| GC-MS与HPLC/DAD联用对纺织品中4-氨基偶氮苯的测定 |
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| 引用本文： | 廖梅东,杭义萍.GC-MS与HPLC/DAD联用对纺织品中4-氨基偶氮苯的测定[J].分析测试学报,2010,29(8). |
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| 作者姓名： | 廖梅东 杭义萍 |
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| 作者单位： | 1. 华南理工大学,化学与化工学院,广东,广州,510640;天祥(广州)技术服务有限公司,广东,广州,510663
2. 华南理工大学,化学与化工学院,广东,广州,510640 |
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| 摘 要： | 从化学反应条件的控制及气相色谱-质谱(GC-MS)和高效液相色谱/二极管阵列检测器(HPLC/DAD)联用方面,探讨了4-氨基偶氮苯的检测方法。实验表明,在样品中加入氢氧化钠,样品中的4-氨基偶氮苯和新鲜配制的连二亚硫酸钠发生反应,使4-氨基偶氮苯的碳碳双键断裂。释放的4-氨基偶氮苯在氯化钠存在的混合物中与叔丁基甲醚进行液液萃取。取叔丁基甲醚层进行分析,通过GC-MS的保留时间及特征离子碎片并结合HPLC/DAD紫外法对4-氨基偶氮苯进行定性和定量分析。4-氨基偶氮苯在2.5~30 mg/kg范围内呈良好的线性关系,其线性方程为:y=91.23x+5.272,相关系数r=1.000,检出限为3.20 mg/kg,平均回收率不低于90%。
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| 关 键 词： | 纺织品 4-氨基偶氮苯 |
Determination of 4-Aminoazobenzene in Textile by GC-MS and HPLC/DAD |
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| LIAO Mei-dong,HANG Yi-ping.Determination of 4-Aminoazobenzene in Textile by GC-MS and HPLC/DAD[J].Journal of Instrumental Analysis,2010,29(8). |
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| Authors: | LIAO Mei-dong HANG Yi-ping |
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| Institution: | LIAO Mei-dong1,2,HANG Yi-ping1(1.College of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,China,2.Intertek Testing Services Guangzhou Limited,Guangzhou 510663,China) |
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| Abstract: | A method for the determination of 4-aminoazobenzene was developed with two aspects of the control of chemical reaction conditions and the combination of GC-MS and HPLC/DAD.The results showed,in the presence of sodium hydroxide,4-aminoazobenzene could react with fresh sodium dithionite solution,and broke the carbon-carbon double bond of 4-aminoazobenzene.The prepare time of sodium dithionite solution should be less than 3 hours to ensure its reductive.The product of 4-aminoazobenzene was extracted with t-but... |
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| Keywords: | GC-MS HPLC/DAD |
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