摘要
采用液相色谱二极管光谱检测器串联四级杆质谱(LC-PDA-MS/MS)同时快速测定纺织品中的22种有害分散染料。研究设计的氯苯蒸气回流提取法的提取效率是超声波辅助甲醇提取方法的2.3～11倍,采用的1.8μm细粒径液相色谱柱比传统的5μm色谱柱的分析时间缩短了近三分之二,而检测灵敏度至少提高了4倍。通过电喷雾串联质谱鉴别,确认DIN 54231标准中的分散蓝35(b)物质为分散蓝26染料。22种分散染料的测定低限在0.8～5 mg/kg之间,回收率均在86.4%～98.7%之间,相对标准偏差值小于10%。在面料、服装衬里布以及缝纫线和拉链边布等一些辅料中都检测出有害分散染料,检出率较高的是分散黄23和分散橙37/76。
A rapid method was developed to simultaneously determine the 22 harmful disperse dyes in textiles, using liquid chromatography-photodiode array-tandem mass spectrometry （LC-PDA-MS/MS）- The chlorobenzene vapor reflux extraction method investigated in this paper obtained 2.3 - 11 times extraction efficiency higher than the ultrasound-assisted methanol extraction method, and the application of 1.8 μm-column liquid chromatography shortened two thirds of analytical time comparing with the traditional 5 μm packed column, and the detection sensitivities were at least increased by 4 times. Furthermore, the ill-defined substance of disperse blue 35 （b） in DIN 54231 was identified as dye of disperse blue 26 by electrospray tandem mass spectrometry. The method was evaluated with low quantification limits of 0.8 -5 mg/kg for 22 disperse dyes, acceptable recovery of 86.4% -98.7% and good precision of RSD less than 10%. The harmful disperse dyes, with disperse yellow 23 and orange 37/76 of more frequent, were detected in apparel fabric, lining and some textile accesories such as sewing thread and zip fabric.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2011年第1期89-95,共7页
Journal of Textile Research
基金
国家"十一五"科技支撑计划重点项目(2006BAK10B03-3)
质检公益性行业科研专项项目(200910013)
关键词
分散染料
液相色谱-串联质谱
光谱分析
细粒径色谱柱
纺织品
Key words disperse dye
liquid chromatography-tandem mass spectrometry
spectroscopic analysis
sub-2 μm column
textiles
