Chinese Journal of Chromatography ›› 2022, Vol. 40 ›› Issue (9): 797-809.DOI: 10.3724/SP.J.1123.2022.03003
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ZHOU Zhiming*(), LI Jing, CHEN Zhanghao, WU Yingying, LU Tuliu, XIAO Shuxiong
Received:
2022-03-03
Online:
2022-09-08
Published:
2022-09-26
Contact:
ZHOU Zhiming
Supported by:
CLC Number:
ZHOU Zhiming, LI Jing, CHEN Zhanghao, WU Yingying, LU Tuliu, XIAO Shuxiong. Determination of 32 oxidative dyes by high performance liquid chromatography and confirmation by high performance liquid chromatography-tandem mass spectrometry[J]. Chinese Journal of Chromatography, 2022, 40(9): 797-809.
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URL: https://www.chrom-china.com/EN/10.3724/SP.J.1123.2022.03003
HPLC condition 1 | HPLC condition 2 | HPLC-MS/MS condition | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Time/min | φ(A)/% | φ(B)/% | φ(C)/% | Time/min | φ(A)/% | φ(B)/% | Time/min | φ(D)/% | φ(C)/% | |||
0 | 96 | 2 | 2 | 0 | 92 | 8 | 0 | 95 | 5 | |||
15 | 96 | 2 | 2 | 8 | 92 | 8 | 4 | 95 | 5 | |||
22 | 90 | 5 | 5 | 35 | 50 | 50 | 11 | 80 | 20 | |||
35 | 50 | 10 | 40 | 45 | 50 | 50 | 16 | 30 | 70 | |||
50 | 50 | 10 | 40 | 45.1 | 92 | 8 | 17 | 5 | 95 | |||
50.1 | 96 | 2 | 2 | 50 | 92 | 8 | 19 | 5 | 95 | |||
55 | 96 | 2 | 2 | 19.1 | 95 | 5 |
Table 1 Mobile phase gradient conditions of HPLC and HPLC-MS/MS for the 32 dyes
HPLC condition 1 | HPLC condition 2 | HPLC-MS/MS condition | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Time/min | φ(A)/% | φ(B)/% | φ(C)/% | Time/min | φ(A)/% | φ(B)/% | Time/min | φ(D)/% | φ(C)/% | |||
0 | 96 | 2 | 2 | 0 | 92 | 8 | 0 | 95 | 5 | |||
15 | 96 | 2 | 2 | 8 | 92 | 8 | 4 | 95 | 5 | |||
22 | 90 | 5 | 5 | 35 | 50 | 50 | 11 | 80 | 20 | |||
35 | 50 | 10 | 40 | 45 | 50 | 50 | 16 | 30 | 70 | |||
50 | 50 | 10 | 40 | 45.1 | 92 | 8 | 17 | 5 | 95 | |||
50.1 | 96 | 2 | 2 | 50 | 92 | 8 | 19 | 5 | 95 | |||
55 | 96 | 2 | 2 | 19.1 | 95 | 5 |
Dye No. | Dye | Ionization mode | Parent ion (m/z) | Daughter ion (m/z) (collision energy/eV) | tR/min |
---|---|---|---|---|---|
1 | p-phenylenediamine | + | 109.2 | 65.2 (31) | 2.7 |
(p-苯二胺) | 92.1 (26) | ||||
2 | p-aminophenol | + | 110.0 | 65.1 (28) | 3.7 |
(p-氨基苯酚) | 93.0 (38) | ||||
3 | toluene-2,5-diamine sulfate | + | 123.1 | 108.2 (24) | 9.9 |
(甲苯-2,5-二胺硫酸盐) | 77.1 (40) | ||||
4 | m-aminophenol | + | 109.9 | 65.1 (28) | 6.3 |
(m-氨基苯酚) | 92.9 (22) | ||||
5 | o-phenylenediamine | + | 109.0 | 65.2 (33) | 8.0 |
(o-苯二胺) | 92.1 (22) | ||||
6 | 2-chloro-p-phenylenediamine sulfate | + | 143.1 | 108.1 (25) | 9.6 |
(2-氯-p-苯二胺硫酸盐) | 80.1 (36) | ||||
7 | o-aminophenol | + | 110.0 | 65.1 (30) | 9.1 |
(o-氨基苯酚) | 92.1 (22) | ||||
8 | resorcinol | - | 109.1 | 65.0 (17) | 8.9 |
(间苯二酚) | 41.0 (23) | ||||
9 | 2-nitro-p-phenylenediamine | + | 154.0 | 119.1 (22) | 11.0 |
(2-硝基-p-苯二胺) | 135.8 (13) | ||||
10 | toluene-3,4-diamine | + | 123.0 | 77.1 (37) | 13.6 |
(甲苯-3,4-二胺) | 106.0 (22) | ||||
11 | 4-amino-2-hydroxytoluene | + | 124.0 | 109.0 (26) | 13.2 |
(4-氨基-2-羟基甲苯) | 77.1 (35) | ||||
12 | 2-methylresorcinol | - | 123.0 | 55.0 (34) | 10.6 |
(2-甲基雷琐辛) | 79.0 (17) | ||||
13 | 6-amino-m-cresol | + | 124.1 | 106.0 (30) | 14.2 |
(6-氨基-m-甲酚) | 77.1 (36) | ||||
14 | pyrazolone methyl pyrazolone | + | 175.2 | 133.0 (26) | 14.7 |
(苯基甲基吡唑啉酮) | 65.0 (46) | ||||
15 | N,N-diethyltoluene-2,5-diamine hydrochloride | + | 179.1 | 150.0 (23) | 15.2 |
(N,N-二乙基甲苯-2,5-二胺盐酸盐) | 135.1 (36) | ||||
16 | 4-amino-3-nitrophenol | - | 153.2 | 123.0 (14) | 14.1 |
(4-氨基-3-硝基苯酚) | 122.0 (25) | ||||
17 | m-phenylenediamine | + | 109.2 | 65.2 (31) | 4.6 |
(m-苯二胺) | 92.1 (22) | ||||
18 | 2,4-diaminophenoxy ethanol hydrochloride | + | 169.1 | 124.1 (25) | 6.2 |
(2,4-二氨基苯氧基乙醇盐酸盐) | 108.0 (27) | ||||
19 | hydroquinone | - | 109.0 | 108.0 (21) | 5.2 |
(氢醌) | 81.0 (16) | ||||
20 | 4-amino-m-cresol | + | 124.0 | 109.2 (31) | 7.4 |
(4-氨基-m-甲酚) | 77.2 (35) | ||||
