Mercury (II) formeda colour complex with rhodamine 6G and potassium iodide in the presence of arabic gum in a medium of 0.4-1.6 N-H3PO4. Beer's law was obeyed for 1-6µg/25m1 of mercury. The apparent molar absorptivity was 1.7·105 1·mol-1. cm-1.The Sandell sensitivity was 1.8·105/µg/cm2.The complex is stable in three hours at 15-25℃.
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何应律,王茀鹏,赵中一,胡超涌,1985,罗丹明6G光度法测定矿石中微量汞[J].岩石矿物学杂志,4(2):153~155.,1985,Spectrophotometric Determination of Mercury (II) in Ores With Rhodamine 6 G[J]. Acta Petrologica et Mineralogica,4(2):153~155.
