摘要
研究了水中总汞离子含量的在线测定方法,通过在线富集、消解,并在水溶液中显色的方式建立了总汞含量在线分析装置。利用该装置测得汞含量的相对误差为6.7%,相对标准偏差为8.4%,可以满足在线分析精度要求。汞的线性范围为5～60μg/L,最低检测下限为1μg/L,由于采用了富集-消解-双硫腙/乙醇溶液显色的方式,能够实现对水中总汞含量的在线监测。
The method of on-line measuring total mercury content was studied. Through on-line collection, digestion and developing in dithizone/ethylalcohol solution, an on-line analyzer for mercury content was developed, and a 6.7% relative error and 8.36% relative standard deviation in the measurement can satisfy both on-line analysis and measurement in water because of mercury＇s 5 - 60μg/L linear range and a 1 μg/L detection limit.
出处
《化工自动化及仪表》
CAS
2012年第3期316-319,共4页
Control and Instruments in Chemical Industry
基金
东北电力大学博士基金(BSJXM-201006)
关键词
汞
活性炭
双硫腙/乙醇溶液
在线监测
mercury, active carbon, dithizone/ethylalcohol solution, on-line analysis