21 | 2-amino-3-hydroxypyridine | + | 111.1 | 94.0 (25) | 2.7 |
(2-氨基-3-羟基吡啶) | 66.2 (39) | ||||
22 | N,N-bis(2-hydroxyethyl)-p-phenylenediamine sulfate | + | 197.1 | 121.1 (36) | 9.4 |
(N,N-双(2-羟乙基)-p-苯二胺硫酸盐) | 152.2 (22) | ||||
23 | p-methylaminophenol sulfate | + | 124.0 | 77.1 (43) | 9.9 |
(p-甲基氨基苯酚硫酸盐) | 109.1 (31) | ||||
24 | 4-nitro-o-phenylenediamine | + | 154.0 | 137.0 (19) | 13.6 |
(4-硝基-o-苯二胺) | 107.0 (28) | ||||
Dye No. | Dye | Ionization mode | Parent ion (m/z) | Daughter ion (m/z) (collision energy/eV) | tR/min |
25 | 2,6-diaminopyridine | + | 110.0 | 66.1 (33) | 4.6 |
(2,6-二氨基吡啶) | 93.0 (30) | ||||
26 | N,N-diethyl-p-phenylenediamine sulfate | + | 165.1 | 121.0 (21) | 14.3 |
(N,N-二乙基-p-苯二胺硫酸盐) | 136.2 (28) | ||||
27 | 6-hydroxyindole | + | 134.0 | 107.1 (28) | 15.7 |
(6-羟基吲哚) | 77.1 (42) | ||||
28 | 4-chlororesorcinol | - | 143.2 | 79.0 (19) | 15.3 |
(4-氯雷琐辛) | 107.0 (16) | ||||
29 | 2,7-naphthalenediol | - | 159.1 | 130.0 (33) | 15.9 |
(2,7-萘二酚) | 102.2 (33) | ||||
30 | N-phenyl-p-phenylenediamine | + | 185.1 | 93.1 (29) | 17.4 |
(N-苯基-p-苯二胺) | 108.1 (31) | ||||
31 | 1,5-naphthalenediol | - | 159.1 | 115.1 (25) | 15.8 |
(1,5-萘二酚) | 131.0 (27) | ||||
32 | 1-naphthol | - | 143.1 | 115.1 (34) | 17.8 |
(1-萘酚) | 41.0 (49) |
Table 2 Ionization modes, parent ions, daughter ions, collision energies, and retention times (tR) of the 32 dyes
Dye No. | Dye | Ionization mode | Parent ion (m/z) | Daughter ion (m/z) (collision energy/eV) | tR/min |
---|---|---|---|---|---|
1 | p-phenylenediamine | + | 109.2 | 65.2 (31) | 2.7 |
(p-苯二胺) | 92.1 (26) | ||||
2 | p-aminophenol | + | 110.0 | 65.1 (28) | 3.7 |
(p-氨基苯酚) | 93.0 (38) | ||||
3 | toluene-2,5-diamine sulfate | + | 123.1 | 108.2 (24) | 9.9 |
(甲苯-2,5-二胺硫酸盐) | 77.1 (40) | ||||
4 | m-aminophenol | + | 109.9 | 65.1 (28) | 6.3 |
(m-氨基苯酚) | 92.9 (22) | ||||
5 | o-phenylenediamine | + | 109.0 | 65.2 (33) | 8.0 |
(o-苯二胺) | 92.1 (22) | ||||
6 | 2-chloro-p-phenylenediamine sulfate | + | 143.1 | 108.1 (25) | 9.6 |
(2-氯-p-苯二胺硫酸盐) | 80.1 (36) | ||||
7 | o-aminophenol | + | 110.0 | 65.1 (30) | 9.1 |
(o-氨基苯酚) | 92.1 (22) | ||||
8 | resorcinol | - | 109.1 | 65.0 (17) | 8.9 |
(间苯二酚) | 41.0 (23) | ||||
9 | 2-nitro-p-phenylenediamine | + | 154.0 | 119.1 (22) | 11.0 |
(2-硝基-p-苯二胺) | 135.8 (13) | ||||
10 | toluene-3,4-diamine | + | 123.0 | 77.1 (37) | 13.6 |
(甲苯-3,4-二胺) | 106.0 (22) | ||||
11 | 4-amino-2-hydroxytoluene | + | 124.0 | 109.0 (26) | 13.2 |
(4-氨基-2-羟基甲苯) | 77.1 (35) | ||||
12 | 2-methylresorcinol | - | 123.0 | 55.0 (34) | 10.6 |
(2-甲基雷琐辛) | 79.0 (17) | ||||
13 | 6-amino-m-cresol | + | 124.1 | 106.0 (30) | 14.2 |
(6-氨基-m-甲酚) | 77.1 (36) | ||||
14 | pyrazolone methyl pyrazolone | + | 175.2 | 133.0 (26) | 14.7 |
(苯基甲基吡唑啉酮) | 65.0 (46) | ||||
15 | N,N-diethyltoluene-2,5-diamine hydrochloride | + | 179.1 | 150.0 (23) | 15.2 |
(N,N-二乙基甲苯-2,5-二胺盐酸盐) | 135.1 (36) | ||||
16 | 4-amino-3-nitrophenol | - | 153.2 | 123.0 (14) | 14.1 |
(4-氨基-3-硝基苯酚) | 122.0 (25) | ||||
17 | m-phenylenediamine | + | 109.2 | 65.2 (31) | 4.6 |
(m-苯二胺) | 92.1 (22) | ||||
18 | 2,4-diaminophenoxy ethanol hydrochloride | + | 169.1 | 124.1 (25) | 6.2 |
(2,4-二氨基苯氧基乙醇盐酸盐) | 108.0 (27) | ||||
19 | hydroquinone | - | 109.0 | 108.0 (21) | 5.2 |
(氢醌) | 81.0 (16) | ||||
20 | 4-amino-m-cresol | + | 124.0 | 109.2 (31) | 7.4 |
(4-氨基-m-甲酚) | 77.2 (35) | ||||
21 | 2-amino-3-hydroxypyridine | + | 111.1 | 94.0 (25) | 2.7 |
(2-氨基-3-羟基吡啶) | 66.2 (39) | ||||
22 | N,N-bis(2-hydroxyethyl)-p-phenylenediamine sulfate | + | 197.1 | 121.1 (36) | 9.4 |
(N,N-双(2-羟乙基)-p-苯二胺硫酸盐) | 152.2 (22) | ||||
23 | p-methylaminophenol sulfate | + | 124.0 | 77.1 (43) | 9.9 |
(p-甲基氨基苯酚硫酸盐) | 109.1 (31) | ||||
24 | 4-nitro-o-phenylenediamine | + | 154.0 | 137.0 (19) | 13.6 |
(4-硝基-o-苯二胺) | 107.0 (28) | ||||
Dye No. | Dye | Ionization mode | Parent ion (m/z) | Daughter ion (m/z) (collision energy/eV) | tR/min |
25 | 2,6-diaminopyridine | + | 110.0 | 66.1 (33) | 4.6 |
