Chinese Journal of Chromatography ›› 2024, Vol. 42 ›› Issue (1): 99-105.DOI: 10.3724/SP.J.1123.2023.09008
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ZHUO Wenshan1, TANG Jianfeng1, LIANG Jinsheng2, CAO Rihui3,*()
Received:
2023-09-15
Online:
2024-01-08
Published:
2024-01-10
Supported by:
CLC Number:
ZHUO Wenshan, TANG Jianfeng, LIANG Jinsheng, CAO Rihui. Simultaneous determination of four N-lauryl amino acid surfactants in facial cleansers by high performance liquid chromatography-ultraviolet detection[J]. Chinese Journal of Chromatography, 2024, 42(1): 99-105.
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URL: https://www.chrom-china.com/EN/10.3724/SP.J.1123.2023.09008
Compound | Linear range/(mg/L) | Linear equation | r | LOD/(mg/L) | LOQ/(mg/L) |
---|---|---|---|---|---|
LG | 2.0-800.0 | Y=3.23778717X+5.4264289 | 0.9996 | 0.42 | 1.40 |
LC | 2.0-800.0 | Y=3.0579659X+3.0810632 | 0.9995 | 0.49 | 1.63 |
LA | 2.0-800.0 | Y=3.83648389X+5.4939317 | 0.9997 | 0.38 | 1.27 |
LS | 2.0-800.0 | Y=12.1006233X+5.2556411 | 0.9997 | 0.17 | 0.57 |
Table 1 Linear ranges, linear equations, correlation coefficients (r), limits of detections (LODs) and limits of quantification (LOQs) of the four N-lauryl amino acid (NLAAs)
Compound | Linear range/(mg/L) | Linear equation | r | LOD/(mg/L) | LOQ/(mg/L) |
---|---|---|---|---|---|
LG | 2.0-800.0 | Y=3.23778717X+5.4264289 | 0.9996 | 0.42 | 1.40 |
LC | 2.0-800.0 | Y=3.0579659X+3.0810632 | 0.9995 | 0.49 | 1.63 |
LA | 2.0-800.0 | Y=3.83648389X+5.4939317 | 0.9997 | 0.38 | 1.27 |
LS | 2.0-800.0 | Y=12.1006233X+5.2556411 | 0.9997 | 0.17 | 0.57 |
Compound | Added/ (mg/g) | S1 | S2 | S3 | S4 | S5 | ||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Found/ (mg/g) | Recovery/ % | Found/ (mg/g) | Recovery/ % | Found/ (mg/g) | Recovery/ % | Found/ (mg/g) | Recovery/ % | Found/ (mg/g) | Recovery/ % | |||||||||||||||||||||||
LG | 0 | 2.55 | / | 25.44 | / | - | / | - | / | 37.76 | / | |||||||||||||||||||||
0.60 | 3.09 | 98.0 | 26.01 | 99.9 | 0.57 | 95.3 | 0.59 | 99.0 | 38.32 | 99.9 | ||||||||||||||||||||||
4.50 | 7.21 | 102.2 | 30.78 | 102.8 | 4.83 | 102.0 | 4.83 | 107.3 | 43.02 | 101.8 | ||||||||||||||||||||||
15.00 | 18.27 | 104.1 | 41.33 | 102.2 | 15.54 | 103.6 | 15.86 | 105.7 | 54.71 | 103.7 | ||||||||||||||||||||||
24.00 | 26.02 | 98.0 | 48.75 | 98.6 | 23.09 | 96.2 | 23.71 | 98.8 | 61.76 | 100.0 | ||||||||||||||||||||||
LC | 0 | 62.03 | / | 62.39 | / | 68.09 | / | 75.55 | / | 59.25 | / | |||||||||||||||||||||
0.60 | 62.63 | 100.0 | 62.93 | 99.9 | 68.83 | 100.2 | 76.30 | 100.2 | 59.91 | 100.1 | ||||||||||||||||||||||
4.50 | 68.13 | 102.4 | 68.56 | 102.5 | 74.40 | 102.5 | 80.85 | 101.0 | 64.90 | 101.8 | ||||||||||||||||||||||
15.00 | 78.88 | 102.4 | 77.93 | 100.7 | 91.28 | 102.1 | 91.09 | 100.6 | 76.55 | 103.1 | ||||||||||||||||||||||
24.00 | 85.60 | 99.5 | 84.83 | 98.2 | 96.24 | 97.8 | 96.76 | 97.2 | 83.17 | 99.9 | ||||||||||||||||||||||
LA | 0 | - | / | - | / | - | / | 9.31 | / | - | / | |||||||||||||||||||||
0.60 | 0.64 | 107.3 | 0.64 | 106.3 | 0.63 | 104.5 | 9.92 | 100.1 | 0.62 | 103.8 | ||||||||||||||||||||||
