在线反应柱——流动注射分光光度法快速测定水中硫化物的含量  

Rapid determination of sulfide in water by flow injection spectrophotometry with on-line reaction column

作　　者：郭尊礼 王玲燕 朱瑞龙 GUO Zun-li;WANG Ling-yan;ZHU Rui-long(Shaanxi Yanchang Peroleum(Group)Co.,Ltd.,Xi’an 710075,China;Shaanxi Chemical Industry Research Institute Co.,Ltd.,Xi’an 710054,China;Shaanxi Industry Watertreatment Research Centre of Engineering&Technology,Xi’an 710054,China)

机构地区：[1]陕西延长石油(集团)有限责任公司,陕西西安710075 [2]陕西化工研究院有限公司,陕西西安710054 [3]陕西省工业水处理工程技术研究中心,陕西西安710054

出　　处：《应用化工》2023年第7期2250-2253,共4页Applied Chemical Industry

基　　金：陕西省重点科技创新团队计划-工业水处理工程技术创新团队(2015KCT-22)。

摘　　要：建立了一种在线反应柱——流动注射分光光度法测定水中硫化物含量的方法,该方法引入在线柱,在线柱的填料是能够饱和吸附Fe^(3+)的马来酸酐-丙烯酰胺共聚物颗粒。实验考察了在线柱的长度、反应时间、溶液流速、共存物质的影响,确定了实验最佳条件。结果表明,硫化物浓度在0~10 mg/L范围内与吸光度值呈现良好的线性关系,检出限为0.032 mg/L,相对标准偏差RSD为0.75%。An on-line reaction column flow injection spectrophotometry was established for determination of sulfide in industrial circulating water,the method determined sulfide in industrial waste water by methylene blue flow injection spectrophotometry.The on-line column was packed for maleic anhydride-acrylamide copolymer particles which was adsorpted saturated Fe^(3+).The length of on-line column,reaction time,flow rate of solution and coexisting substances were investigated,and the optimum conditions were determined.The result showed that the analytical curve was linear in the concentration range from 0 mg/L to 10 mg/L with the detection limit of 0.032 mg/L,the relative standard deviation(RSD,n=6)was 0.75%.

关 键 词：在线反应柱 流动注射 分光光度法 硫化物 

分 类 号：TQ014[化学工程] O657.3[理学—分析化学] TE19[理学—化学]