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循环水中硫化物测定方法可靠性研究 被引量:2

Study on Reliability of Testing Method for Sulfides in Cooling Water
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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.
作者 刘群
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
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