皮革禁用偶氮染料测试不确定度的分析与评定  

Analysis and Uncertainty Evaluation for the Determination of Banned Azo Dyes in Leather

作　　者：赵振伟[1,2] 何颖瑜[1,2] 杨锋波[1,2] 马伟娟[1,2] 

机构地区：[1]广州质量监督检测研究院,广东广州510860 [2]国家皮革制品质量监督检验中心(广州),广东广州510860

出　　处：《西部皮革》2016年第7期50-54,共5页West Leather

摘　　要：本文对皮革禁用偶氮染料测试过程中不确定度影响因素进行分析,建立皮革中禁用偶氮染料(高效液相色谱法)测试过程中不确定度的评定数学模型。结果表明:以高效液相色谱法测定皮革中禁用偶氮染料的含量时,不确定度主要来源为标准溶液配制过程、样品的称量过程、实验回收率和样品定容过程。以一块黑色皮革阳性样品为实验对象,其联苯胺检测结果为33.68 mg/kg,合成不确定度为0.59 mg/kg,扩展不确定度为1.18 mg/kg。The mathematical model of uncertainty was established by analyzing uncertainty factors during testing banned azo dyes in leather（HPLC method）. The results showed that The uncertainty was mainly caused by the preparation process of standard solution, the sample weighting process, the recovery rate of the test and the constant volume process during the test. A piece of black eather was tested.The content of Benzidine in the sample is 33.68 mg/kg, the relative standard uncertainty is 0.59 mg/kg, the expanded uncertainty is 1.18 mg/kg.

关 键 词：禁用偶氮染料 高效液相色谱法 不确定度 

分 类 号：TS57[轻工技术与工程—皮革化学与工程]