(2,6-二氨基吡啶) | 93.0 (30) | ||||
26 | N,N-diethyl-p-phenylenediamine sulfate | + | 165.1 | 121.0 (21) | 14.3 |
(N,N-二乙基-p-苯二胺硫酸盐) | 136.2 (28) | ||||
27 | 6-hydroxyindole | + | 134.0 | 107.1 (28) | 15.7 |
(6-羟基吲哚) | 77.1 (42) | ||||
28 | 4-chlororesorcinol | - | 143.2 | 79.0 (19) | 15.3 |
(4-氯雷琐辛) | 107.0 (16) | ||||
29 | 2,7-naphthalenediol | - | 159.1 | 130.0 (33) | 15.9 |
(2,7-萘二酚) | 102.2 (33) | ||||
30 | N-phenyl-p-phenylenediamine | + | 185.1 | 93.1 (29) | 17.4 |
(N-苯基-p-苯二胺) | 108.1 (31) | ||||
31 | 1,5-naphthalenediol | - | 159.1 | 115.1 (25) | 15.8 |
(1,5-萘二酚) | 131.0 (27) | ||||
32 | 1-naphthol | - | 143.1 | 115.1 (34) | 17.8 |
(1-萘酚) | 41.0 (49) |
Dye No. | Frequency of dye use/% | Group | Dye No. | Frequency of dye use/% | Group | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Register samples | Supervise sampling samples | Ref. [ | Ref. [ | Ref. [ | Register samples | Supervise sampling samples | Ref. [ | Ref. [ | Ref. [ | ||||
1 | 37.4 | 71.1 | 37.4 | 78.3 | 59.8 | Ⅰ | 17 | - | 0.3 | - | - | - | Ⅱ |
2 | 54.9 | 36.5 | 33.0 | 64.0 | 59.8 | Ⅰ | 18 | 18.7 | 32.2 | 28.6 | 3.9 | 13.4 | Ⅰ |
3 | 29.7 | 25.0 | 32.0 | 44.8 | 36.6 | Ⅰ | 19 | - | - | - | - | - | Ⅱ |
4 | 45.1 | 70.9 | 39.9 | 54.2 | 56.1 | Ⅰ | 20 | 3.3 | 5.0 | 12.3 | 5.4 | 8.5 | Ⅰ |
5 | - | - | - | - | - | Ⅱ | 21 | - | 7.0 | 10.3 | - | 7.3 | Ⅰ |
6 | 5.5 | 0.3 | - | - | - | Ⅰ | 22 | 8.8 | 10.2 | 14.3 | - | 8.5 | Ⅰ |
7 | - | 4.4 | - | 10.8 | 2.4 | Ⅱ | 23 | - | 1.0 | - | - | 1.2 | Ⅱ |
8 | 45.1 | 77.3 | 52.2 | 84.2 | 52.4 | Ⅰ | 24 | - | 0.2 | - | 4.4 | 1.2 | Ⅱ |
9 | - | 0.1 | - | - | - | Ⅰ | 25 | - | 1.0 | - | - | - | Ⅰ |
10 | - | 0.1 | - | - | - | Ⅱ | 26 | - | 0.1 | - | - | - | Ⅱ |
11 | 59.3 | 29.5 | 43.3 | 25.1 | 42.7 | Ⅰ | 27 | - | 1.5 | - | - | - | Ⅰ |
12 | 24.2 | 8.5 | 19.7 | 6.4 | 8.5 | Ⅰ | 28 | - | 6.8 | - | - | 2.4 | Ⅰ |
13 | 3.3 | 0.1 | - | - | 1.2 | Ⅱ | 29 | - | 0.1 | - | - | - | Ⅱ |
14 | 27.5 | 19.2 | 10.8 | - | 1.2 | Ⅰ | 30 | - | - | - | - | - | Ⅱ |
15 | - | 0.1 | - | - | - | Ⅱ | 31 | - | 3.6 | - | - | - | Ⅰ |
16 | 3.3 | 0.1 | - | - | - | Ⅰ | 32 | 15.4 | 10.5 | 10.8 | 3.9 | 6.1 | Ⅰ |
Table 3 Application frequency and grouping of the 32 dyes
Dye No. | Frequency of dye use/% | Group | Dye No. | Frequency of dye use/% | Group | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Register samples | Supervise sampling samples | Ref. [ | Ref. [ | Ref. [ | Register samples | Supervise sampling samples | Ref. [ | Ref. [ | Ref. [ | ||||
1 | 37.4 | 71.1 | 37.4 | 78.3 | 59.8 | Ⅰ | 17 | - | 0.3 | - | - | - | Ⅱ |
2 | 54.9 | 36.5 | 33.0 | 64.0 | 59.8 | Ⅰ | 18 | 18.7 | 32.2 | 28.6 | 3.9 | 13.4 | Ⅰ |
3 | 29.7 | 25.0 | 32.0 | 44.8 | 36.6 | Ⅰ | 19 | - | - | - | - | - | Ⅱ |
4 | 45.1 | 70.9 | 39.9 | 54.2 | 56.1 | Ⅰ | 20 | 3.3 | 5.0 | 12.3 | 5.4 | 8.5 | Ⅰ |
5 | - | - | - | - | - | Ⅱ | 21 | - | 7.0 | 10.3 | - | 7.3 | Ⅰ |
6 | 5.5 | 0.3 | - | - | - | Ⅰ | 22 | 8.8 | 10.2 | 14.3 | - | 8.5 | Ⅰ |
7 | - | 4.4 | - | 10.8 | 2.4 | Ⅱ | 23 | - | 1.0 | - | - | 1.2 | Ⅱ |
8 | 45.1 | 77.3 | 52.2 | 84.2 | 52.4 | Ⅰ | 24 | - | 0.2 | - | 4.4 | 1.2 | Ⅱ |
9 | - | 0.1 | - | - | - | Ⅰ | 25 | - | 1.0 | - | - | - | Ⅰ |
10 | - | 0.1 | - | - | - | Ⅱ | 26 | - | 0.1 | - | - | - | Ⅱ |
11 | 59.3 | 29.5 | 43.3 | 25.1 | 42.7 | Ⅰ | 27 | - | 1.5 | - | - | - | Ⅰ |
12 | 24.2 | 8.5 | 19.7 | 6.4 | 8.5 | Ⅰ | 28 | - | 6.8 | - | - | 2.4 | Ⅰ |
13 | 3.3 | 0.1 | - | - | 1.2 | Ⅱ | 29 | - | 0.1 | - | - | - | Ⅱ |
14 | 27.5 | 19.2 | 10.8 | - | 1.2 | Ⅰ | 30 | - | - | - | - | - | Ⅱ |
15 | - | 0.1 | - | - | - | Ⅱ | 31 | - | 3.6 | - | - | - | Ⅰ |
16 | 3.3 | 0.1 | - | - | - | Ⅰ | 32 | 15.4 | 10.5 | 10.8 | 3.9 | 6.1 | Ⅰ |
Compound | tR/min | Disturbed dye Nos. | |||
---|---|---|---|---|---|
Condition 1 | Condition 2 | Condition 1 | Condition 2 | ||
2-Amino-4-hydroxyethyl aminoanisyl ether (2-氨基-4-羟乙氨基茴香醚) | 29.58 | 22.18 | No. 14 | No. 14 | |
Hydroxybenzimoline (羟苯并吗啉) | 29.58 | 21.30 | No. 14 | No. 14 | |
