分光光度法快速测定商品活性染料中活性染料的含量  

Rapid determination of reactive dyes in commercial reactive dyes by spectrophotometry

作　　者：牛晓星 范雪荣[1] 王强[1] NIU Xiao-xing;FAN Xue-rong;WANG Qiang(Key Laboratory of Eco-Textiles of Ministry of Education,Jiangnan University,Wuxi 214122,China)

机构地区：[1]江南大学生态纺织教育部重点实验室

出　　处：《印染》2019年第13期11-15,共5页China Dyeing and Finishing

基　　金：国家重点研发计划(2017YFB0309200)

摘　　要：研究了一种商品活性染料中活性染料有效含量的快捷测定方法。对于单组分活性染料,可通过商品染料和提纯染料的吸光度值计算;对于多组分活性染料,可利用最大吸收波长下染料浓度-吸光度关系的联立方程计算得到。该方法对染料浓度的测试误差在士3%,具有测试准确度高、操作简便、检测成本低等特点。A quick method for the determination of the effective content of reactive dyes in commercial reactive dyes is studied.For one-component reactive dye,the absorbance values of commercial dyes and purified dyes can be calculated;for multi-component reactive dyes,the simultaneous equations of dye concentration-absorbance relationship at the maximum absorption wavelength can be used.The test error of the dye concentration is about±3%,which has the characteristics of high test accuracy,simple operation and low detection cost.

关 键 词：活性染料 分光光度法 Lambert-Beer定律 最大吸收波长-联立方程法 

分 类 号：TS190.2[轻工技术与工程—纺织化学与染整工程]