ICP-MS法测定聚酯纤维中TiO_2含量  

DETERMINATION OF TiO_2 CONTENT IN POLYESTER FIBER BY ICP-MS

作　　者：花金龙[1] 姜逊[1] 张玉莲[1] 黄勇[1] 岑良荧 

机构地区：[1]国家纺织品服装产品质量监督检验中心,广州510220

出　　处：《化学分析计量》2011年第2期30-32,共3页Chemical Analysis And Meterage

基　　金：国家质检总局科技计划项目(2008QK266)

摘　　要：采用湿法和微波法对聚酯纤维样品进行消解,利用电感耦合等离子体质谱联用仪(ICP-MS)对样品中TiO2含量进行了测定,得到湿法消解样品测定值2 857.46μg/g(相对标准偏差为1.08%),微波消解样品测定值2 599.21μg/g(相对标准偏差为2.76%)。分别测定了两种消解方法的检出限,湿法消解检出限为4.0μg/g,微波消解检出限为9.5μg/g。进行了加标回收试验,湿法消解加标回收率范围84.82%～98.57%,平均回收率为94.20%;微波消解加标回收率范围82.04%～104.18%,平均回收率为87.76%。通过比较发现,湿法消解更有利于聚酯纤维样品的消解。The polyester samples were digested by wet and microwave methods, and the results of sample reproducibility tested by ICP - MS were obtained. Measured values of wet digestion sample was 2857.46 μg/g （ RSD was 1.08% ） , and that of microwave digestion sample was 2 599.21 μg/g （RSD was 2.76% ）. The detection limits of the two methods were obtained, the detection limit of wet digestion was 4.0 μg/g, and that of microwave digestion was 9.5 μg/g. The spiked recovery testing was carried out, the range of wet method was 84.82% -98.57% （ average value was 94.20% ） , and that of microwave method was 82.04% - 104.18% （ average value was 87.76% ）. By comparison, the wet digestion method is more beneficial to digest the polyester samples.

关 键 词：聚酯纤维 二氧化钛 湿法消解 微波消解 

分 类 号：O657.31[理学—分析化学]