2,6-Dihydroxyethyl aminotoluene (2,6-二羟乙基氨甲苯) | 31.31 | 27.28 | No. 24; No. 16 | No. 13 | |
3-Nitro-p-hydroxyacetaminophen (3-硝基对羟乙氨基酚) | 32.43 | 27.95 | No. 10 | / | |
2-Methyl-5-hydroxyethylaminophenol (2-甲基-5-羟乙氨基苯酚) | 32.65 | 28.81 | / | No. 28 | |
Hydroxyethyl-3,4-methylenedioxyaniline hydrochloride | 33.53 | 30.25 | No. 28 | No. 27 | |
(羟乙基-3,4-亚甲二氧基苯胺盐酸盐) | |||||
4-Hydroxyalanine-3-nitrophenol (4-羟丙氨基-3-硝基苯酚) | 33.88 | 32.24 | No. 28 | No. 31 | |
HC yellow No. 4 (HC黄4号) | 34.792 | 34.29 | No. 27; No. 13 | / | |
5-Amino-6-chloro-o-cresol (5-氨基-6-氯-邻甲酚) | 35.22 | 30.25 | No. 31; No. 29 | No. 27 | |
HC yellow No. 2 (HC黄2号) | 37.21 | 37.95 | / | / | |
5-Amino-4-chloro-o-cresol (5-氨基-4-氯-邻甲酚) | 37.96 | 39.26 | / | / | |
Hydroxyethyl-2-nitro-p-toluidine (羟乙基-2-硝基对甲苯胺) | 39.87 | 45.00 | / | / | |
Disperse violet No. 1 (分散紫1号) | 41.67 | 56.60 | No. 30 | / | |
HC orange No. 1 (HC橙1号) | 48.67 | 59.60 | / | / | |
HC red No. 1 (HC红1号) | 49.47 | 59.07 | / | / |
Table 4 HPLC retention times of 15 other common dyes and interference dye Nos. of the 32 dyes
Compound | tR/min | Disturbed dye Nos. | |||
---|---|---|---|---|---|
Condition 1 | Condition 2 | Condition 1 | Condition 2 | ||
2-Amino-4-hydroxyethyl aminoanisyl ether (2-氨基-4-羟乙氨基茴香醚) | 29.58 | 22.18 | No. 14 | No. 14 | |
Hydroxybenzimoline (羟苯并吗啉) | 29.58 | 21.30 | No. 14 | No. 14 | |
2,6-Dihydroxyethyl aminotoluene (2,6-二羟乙基氨甲苯) | 31.31 | 27.28 | No. 24; No. 16 | No. 13 | |
3-Nitro-p-hydroxyacetaminophen (3-硝基对羟乙氨基酚) | 32.43 | 27.95 | No. 10 | / | |
2-Methyl-5-hydroxyethylaminophenol (2-甲基-5-羟乙氨基苯酚) | 32.65 | 28.81 | / | No. 28 | |
Hydroxyethyl-3,4-methylenedioxyaniline hydrochloride | 33.53 | 30.25 | No. 28 | No. 27 | |
(羟乙基-3,4-亚甲二氧基苯胺盐酸盐) | |||||
4-Hydroxyalanine-3-nitrophenol (4-羟丙氨基-3-硝基苯酚) | 33.88 | 32.24 | No. 28 | No. 31 | |
HC yellow No. 4 (HC黄4号) | 34.792 | 34.29 | No. 27; No. 13 | / | |
5-Amino-6-chloro-o-cresol (5-氨基-6-氯-邻甲酚) | 35.22 | 30.25 | No. 31; No. 29 | No. 27 | |
HC yellow No. 2 (HC黄2号) | 37.21 | 37.95 | / | / | |
5-Amino-4-chloro-o-cresol (5-氨基-4-氯-邻甲酚) | 37.96 | 39.26 | / | / | |
Hydroxyethyl-2-nitro-p-toluidine (羟乙基-2-硝基对甲苯胺) | 39.87 | 45.00 | / | / | |
Disperse violet No. 1 (分散紫1号) | 41.67 | 56.60 | No. 30 | / | |
HC orange No. 1 (HC橙1号) | 48.67 | 59.60 | / | / | |
HC red No. 1 (HC红1号) | 49.47 | 59.07 | / | / |
Dye No. | HPLC | HPLC-MS/MS | |||||
---|---|---|---|---|---|---|---|
Linear range/(mg/L) | r2 | LOD/(μg/g) | Linear range/(mg/L) | r2 | LOD/(μg/g) | ||
1 | 10.0-499.5 | 0.9999 | 40.0 | 0.1-4.2 | 0.9986 | 0.04 | |
2 | 10.0-499.0 | 0.9999 | 20.0 | 0.1-4.3 | 0.9986 | 0.04 | |
3 | 10.0-500.0 | 0.9998 | 40.0 | 0.1-4.2 | 0.9999 | 0.2 | |
4 | 10.0-501.2 | 0.9979 | 20.0 | 0.1-4.2 | 0.9950 | 0.2 | |
5 | 9.9-495.0 | 1.0000 | 19.8 | 0.1-4.2 | 0.9999 | 0.02 | |
6 | 9.9-497.1 | 0.9996 | 39.9 | 0.1-4.3 | 0.9995 | 0.04 | |
7 | 10.2-509.6 | 1.0000 | 10.2 | 0.1-4.1 | 0.9962 | 0.02 | |
8 | 10.0-501.6 | 1.0000 | 20.0 | 0.1-4.0 | 0.9991 | 0.4 | |
9 | 10.0-500.0 | 1.0000 | 10.0 | 0.1-4.4 | 0.9991 | 0.02 | |
10 | 10.0-501.0 | 1.0000 | 10.0 | 0.1-4.3 | 0.9994 | 0.02 | |
Dye No. | HPLC | HPLC-MS/MS | |||||
Linear range/(mg/L) | r2 | LOD/(μg/g) | Linear range/(mg/L) | r2 | LOD/(μg/g) | ||
11 | 10.0-500.0 | 0.9979 | 19.7 | 0.1-4.1 | 0.9999 | 0.02 | |
12 | 10.0-500.0 | 0.9999 | 40.0 | 0.1-4.2 | 0.9992 | 0.4 | |
13 | 10.0-490.0 | 1.0000 | 19.6 | 0.1-3.8 | 0.9984 | 0.02 | |
14 | 10.0-500.2 | 0.9991 | 19.6 | 0.1-4.2 | 0.9996 | 0.02 | |
15 | 10.0-501.1 | 1.0000 | 40.1 | 0.1-4.2 | 0.9990 | 0.01 | |
16 | 10.0-498.7 | 1.0000 | 20.1 | 0.1-4.2 | 0.9995 | 0.04 | |
17 | 10.0-500.9 | 0.9999 | 10.0 | 0.1-3.7 | 0.9981 | 0.02 | |
18 | 9.8-489.6 | 0.9974 | 39.2 | 0.1-4.0 | 0.9999 | 0.04 | |
19 | 10.0-500.0 | 0.9997 | 10.0 | 2.0-79.7 | 0.9979 | 8.0 | |
20 | 9.9-493.1 | 0.9995 | 19.9 | 0.1-4.0 | 0.9901 | 0.04 | |
21 | 9.9-496.9 | 1.0000 | 39.8 | 0.1-4.2 | 0.9948 | 0.04 | |
