引用本文:蒋晶,甘杰,皇甫晓东,唐婉,刘静,李昕林,全继平.水中重金属锑在线自动监测技术在湘江上游典型区域水环境预警中的应用[J].环境监控与预警,2023,(6):24-28
JIANG Jing,GAN Jie,HUANGFU Xiaodong,TANG Wan,LIU Jing,LI Xinlin<,QUAN Jiping.Application of Online Automatic Monitoring Technology for Heavy Metals (Antimony) in Water for Water Environmental Forewarning in Typical Upstream Areas of Xiangjiang River[J].Environmental Monitoring and Forewarning,2023,(6):24-28
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水中重金属锑在线自动监测技术在湘江上游典型区域水环境预警中的应用
蒋晶1,甘杰1*,皇甫晓东1,唐婉1,刘静2,李昕林1,全继平3
1. 湖南省永州生态环境监测中心,湖南 永州 425000;2. 湖南省长沙生态环境监测中心,湖南 长沙 410000;3. 力合科技(湖南)股份有限公司,湖南 长沙 410000
摘要:
锑(Sb)是湘江上游部分区域的特征重金属污染因子,为精准助力Sb污染预警与防控,基于2-(5-溴-2-吡啶偶氮)-5-二乙氨基酚(5-Br-PADAP)分光光度法,采用优化的在线自动监测仪自动测定地表水中的Sb。测定结果表明,测试范围为0~0.10 mg/L,检出限≤1 μg/L,相对误差≤±10%,相对标准偏差≤5%,实际水样加标回收率范围为88.2% ~104%。该方法适用于地表水中Sb的自动在线监测,可为环境管理部门对水中Sb等重金属的污染预警、溯源、防控等环境决策提供准确依据。
关键词:    分光光度法  在线自动监测  地表水  预警
DOI:10.3969/j.issn.1674-6732.2023.06.004
分类号:X832;X835
基金项目:国家环境保护重金属污染监测重点实验室开发基金项目(SKLMHM202221)
Application of Online Automatic Monitoring Technology for Heavy Metals (Antimony) in Water for Water Environmental Forewarning in Typical Upstream Areas of Xiangjiang River
JIANG Jing1, GAN Jie1*, HUANGFU Xiaodong1, TANG Wan1, LIU Jing2, LI Xinlin1, QUAN Jiping3
1. Hunan Yongzhou Ecological Environmental Monitoring Center, Yongzhou, Hunan 425000, China;2. Hunan Changsha Ecological Environmental Monitoring Center, Changsha, Hunan 410000, China; 3. Lihe Technology(Hunan) Co.Ltd., Changsha, Hunan 410000, China
Abstract:
Antimony is a characteristic pollution factor in Yongzhou area in the upper reaches of Xiangjiang River. The online automatic monitor was used to accurately determine the content of antimony in surface water is of great significance for accurate antimony pollution warning and prevention. Based on the 5-BR-PADAP spectrophotometer,antimony in surface water was automatically determined by an optimized online automatic monitor. The results showed that the test range was 0~0.10 mg/L,the detection limit was less than 1 μg/L, the relative error was ±10%, the relative standard deviation was less than 5%, the actual water sample recovery range was 88.2%~104%,which was suitable for automatic online monitoring of trace Sb in surface water, and had been successfully applied in practical monitoring. The continuous accurate, online automatic and real time monitoring tracing of antimony in surface water can be realized through the early warning response verification,which can provide accurate basis for environmental management departments to make timely environmental decisions such as water pollution early warning, traceability, prevention and control.
Key words:  Antimony  Spectrophtometer  On line automatic monitoring  Surface water  Forewarning