摘要
针对亚甲蓝分光光度法GB7494-87测定地表水中阴离子表面活性剂存在的操作烦琐、试剂消耗量大等缺点进行两点创新改进,并与国标方法进行比对分析,结果表明,改进后的方法简化了操作步骤、减少了试剂用量,具有快速、便捷、环保的优点,同时线性关系良好,精密度与准确度测定结果与改进前相比有一定提高。
The spectrophotometric method using methylene blue for anionic surfactants in surface water GB7494-87 has shortcomings of cumbersome operation and reagent consumption of large and so on.One made two new improvements in view of the shortcomings and with the national standard method to compare.Analysis results showed that the improved method simplified the operation steps and reduced the reagent consumption to be rapid,convenient and environmentally friendly.Simultaneously,the proposed method had a better linear relationship,and the precision and accuracy determination results have a certain increase than before.
出处
《实验科学与技术》
2011年第2期51-53,共3页
Experiment Science and Technology