22 | 9.7-486.8 | 0.9999 | 39.6 | 0.1-4.2 | 0.9974 | 0.4 | |
23 | 9.9-493.9 | 0.9999 | 39.5 | 0.1-4.5 | 0.9937 | 0.02 | |
24 | 9.9-493.4 | 1.0000 | 9.9 | 0.1-3.8 | 0.9994 | 0.02 | |
25 | 9.9-494.9 | 1.0000 | 19.8 | 0.1-4.3 | 0.9993 | 0.02 | |
26 | 9.9-496.6 | 1.0000 | 39.7 | 0.1-4.0 | 0.9990 | 0.2 | |
27 | 9.8-491.0 | 1.0000 | 9.7 | 0.1-4.3 | 0.9988 | 0.2 | |
28 | 10.0-501.0 | 1.0000 | 9.9 | 0.1-4.3 | 0.9999 | 0.2 | |
29 | 10.1-503.1 | 1.0000 | 10.1 | 0.1-4.4 | 0.9999 | 0.04 | |
30 | 9.9-497.4 | 1.0000 | 9.9 | 0.1-4.6 | 0.9965 | 0.01 | |
31 | 10.1-505.1 | 1.0000 | 10.0 | 0.1-3.8 | 0.9999 | 0.2 | |
32 | 10.0-498.3 | 1.0000 | 10.0 | 0.1-3.8 | 0.9980 | 0.2 |
Table 5 Linear ranges, correlation coefficients (r2), and limits of detection (LODs) of the 32 dyes determined using HPLC and HPLC-MS/MS
Dye No. | HPLC | HPLC-MS/MS | |||||
---|---|---|---|---|---|---|---|
Linear range/(mg/L) | r2 | LOD/(μg/g) | Linear range/(mg/L) | r2 | LOD/(μg/g) | ||
1 | 10.0-499.5 | 0.9999 | 40.0 | 0.1-4.2 | 0.9986 | 0.04 | |
2 | 10.0-499.0 | 0.9999 | 20.0 | 0.1-4.3 | 0.9986 | 0.04 | |
3 | 10.0-500.0 | 0.9998 | 40.0 | 0.1-4.2 | 0.9999 | 0.2 | |
4 | 10.0-501.2 | 0.9979 | 20.0 | 0.1-4.2 | 0.9950 | 0.2 | |
5 | 9.9-495.0 | 1.0000 | 19.8 | 0.1-4.2 | 0.9999 | 0.02 | |
6 | 9.9-497.1 | 0.9996 | 39.9 | 0.1-4.3 | 0.9995 | 0.04 | |
7 | 10.2-509.6 | 1.0000 | 10.2 | 0.1-4.1 | 0.9962 | 0.02 | |
8 | 10.0-501.6 | 1.0000 | 20.0 | 0.1-4.0 | 0.9991 | 0.4 | |
9 | 10.0-500.0 | 1.0000 | 10.0 | 0.1-4.4 | 0.9991 | 0.02 | |
10 | 10.0-501.0 | 1.0000 | 10.0 | 0.1-4.3 | 0.9994 | 0.02 | |
Dye No. | HPLC | HPLC-MS/MS | |||||
Linear range/(mg/L) | r2 | LOD/(μg/g) | Linear range/(mg/L) | r2 | LOD/(μg/g) | ||
11 | 10.0-500.0 | 0.9979 | 19.7 | 0.1-4.1 | 0.9999 | 0.02 | |
12 | 10.0-500.0 | 0.9999 | 40.0 | 0.1-4.2 | 0.9992 | 0.4 | |
13 | 10.0-490.0 | 1.0000 | 19.6 | 0.1-3.8 | 0.9984 | 0.02 | |
14 | 10.0-500.2 | 0.9991 | 19.6 | 0.1-4.2 | 0.9996 | 0.02 | |
15 | 10.0-501.1 | 1.0000 | 40.1 | 0.1-4.2 | 0.9990 | 0.01 | |
16 | 10.0-498.7 | 1.0000 | 20.1 | 0.1-4.2 | 0.9995 | 0.04 | |
17 | 10.0-500.9 | 0.9999 | 10.0 | 0.1-3.7 | 0.9981 | 0.02 | |
18 | 9.8-489.6 | 0.9974 | 39.2 | 0.1-4.0 | 0.9999 | 0.04 | |
19 | 10.0-500.0 | 0.9997 | 10.0 | 2.0-79.7 | 0.9979 | 8.0 | |
20 | 9.9-493.1 | 0.9995 | 19.9 | 0.1-4.0 | 0.9901 | 0.04 | |
21 | 9.9-496.9 | 1.0000 | 39.8 | 0.1-4.2 | 0.9948 | 0.04 | |
22 | 9.7-486.8 | 0.9999 | 39.6 | 0.1-4.2 | 0.9974 | 0.4 | |
23 | 9.9-493.9 | 0.9999 | 39.5 | 0.1-4.5 | 0.9937 | 0.02 | |
24 | 9.9-493.4 | 1.0000 | 9.9 | 0.1-3.8 | 0.9994 | 0.02 | |
25 | 9.9-494.9 | 1.0000 | 19.8 | 0.1-4.3 | 0.9993 | 0.02 | |
26 | 9.9-496.6 | 1.0000 | 39.7 | 0.1-4.0 | 0.9990 | 0.2 | |
27 | 9.8-491.0 | 1.0000 | 9.7 | 0.1-4.3 | 0.9988 | 0.2 | |
28 | 10.0-501.0 | 1.0000 | 9.9 | 0.1-4.3 | 0.9999 | 0.2 | |
29 | 10.1-503.1 | 1.0000 | 10.1 | 0.1-4.4 | 0.9999 | 0.04 | |
30 | 9.9-497.4 | 1.0000 | 9.9 | 0.1-4.6 | 0.9965 | 0.01 | |
31 | 10.1-505.1 | 1.0000 | 10.0 | 0.1-3.8 | 0.9999 | 0.2 | |
32 | 10.0-498.3 | 1.0000 | 10.0 | 0.1-3.8 | 0.9980 | 0.2 |
Dye No. | HPLC (10 mg/L) | HPLC (500 mg/L) | HPLC-MS/MS (0.1 mg/L) | HPLC-MS/MS (4 mg/L) | |||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Precision (n=6) | Stability | Precision (n=6) | Stability | Precision (n=6) | Stability | Precision (n=6) | Stability | ||||||||||||||||||||
1 d | 3 d | 48 h | 72 h | 1 d | 3 d | 48 h | 72 h | 1 d | 3 d | 48 h | 72 h | 1 d | 3 d | 48 h | 72 h | ||||||||||||
1 | 2.0 | 4.6 | 3.9 | 4.5 | 3.8 | 2.4 | 1.6 | 1.8 | 3.2 | 3.3 | 3.2 | 4.5 | 5.6 | 4.8 | 5.2 | 4.5 | |||||||||||
2 | 3.2 | 3.9 | 4.1 | 4.2 | 2.1 | 3.1 | 2.3 | 2.3 | 6.4 | 7.7 | 2.5 | 3.7 | 8.1 | 9.3 | 3.6 | 3.1 | |||||||||||
3 | 5.0 | 7.5 | 4.0 | 3.8 | 4.8 | 8.0 | 4.9 | 5.5 | 9.3 | 7.4 | 3.9 | 5.5 | 9.8 | 8.7 | 6.1 | 5.1 | |||||||||||
4 | 1.7 | 3.3 | 4.7 | 4.9 | 1.0 | 3.2 | 1.2 | 1.6 | 8.8 | 10 | 4.2 | 8.4 | 9.3 | 8.8 | 5.8 | 6.2 | |||||||||||
