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１引言石蜡相光度法是近年来发展起来的一种新的固相光度分析法，在痕量分析中得到广泛的应用。本文发现，在一定酸度的盐酸介质中，石蜡能定量吸附ＡｕＣｌ４－与罗丹明Ｓ形成的离子缔合物，金的含量在０－０．８ｍｇ／Ｌ范围内符合比尔定律，从而建立了测定痕量金的新方法。
1 Introduction Paraffin phase spectrophotometry is a new solid phase spectrophotometry developed in recent years, which has been widely used in trace analysis. In this paper, we found that paraffin can quantitatively adsorb the ion-association complex formed between AuCl4- and rhodamine S in a certain acidity hydrochloric acid medium. Beer’s law is obeyed in the range of 0-0.8 mg / L, The new method of gold.