论文部分内容阅读
本文报告了一个高灵敏度地、高选择性地检出和测定痕量汞的方法。采用溶剂萃取与环炉联用的方法,把溶液中痕量汞离子,先用双硫腙一四氯化碳溶液萃取,后用6N盐酸溶液反萃取以便进行分离和富集,再在环炉上用碘化亚铜进行汞的检出和环比色测定。研究了在环炉上进行此一反应的合适条件。此法检出限量为0.15毫微克汞(在内径为16毫米的辅环上操作),定量范围1.5毫微克-1.5微克。除未曾对P。2+和P。4+离子进行试验外,其它阳离子存在下均无干拢。本法曾被用于检出和测定水中痕量汞,结果令人满忌。
This article reports a highly sensitive and highly selective method for the detection and determination of trace mercury. Using solvent extraction and ring furnace method, the solution of trace mercury ions, first with dithizone solution of carbon tetrachloride extraction, followed by 6N hydrochloric acid solution back extraction for separation and enrichment, and then in the ring furnace On copper iodide for mercury detection and ring colorimetric determination. The suitable conditions for carrying out this reaction on a ring furnace were investigated. This method detects a limit of 0.15 ng of mercury (operating on a 16 mm id core) with a quantitation range of 1.5 ng to 1.5 μg. Except for P. 2+ and P. 4 + ions were tested, there is no other cations in the dry together. This Law has been used to detect and measure trace amounts of mercury in water, the result is full of bogey.