5 | 0.7 | 1.2 | 0.8 | 1.0 | 0.1 | 0.3 | 0.2 | 0.4 | 4.1 | 8.1 | 2.0 | 3.7 | 8.1 | 8.1 | 3.7 | 3.2 | |||||||||||
6 | 2.7 | 4.5 | 3.9 | 5.3 | 2.3 | 3.8 | 4.3 | 4.3 | 9.8 | 9.4 | 3.4 | 11 | 9.4 | 8.3 | 5.6 | 5.3 | |||||||||||
7 | 1.2 | 1.8 | 0.9 | 0.9 | 0.1 | 0.3 | 0.1 | 0.3 | 6.5 | 8.0 | 2.6 | 4.9 | 7.6 | 7.2 | 4.2 | 4.3 | |||||||||||
8 | 4.8 | 8.7 | 4.3 | 5.2 | 1.8 | 4.4 | 2.6 | 2.7 | 5.2 | 8.7 | 3.4 | 11 | 8.3 | 8.7 | 4.5 | 7.9 | |||||||||||
9 | 2.5 | 4.2 | 1.0 | 2.6 | 0.2 | 3.4 | 0.9 | 2.8 | 9.2 | 7.6 | 2.4 | 4.6 | 6.1 | 8.5 | 4.6 | 4.6 | |||||||||||
10 | 1.3 | 1.6 | 1.1 | 1.1 | 0.3 | 0.4 | 0.1 | 0.2 | 9.9 | 9.4 | 2.4 | 3.6 | 8.4 | 9.2 | 3.5 | 3.2 | |||||||||||
11 | 2.0 | 5.5 | 4.6 | 4.5 | 0.2 | 4.9 | 0.5 | 1.2 | 4.6 | 4.7 | 2.9 | 4.4 | 5.5 | 5.2 | 4.1 | 3.8 | |||||||||||
12 | 4.2 | 9.2 | 1.9 | 2.8 | 0.7 | 4.8 | 4.0 | 3.8 | 9.3 | 9.2 | 3.0 | 6.5 | 9.3 | 9.6 | 3.1 | 4.0 | |||||||||||
13 | 0.7 | 1.5 | 1.5 | 1.8 | 0.1 | 0.6 | 0.3 | 0.42 | 8.4 | 7.7 | 1.3 | 2.2 | 9.3 | 9.5 | 1.6 | 1.4 | |||||||||||
14 | 1.0 | 6.6 | 1.1 | 3.5 | 0.7 | 9.0 | 3.3 | 5.2 | 2.4 | 8.7 | 2.0 | 8.3 | 3.7 | 8.7 | 1.8 | 5.9 | |||||||||||
Dye No. | HPLC (10 mg/L) | HPLC (500 mg/L) | HPLC-MS/MS (0.1 mg/L) | HPLC-MS/MS (4 mg/L) | |||||||||||||||||||||||
Precision (n=6) | Stability | Precision (n=6) | Stability | Precision (n=6) | Stability | Precision (n=6) | Stability | ||||||||||||||||||||
1 d | 3 d | 48 h | 72 h | 1 d | 3 d | 48 h | 72 h | 1 d | 3 d | 48 h | 72 h | 1 d | 3 d | 48 h | 72 h | ||||||||||||
15 | 2.8 | 3.3 | 4.8 | 4.5 | 0.2 | 0.5 | 0.2 | 0.2 | 8.8 | 8.7 | 1.1 | 4.6 | 9.1 | 9.2 | 3.4 | 3.8 | |||||||||||
16 | 0.8 | 0.9 | 0.7 | 0.8 | 0.4 | 4.3 | 1.7 | 3.3 | 6.2 | 4.9 | 1.4 | 9.5 | 6.5 | 6.2 | 6.0 | 7.6 | |||||||||||
17 | 0.7 | 1.0 | 1.1 | 1.0 | 0.1 | 1.2 | 1.1 | 1.3 | 7.0 | 5.6 | 2.5 | 4.1 | 6.8 | 6.2 | 3.5 | 3.0 | |||||||||||
18 | 4.5 | 7.3 | 4.3 | 7.4 | 4.7 | 7.8 | 5.0 | 6.1 | 9.5 | 9.9 | 1.8 | 7.4 | 5.5 | 10 | 3.1 | 9.8 | |||||||||||
19 | 4.8 | 10 | 4.1 | 15.5 | 0.1 | 0.2 | 0.1 | 0.1 | 5.2 | 6.3 | 3.9 | 5.9 | 6.9 | 7.5 | 4.9 | 5.8 | |||||||||||
20 | 3.3 | 9.0 | 4.1 | 5.4 | 2.7 | 5.0 | 3.1 | 3.3 | 8.6 | 8.5 | 1.6 | 3.5 | 8.8 | 9.2 | 2.6 | 2.3 | |||||||||||
21 | 2.6 | 2.5 | 4.5 | 4.2 | 1.1 | 1.0 | 0.8 | 0.8 | 8.8 | 8.1 | 2.0 | 4.8 | 8.0 | 6.9 | 4.0 | 3.7 | |||||||||||
22 | 4.4 | 5.2 | 4.2 | 4.0 | 0.2 | 6.8 | 1.0 | 3.8 | 7.2 | 11 | 3.2 | 6.9 | 9.8 | 13 | 4.0 | 8.3 | |||||||||||
23 | 2.1 | 9.8 | 3.5 | 14 | 0.5 | 2.1 | 1.3 | 1.8 | 9.3 | 7.9 | 1.3 | 4.5 | 7.5 | 8.8 | 4.9 | 4.2 | |||||||||||
24 | 0.4 | 0.5 | 0.6 | 0.6 | 0.1 | 0.3 | 0.1 | 0.2 | 6.2 | 6.9 | 1.9 | 7.0 | 8.5 | 7.2 | 1.5 | 4.4 | |||||||||||
25 | 1.5 | 6.1 | 4.4 | 4.3 | 0.4 | 3.5 | 0.5 | 2.5 | 6.1 | 4.3 | 1.7 | 3.4 | 5.8 | 5.5 | 2.6 | 2.8 | |||||||||||
26 | 2.6 | 3.7 | 1.9 | 1.8 | 0.1 | 0.2 | 0.2 | 0.2 | 8.3 | 6.0 | 2.8 | 4.0 | 4.4 | 4.4 | 3.7 | 3.5 | |||||||||||
27 | 1.4 | 0.8 | 1.0 | 1.0 | 0.2 | 0.9 | 0.7 | 1.0 | 8.6 | 8.9 | 2.5 | 5.5 | 8 | 8.2 | 2.2 | 4.9 | |||||||||||
28 | 2.5 | 4.6 | 4.5 | 4.2 | 0.1 | 1.0 | 0.8 | 1.0 | 8.7 | 7.6 | 1.4 | 6.8 | 9.7 | 8.5 | 1.9 | 5.4 | |||||||||||
29 | 0.6 | 0.6 | 0.8 | 0.7 | 0.1 | 0.3 | 0.1 | 0.2 | 5.1 | 7.3 | 2.2 | 3.1 | 5.5 | 7.5 | 4.6 | 4.4 | |||||||||||
30 | 0.5 | 0.6 | 1.2 | 1.1 | 0.1 | 0.4 | 0.1 | 0.3 | 8.6 | 6.1 | 2.5 | 3.3 | 8.8 | 7.6 | 3.1 | 2.9 | |||||||||||
31 | 1.0 | 1.2 | 1.6 | 1.7 | 0.1 | 0.5 | 0.2 | 0.4 | 7.5 | 6.4 | 2.7 | 5.8 | 8.1 | 7.8 | 2.2 | 4.5 | |||||||||||
32 | 1.7 | 1.6 | 3.7 | 3.5 | 0.1 | 0.9 | 0.2 | 0.4 | 6.0 | 9.9 | 2.0 | 6.7 | 9.1 | 9.4 | 3.1 | 5.6 |
Table 6 Precisions (n=6) and stabilities of the 32 dyes determined using HPLC and HPLC-MS/MS RSD/%
Dye No. | HPLC (10 mg/L) | HPLC (500 mg/L) | HPLC-MS/MS (0.1 mg/L) | HPLC-MS/MS (4 mg/L) | |||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Precision (n=6) | Stability | Precision (n=6) | Stability | Precision (n=6) | Stability | Precision (n=6) | Stability | ||||||||||||||||||||
