摘要
针对亚甲基兰比色法测定循环水中硫化物存在的问题进行了试验,在试验的基础上确定了测定硫化物的最佳条件,方法相对标准偏差不大于2.6%,加标回收率大于95%,满足分析要求。
Tests have been performed based upon the existing problems in measuring the sulfides in cooling water by methylene - blue colorimetric method. Through the tests, the optimum conditions for testing sulfides are determined. The error is no greater than 2.6% as compared with standard and standard recovery rate is greater than 95%, meeting the testing requirements.
出处
《石油化工腐蚀与防护》
CAS
2009年第4期27-29,共3页
Corrosion & Protection In Petrochemical Industry
关键词
亚甲基兰
硫化物
测定
methylene blue, sulfide, testing