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根据吐温８０ＫＯＨ化学发光体系中Ａｕ（Ⅲ）和Ｏｓ（Ⅳ）化学发光动力学性质上的差异，提出了同时测定痕量Ａｕ（Ⅲ）和Ｏｓ（Ⅳ）的时间分辨化学发光分析法。方法的检测限Ａｕ（Ⅲ）为１１×１０－９ｇ／ｍｌ，Ｏｓ（Ⅳ）为１０×１０－８ｇ／ｍｌ；线性范围Ａｕ（Ⅲ）为１０×１０－８～１０×１０－５ｇ／ｍｌ，Ｏｓ（Ⅳ）为１０×１０－７～１０×１０－６ｇ／ｍｌ。方法的选择性好，用于贵金属冶金物料中Ａｕ（Ⅲ）和Ｏｓ（Ⅳ）的同时测定，结果令人满意。
According to the difference of chemiluminescence properties of Au (Ⅲ) and Os (Ⅳ) in TWEKKOH chemiluminescence system, simultaneous determination of trace amounts of Au (Ⅲ) and Os (Ⅳ) by time-resolved chemiluminescence law. The detection limit of Au (Ⅲ) was 11 × 10-9g / ml and Os (Ⅳ) was 1.0 × 10-8g / ml. The linear range of Au (Ⅲ) was 10 × 10-8 ~ 1 0 × 10-5g / ml, Os (Ⅳ) was 1 0 × 10-7 ~ 1 0 × 10-6g / ml. The method has good selectivity and is used for simultaneous determination of Au (Ⅲ) and Os (Ⅳ) in precious metal metallurgy materials. The results are satisfactory.