基于阳离子型金属有机骨架混合基质膜的分散固相萃取-超高效液相色谱-串联质谱法测定水中7种苯氧羧酸类除草剂

纪雪峰, 李爽, 吴阁格, 赵琳, 马继平

Determination of seven phenoxy acid herbicides in water by dispersive solid phase extraction-ultra performance liquid chromatography-tandem mass spectrometry based on cationic metal-organic framework mixed matrix membrane

JI Xuefeng, LI Shuang, WU Gege, ZHAO Lin, MA Jiping

表4 实际水样中7种苯氧羧酸类除草剂的分析结果(n=3)

Table 4 Analytical results of the seven phenoxy acid herbicides in real water samples (n=3)

Analyte Spiked/(μg/L) Tap water Reservoir water Found/(μg/L) Recovery/% RSD/% Found/(μg/L) Recovery/% RSD/% 4-CPA 0 ND ND 0.01 0.008 80 3.5 0.007 72 4.1 0.05 0.043 86 0.6 0.046 92 2.6 0.2 0.178 89 8.3 0.171 86 4.9 PB 0 ND ND 0.01 0.009 90 5.5 0.008 80 2.4 0.05 0.044 88 2.3 0.045 90 4.1 0.2 0.182 91 2.5 0.179 90 6.5 2,4-D 0 ND ND 0.01 0.008 80 11.3 0.009 90 7.6 0.05 0.042 84 3.1 0.047 94 2.9 0.2 0.179 90 2.3 0.168 84 1.5 MCPA 0 ND ND 0.01 0.008 80 9.5 0.009 90 5.4 0.05 0.043 86 2.8 0.043 86 3.3 0.2 0.167 84 4.4 0.158 79 4.2 2,4,5-T 0 ND ND 0.01 0.008 80 8.1 0.008 80 11.5 0.05 0.046 92 2.4 0.045 90 3.2 0.2 0.175 88 4.6 0.178 89 5.1 2,4-DB` 0 ND ND 0.01 0.010 102 6.2 0.011 110 7.5 0.05 0.045 90 6.4 0.063 126 10.4 0.2 0.166 83 9.6 0.214 107 6.6 2,4,5-TP 0 ND 0.004 0.01 0.009 90 0.7 0.013 90 11.0 0.05 0.047 94 8.1 0.047 86 9.1 0.2 0.176 88 3.3 0.153 75 6.0