瓶级PET切片乙醛含量测试的不确定度评定  

Evaluation of uncertainty of measuring acetaldehyde content of bottle grade PET chips

作　　者：陈锦国[1] 韩春艳[1] 李红华[1] 

机构地区：[1]仪征化纤股份有限公司瓶片生产中心,江苏仪征211900

出　　处：《聚酯工业》2011年第3期16-19,共4页Polyester Industry

摘　　要：对用顶空气相色谱法测试瓶级PET切片中乙醛含量的不确定度进行了评定,结果表明,定期用乙醛标准溶液对外标法标准曲线进行标定,严格样品测试的操作细节,可以达到减少不确定度的目的。The uncertainty of measuring acetaldehyde content of bottle grade PET chips with headspace gas chromatography was evaluated.The results showed that the uncertainty of a measurement for this method can be reduced by calibrating the external standard method standard curve periodically with acetalsehyde standard solution and controlling the sample operation details strictly.

关 键 词：瓶级PET切片 乙醛 不确定度 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]