4.50 | 4.62 | 102.7 | 4.41 | 98.0 | 4.55 | 101.0 | 14.64 | 106.0 | 4.68 | 104.0 | ||||||||||||||||||||||
15.00 | 16.10 | 107.3 | 16.11 | 107.4 | 16.11 | 107.4 | 25.65 | 105.5 | 15.72 | 104.8 | ||||||||||||||||||||||
24.00 | 23.83 | 99.3 | 23.93 | 99.7 | 23.69 | 98.7 | 33.08 | 99.3 | 23.30 | 97.1 | ||||||||||||||||||||||
LS | 0 | - | / | - | / | - | / | - | / | - | / | |||||||||||||||||||||
0.60 | 0.60 | 99.8 | 0.60 | 100.3 | 0.60 | 99.5 | 0.61 | 101.8 | 0.62 | 103.8 | ||||||||||||||||||||||
4.50 | 4.42 | 98.3 | 4.40 | 97.7 | 4.44 | 98.7 | 4.41 | 98.0 | 4.46 | 99.0 | ||||||||||||||||||||||
15.00 | 15.29 | 101.9 | 15.27 | 101.8 | 15.33 | 102.2 | 15.17 | 101.1 | 15.20 | 101.3 | ||||||||||||||||||||||
24.00 | 22.99 | 95.8 | 22.87 | 95.3 | 22.75 | 94.8 | 22.82 | 95.1 | 22.63 | 94.3 |
Table 2 Contents and spiked recoveries of the four NLAAs in real samples
Compound | Added/ (mg/g) | S1 | S2 | S3 | S4 | S5 | ||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Found/ (mg/g) | Recovery/ % | Found/ (mg/g) | Recovery/ % | Found/ (mg/g) | Recovery/ % | Found/ (mg/g) | Recovery/ % | Found/ (mg/g) | Recovery/ % | |||||||||||||||||||||||
LG | 0 | 2.55 | / | 25.44 | / | - | / | - | / | 37.76 | / | |||||||||||||||||||||
0.60 | 3.09 | 98.0 | 26.01 | 99.9 | 0.57 | 95.3 | 0.59 | 99.0 | 38.32 | 99.9 | ||||||||||||||||||||||
4.50 | 7.21 | 102.2 | 30.78 | 102.8 | 4.83 | 102.0 | 4.83 | 107.3 | 43.02 | 101.8 | ||||||||||||||||||||||
15.00 | 18.27 | 104.1 | 41.33 | 102.2 | 15.54 | 103.6 | 15.86 | 105.7 | 54.71 | 103.7 | ||||||||||||||||||||||
24.00 | 26.02 | 98.0 | 48.75 | 98.6 | 23.09 | 96.2 | 23.71 | 98.8 | 61.76 | 100.0 | ||||||||||||||||||||||
LC | 0 | 62.03 | / | 62.39 | / | 68.09 | / | 75.55 | / | 59.25 | / | |||||||||||||||||||||
0.60 | 62.63 | 100.0 | 62.93 | 99.9 | 68.83 | 100.2 | 76.30 | 100.2 | 59.91 | 100.1 | ||||||||||||||||||||||
4.50 | 68.13 | 102.4 | 68.56 | 102.5 | 74.40 | 102.5 | 80.85 | 101.0 | 64.90 | 101.8 | ||||||||||||||||||||||
15.00 | 78.88 | 102.4 | 77.93 | 100.7 | 91.28 | 102.1 | 91.09 | 100.6 | 76.55 | 103.1 | ||||||||||||||||||||||
24.00 | 85.60 | 99.5 | 84.83 | 98.2 | 96.24 | 97.8 | 96.76 | 97.2 | 83.17 | 99.9 | ||||||||||||||||||||||
LA | 0 | - | / | - | / | - | / | 9.31 | / | - | / | |||||||||||||||||||||
0.60 | 0.64 | 107.3 | 0.64 | 106.3 | 0.63 | 104.5 | 9.92 | 100.1 | 0.62 | 103.8 | ||||||||||||||||||||||
4.50 | 4.62 | 102.7 | 4.41 | 98.0 | 4.55 | 101.0 | 14.64 | 106.0 | 4.68 | 104.0 | ||||||||||||||||||||||
15.00 | 16.10 | 107.3 | 16.11 | 107.4 | 16.11 | 107.4 | 25.65 | 105.5 | 15.72 | 104.8 | ||||||||||||||||||||||
24.00 | 23.83 | 99.3 | 23.93 | 99.7 | 23.69 | 98.7 | 33.08 | 99.3 | 23.30 | 97.1 | ||||||||||||||||||||||
LS | 0 | - | / | - | / | - | / | - | / | - | / | |||||||||||||||||||||
0.60 | 0.60 | 99.8 | 0.60 | 100.3 | 0.60 | 99.5 | 0.61 | 101.8 | 0.62 | 103.8 | ||||||||||||||||||||||
4.50 | 4.42 | 98.3 | 4.40 | 97.7 | 4.44 | 98.7 | 4.41 | 98.0 | 4.46 | 99.0 | ||||||||||||||||||||||
15.00 | 15.29 | 101.9 | 15.27 | 101.8 | 15.33 | 102.2 | 15.17 | 101.1 | 15.20 | 101.3 | ||||||||||||||||||||||
24.00 | 22.99 | 95.8 | 22.87 | 95.3 | 22.75 | 94.8 | 22.82 | 95.1 | 22.63 | 94.3 |
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