1 d | 3 d | 48 h | 72 h | 1 d | 3 d | 48 h | 72 h | 1 d | 3 d | 48 h | 72 h | 1 d | 3 d | 48 h | 72 h | ||||||||||||
1 | 2.0 | 4.6 | 3.9 | 4.5 | 3.8 | 2.4 | 1.6 | 1.8 | 3.2 | 3.3 | 3.2 | 4.5 | 5.6 | 4.8 | 5.2 | 4.5 | |||||||||||
2 | 3.2 | 3.9 | 4.1 | 4.2 | 2.1 | 3.1 | 2.3 | 2.3 | 6.4 | 7.7 | 2.5 | 3.7 | 8.1 | 9.3 | 3.6 | 3.1 | |||||||||||
3 | 5.0 | 7.5 | 4.0 | 3.8 | 4.8 | 8.0 | 4.9 | 5.5 | 9.3 | 7.4 | 3.9 | 5.5 | 9.8 | 8.7 | 6.1 | 5.1 | |||||||||||
4 | 1.7 | 3.3 | 4.7 | 4.9 | 1.0 | 3.2 | 1.2 | 1.6 | 8.8 | 10 | 4.2 | 8.4 | 9.3 | 8.8 | 5.8 | 6.2 | |||||||||||
5 | 0.7 | 1.2 | 0.8 | 1.0 | 0.1 | 0.3 | 0.2 | 0.4 | 4.1 | 8.1 | 2.0 | 3.7 | 8.1 | 8.1 | 3.7 | 3.2 | |||||||||||
6 | 2.7 | 4.5 | 3.9 | 5.3 | 2.3 | 3.8 | 4.3 | 4.3 | 9.8 | 9.4 | 3.4 | 11 | 9.4 | 8.3 | 5.6 | 5.3 | |||||||||||
7 | 1.2 | 1.8 | 0.9 | 0.9 | 0.1 | 0.3 | 0.1 | 0.3 | 6.5 | 8.0 | 2.6 | 4.9 | 7.6 | 7.2 | 4.2 | 4.3 | |||||||||||
8 | 4.8 | 8.7 | 4.3 | 5.2 | 1.8 | 4.4 | 2.6 | 2.7 | 5.2 | 8.7 | 3.4 | 11 | 8.3 | 8.7 | 4.5 | 7.9 | |||||||||||
9 | 2.5 | 4.2 | 1.0 | 2.6 | 0.2 | 3.4 | 0.9 | 2.8 | 9.2 | 7.6 | 2.4 | 4.6 | 6.1 | 8.5 | 4.6 | 4.6 | |||||||||||
10 | 1.3 | 1.6 | 1.1 | 1.1 | 0.3 | 0.4 | 0.1 | 0.2 | 9.9 | 9.4 | 2.4 | 3.6 | 8.4 | 9.2 | 3.5 | 3.2 | |||||||||||
11 | 2.0 | 5.5 | 4.6 | 4.5 | 0.2 | 4.9 | 0.5 | 1.2 | 4.6 | 4.7 | 2.9 | 4.4 | 5.5 | 5.2 | 4.1 | 3.8 | |||||||||||
12 | 4.2 | 9.2 | 1.9 | 2.8 | 0.7 | 4.8 | 4.0 | 3.8 | 9.3 | 9.2 | 3.0 | 6.5 | 9.3 | 9.6 | 3.1 | 4.0 | |||||||||||
13 | 0.7 | 1.5 | 1.5 | 1.8 | 0.1 | 0.6 | 0.3 | 0.42 | 8.4 | 7.7 | 1.3 | 2.2 | 9.3 | 9.5 | 1.6 | 1.4 | |||||||||||
14 | 1.0 | 6.6 | 1.1 | 3.5 | 0.7 | 9.0 | 3.3 | 5.2 | 2.4 | 8.7 | 2.0 | 8.3 | 3.7 | 8.7 | 1.8 | 5.9 | |||||||||||
Dye No. | HPLC (10 mg/L) | HPLC (500 mg/L) | HPLC-MS/MS (0.1 mg/L) | HPLC-MS/MS (4 mg/L) | |||||||||||||||||||||||
Precision (n=6) | Stability | Precision (n=6) | Stability | Precision (n=6) | Stability | Precision (n=6) | Stability | ||||||||||||||||||||
1 d | 3 d | 48 h | 72 h | 1 d | 3 d | 48 h | 72 h | 1 d | 3 d | 48 h | 72 h | 1 d | 3 d | 48 h | 72 h | ||||||||||||
15 | 2.8 | 3.3 | 4.8 | 4.5 | 0.2 | 0.5 | 0.2 | 0.2 | 8.8 | 8.7 | 1.1 | 4.6 | 9.1 | 9.2 | 3.4 | 3.8 | |||||||||||
16 | 0.8 | 0.9 | 0.7 | 0.8 | 0.4 | 4.3 | 1.7 | 3.3 | 6.2 | 4.9 | 1.4 | 9.5 | 6.5 | 6.2 | 6.0 | 7.6 | |||||||||||
17 | 0.7 | 1.0 | 1.1 | 1.0 | 0.1 | 1.2 | 1.1 | 1.3 | 7.0 | 5.6 | 2.5 | 4.1 | 6.8 | 6.2 | 3.5 | 3.0 | |||||||||||
18 | 4.5 | 7.3 | 4.3 | 7.4 | 4.7 | 7.8 | 5.0 | 6.1 | 9.5 | 9.9 | 1.8 | 7.4 | 5.5 | 10 | 3.1 | 9.8 | |||||||||||
19 | 4.8 | 10 | 4.1 | 15.5 | 0.1 | 0.2 | 0.1 | 0.1 | 5.2 | 6.3 | 3.9 | 5.9 | 6.9 | 7.5 | 4.9 | 5.8 | |||||||||||
20 | 3.3 | 9.0 | 4.1 | 5.4 | 2.7 | 5.0 | 3.1 | 3.3 | 8.6 | 8.5 | 1.6 | 3.5 | 8.8 | 9.2 | 2.6 | 2.3 | |||||||||||
21 | 2.6 | 2.5 | 4.5 | 4.2 | 1.1 | 1.0 | 0.8 | 0.8 | 8.8 | 8.1 | 2.0 | 4.8 | 8.0 | 6.9 | 4.0 | 3.7 | |||||||||||
22 | 4.4 | 5.2 | 4.2 | 4.0 | 0.2 | 6.8 | 1.0 | 3.8 | 7.2 | 11 | 3.2 | 6.9 | 9.8 | 13 | 4.0 | 8.3 | |||||||||||
23 | 2.1 | 9.8 | 3.5 | 14 | 0.5 | 2.1 | 1.3 | 1.8 | 9.3 | 7.9 | 1.3 | 4.5 | 7.5 | 8.8 | 4.9 | 4.2 | |||||||||||
24 | 0.4 | 0.5 | 0.6 | 0.6 | 0.1 | 0.3 | 0.1 | 0.2 | 6.2 | 6.9 | 1.9 | 7.0 | 8.5 | 7.2 | 1.5 | 4.4 | |||||||||||
25 | 1.5 | 6.1 | 4.4 | 4.3 | 0.4 | 3.5 | 0.5 | 2.5 | 6.1 | 4.3 | 1.7 | 3.4 | 5.8 | 5.5 | 2.6 | 2.8 | |||||||||||
26 | 2.6 | 3.7 | 1.9 | 1.8 | 0.1 | 0.2 | 0.2 | 0.2 | 8.3 | 6.0 | 2.8 | 4.0 | 4.4 | 4.4 | 3.7 | 3.5 | |||||||||||
27 | 1.4 | 0.8 | 1.0 | 1.0 | 0.2 | 0.9 | 0.7 | 1.0 | 8.6 | 8.9 | 2.5 | 5.5 | 8 | 8.2 | 2.2 | 4.9 | |||||||||||
28 | 2.5 | 4.6 | 4.5 | 4.2 | 0.1 | 1.0 | 0.8 | 1.0 | 8.7 | 7.6 | 1.4 | 6.8 | 9.7 | 8.5 | 1.9 | 5.4 | |||||||||||
29 | 0.6 | 0.6 | 0.8 | 0.7 | 0.1 | 0.3 | 0.1 | 0.2 | 5.1 | 7.3 | 2.2 | 3.1 | 5.5 | 7.5 | 4.6 | 4.4 | |||||||||||
30 | 0.5 | 0.6 | 1.2 | 1.1 | 0.1 | 0.4 | 0.1 | 0.3 | 8.6 | 6.1 | 2.5 | 3.3 | 8.8 | 7.6 | 3.1 | 2.9 | |||||||||||
31 | 1.0 | 1.2 | 1.6 | 1.7 | 0.1 | 0.5 | 0.2 | 0.4 | 7.5 | 6.4 | 2.7 | 5.8 | 8.1 | 7.8 | 2.2 | 4.5 | |||||||||||
