微库仑法测定新疆棉浆粕企业废水中可吸附有机卤素AOX  

Determination of Absorbable Organic Halogens(AOX)in Xinjiang Cotton Pulp Black Liquor Water by using Microcoulometry

作　　者：马莹 段小燕 MA Ying;Duan Xiao-yan(Xinjiang Ecological Environment Monitoring Centre,Urumqi Xinjiang 830011,China)

机构地区：[1]新疆维吾尔自治区生态环境监测总站,新疆乌鲁木齐830011

出　　处：《干旱环境监测》2020年第1期32-34,共3页Arid Environmental Monitoring

摘　　要：建立微库仑滴定法测定水质中可吸附有机卤素AOX的方法,考察3种活性炭柱对于空白的影响。实验结果表明,AOX的检出限为2.19μg/L,相对标准偏差为2.80%,纯水中高、中、低加标回收率在92.5%~107%,新疆棉浆粕企业废水中加标回收率为96.0%~101%。实验室空白也只有新购开封的耶拿原装活性炭小柱能满足标准要求的空白值(<30μg/L)。Determination of absorbable organic halogens(AOX)in Xinjiang cotton pulp black liquor water by using Microcoulometry was established.The developed method showed high relative recoveries for P-Chlorophenol in pure water at different concentrations from 92.5%to 107%and 96.0%to 101%in Xinjiang cotton pulp black liquor water.The detection limits of method was 2.19μg/L,the relative standard deviation was 2.8%.Only the newly-opened Jena original activated carbon columns could meet the demand of system blank value in standard(<30μg/L)

关 键 词：可吸附有机卤素AOX 微库伦法 空白值 新疆棉浆粕企业废水 

分 类 号：X830.2[环境科学与工程—环境工程]