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环炉法是一种能进行现场监测的简便快速分析方法。Thabet等曾研究了以盐酸羟胺还原Hg~(2+)成元素汞的环炉比色法,但灵敏度和选择性都不很高。笔者曾报告了以溶剂萃取富集、用四碘汞铜环比色测定水中痕量汞的方法,灵敏度较高,但冲洗液对环炉柱体腐蚀较甚,需要改进。 West等研究的“不渗透栅栏环技
The ring furnace method is a quick and easy method for on-site monitoring. Thabet et al. Studied the ring-ring colorimetric method of reducing Hg2 + into elemental mercury with hydroxylamine hydrochloride, but the sensitivity and selectivity were not very high. The author has reported the method of enrichment by solvent extraction and the determination of trace mercury in water by four iodine-mercury-copper ring colorimetry with high sensitivity. However, the corrosion of the ring furnace cylinder by the rinse liquid is rather serious and needs improvement. West and other research "impervious fence ring technology