双波长系数倍率分光光度法测定氟系防水剂中的氟离子  

Determination of the Fluoride in the Fluorine-Containing Waterproof Agent with DW-spectrophotometric Coefficient

作　　者：陈红梅[1,2] 步月华[3] 徐钧[4] 魏艳[2] 

机构地区：[1]全国染料标准化技术委员会印染助剂分技术委员会,杭州311215 [2]浙江传化股份有限公司,杭州311215 [3]江苏省丹阳市高级中学 [4]杭州职业技术学院,杭州310018

出　　处：《有机氟工业》2009年第4期51-54,共4页Organo-Fluorine Industry

摘　　要：选择测定波长为568nm,参比波长为470nm,利用氟试剂双波长系数倍率分光光度法进行了氟离子的测定。氟离子含量在0.1～1μg/mL时线性良好,相关系数r2=0.99978。方法的RSD为1.20%,检出限可达0.13μg/mL。The 568nm and the 420nm were selected to be the primary wavelength and the second wavelength selectively. The fluoride was determined by DW -spectrophotometric with the fluoride reagent （ALC）. The method shows good linear relationship in the concentration of 0. 1 - 1 μg/mL with the correlation coefficient of 0. 99978, as well as the good repetition. The detection limit was 0. 25μg/mL. This method is available to determine the fluoride in water.

关 键 词：双波长分光光度法 系数 氟系防水剂 氟离子 

分 类 号：TQ075[化学工程]