蒸馏法测定废水中的硫化物  

Determination of Sulfides in Wastewater by Distillation Method

作　　者：王芳 Wang Fang(Taiyuan Urban Drainage Management Center,Taiyuan Shanxi 030000,China)

机构地区：[1]太原市城市排水管理中心,山西太原030000

出　　处：《山西化工》2025年第2期91-92,175,共3页Shanxi Chemical Industry

摘　　要：硫化物对环境和人体都会产生很大危害,GB/T 16489-1996方法中样品需要进行酸化-吹气处理,该过程复杂且不好控制。本文使用了“酸化-蒸馏-吸收”的前处理方法,对已知浓度的标准样品和实际污水厂水样进行硫化物的测定,结果准确度和精密度均满足方法要求,加标回收率也满足检测方法要求,该方法操作相对简单,所用仪器均为实验室常规装置,实用性相对更强。Sulfides pose significant hazards to both the environment and human health.In the GB/T 16489-1996 method,samples require acidification blowing treatment,which is complex and difficult to control.This article uses the pre-treatment method of"acidification distillation absorption"to determine sulfides in standard samples with known concentrations and actual sewage plant water samples,the accuracy and precision of the results meet the requirements of the method,and the spiked recovery rate also meets the requirements of the detection method.The operation of this method is relatively simple,and the instruments used are all conventional laboratory devices,making it more practical.

关 键 词：蒸馏 硫化物 精密度 准确度 加标回收率 

分 类 号：X832[环境科学与工程—环境工程]