32 | 1.7 | 1.6 | 3.7 | 3.5 | 0.1 | 0.9 | 0.2 | 0.4 | 6.0 | 9.9 | 2.0 | 6.7 | 9.1 | 9.4 | 3.1 | 5.6 |
Dye No. | HPLC1) | HPLC2) | HPLC-MS/MS3) | Dye No. | HPLC1) | HPLC2) | HPLC-MS/MS3) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Recovery/ % | RSD/ % | Recovery/ % | RSD/ % | Recovery/ % | RSD/ % | Recovery/ % | RSD/ % | Recovery/ % | RSD/ % | Recovery/ % | RSD/ % | |||||||
1 | 86.0 | 1.6 | 93.8 | 2.3 | 114.0 | 2.9 | 17 | 103.5 | 0.3 | 97.7 | 0.5 | 114.0 | 1.1 | |||||
2 | 104.7 | 1.1 | 96.8 | 1.1 | 114.2 | 3.9 | 18 | 85.1 | 2.6 | 85.3 | 4.1 | 111.0 | 3.4 | |||||
3 | 85.3 | 1.4 | 85.2 | 5.2 | 108.9 | 3.8 | 19 | 105.3 | 0.8 | 87.6 | 0.5 | 98.9 | 6.0 | |||||
4 | 106.2 | 1.7 | 99.8 | 1.4 | 111.8 | 3.0 | 20 | 114.7 | 2.0 | 97.3 | 4.2 | 103.3 | 5.3 | |||||
5 | 103.9 | 1.2 | 98.6 | 0.5 | 111.9 | 2.6 | 21 | 99.9 | 1.3 | 95.1 | 1.0 | 105.3 | 4.3 | |||||
6 | 87.9 | 1.2 | 92.7 | 1.8 | 105.6 | 1.7 | 22 | 100.3 | 2.9 | 87.2 | 4.5 | 104.4 | 8.4 | |||||
7 | 100.6 | 0.6 | 95.2 | 0.5 | 105.6 | 1.4 | 23 | 93.6 | 2.5 | 86.8 | 0.7 | 95.8 | 4.8 | |||||
8 | 98.2 | 1.4 | 99.7 | 5.7 | 107.9 | 2.6 | 24 | 98.1 | 1.1 | 95.4 | 4.2 | 114.5 | 2.4 | |||||
9 | 97.9 | 1.3 | 94.6 | 1.2 | 106.6 | 1.7 | 25 | 90.9 | 1.3 | 90.2 | 2.4 | 114.9 | 1.4 | |||||
10 | 100.4 | 1.1 | 99.2 | 0.5 | 114.4 | 1.5 | 26 | 101.6 | 2.3 | 99.6 | 0.7 | 106.0 | 7.1 | |||||
11 | 89.1 | 1.6 | 109.4 | 3.4 | 100.0 | 1.2 | 27 | 89.9 | 1.8 | 95.0 | 1.8 | 95.8 | 2.0 | |||||
12 | 85.1 | 0.6 | 103.1 | 4.0 | 103.3 | 3.3 | 28 | 97.0 | 1.9 | 95.9 | 1.0 | 98.4 | 2.1 | |||||
13 | 98.1 | 1.3 | 98.7 | 0.4 | 96.5 | 1.4 | 29 | 93.6 | 3.5 | 97.1 | 1.9 | 106.4 | 5.5 | |||||
14 | 85.6 | 2.2 | 93.2 | 1.2 | 112.7 | 3.8 | 30 | 97.6 | 1.2 | 98.4 | 0.5 | 102.2 | 3.8 | |||||
15 | 101.2 | 2.8 | 98.3 | 0.4 | 95.7 | 5.4 | 31 | 89.8 | 3.9 | 86.5 | 3.8 | 96.6 | 9.8 | |||||
16 | 92.7 | 2.1 | 97.8 | 1.1 | 93.5 | 5.8 | 32 | 93.3 | 2.6 | 91.0 | 2.1 | 82.6 | 5.3 |
Table 7 Spiked recoveries of the 32 dyes analyzed with HPLC and HPLC-MS/MS (n=6)
Dye No. | HPLC1) | HPLC2) | HPLC-MS/MS3) | Dye No. | HPLC1) | HPLC2) | HPLC-MS/MS3) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Recovery/ % | RSD/ % | Recovery/ % | RSD/ % | Recovery/ % | RSD/ % | Recovery/ % | RSD/ % | Recovery/ % | RSD/ % | Recovery/ % | RSD/ % | |||||||
1 | 86.0 | 1.6 | 93.8 | 2.3 | 114.0 | 2.9 | 17 | 103.5 | 0.3 | 97.7 | 0.5 | 114.0 | 1.1 | |||||
2 | 104.7 | 1.1 | 96.8 | 1.1 | 114.2 | 3.9 | 18 | 85.1 | 2.6 | 85.3 | 4.1 | 111.0 | 3.4 | |||||
3 | 85.3 | 1.4 | 85.2 | 5.2 | 108.9 | 3.8 | 19 | 105.3 | 0.8 | 87.6 | 0.5 | 98.9 | 6.0 | |||||
4 | 106.2 | 1.7 | 99.8 | 1.4 | 111.8 | 3.0 | 20 | 114.7 | 2.0 | 97.3 | 4.2 | 103.3 | 5.3 | |||||
5 | 103.9 | 1.2 | 98.6 | 0.5 | 111.9 | 2.6 | 21 | 99.9 | 1.3 | 95.1 | 1.0 | 105.3 | 4.3 | |||||
6 | 87.9 | 1.2 | 92.7 | 1.8 | 105.6 | 1.7 | 22 | 100.3 | 2.9 | 87.2 | 4.5 | 104.4 | 8.4 | |||||
7 | 100.6 | 0.6 | 95.2 | 0.5 | 105.6 | 1.4 | 23 | 93.6 | 2.5 | 86.8 | 0.7 | 95.8 | 4.8 | |||||
8 | 98.2 | 1.4 | 99.7 | 5.7 | 107.9 | 2.6 | 24 | 98.1 | 1.1 | 95.4 | 4.2 | 114.5 | 2.4 | |||||
9 | 97.9 | 1.3 | 94.6 | 1.2 | 106.6 | 1.7 | 25 | 90.9 | 1.3 | 90.2 | 2.4 | 114.9 | 1.4 | |||||
10 | 100.4 | 1.1 | 99.2 | 0.5 | 114.4 | 1.5 | 26 | 101.6 | 2.3 | 99.6 | 0.7 | 106.0 | 7.1 | |||||
11 | 89.1 | 1.6 | 109.4 | 3.4 | 100.0 | 1.2 | 27 | 89.9 | 1.8 | 95.0 | 1.8 | 95.8 | 2.0 | |||||
12 | 85.1 | 0.6 | 103.1 | 4.0 | 103.3 | 3.3 | 28 | 97.0 | 1.9 | 95.9 | 1.0 | 98.4 | 2.1 | |||||
13 | 98.1 | 1.3 | 98.7 | 0.4 | 96.5 | 1.4 | 29 | 93.6 | 3.5 | 97.1 | 1.9 | 106.4 | 5.5 | |||||
14 | 85.6 | 2.2 | 93.2 | 1.2 | 112.7 | 3.8 | 30 | 97.6 | 1.2 | 98.4 | 0.5 | 102.2 | 3.8 | |||||
15 | 101.2 | 2.8 | 98.3 | 0.4 | 95.7 | 5.4 | 31 | 89.8 | 3.9 | 86.5 | 3.8 | 96.6 | 9.8 | |||||
16 | 92.7 | 2.1 | 97.8 | 1.1 | 93.5 | 5.8 | 32 | 93.3 | 2.6 | 91.0 | 2.1 | 82.6 | 5.3 |
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