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在40％乙醇—0．06mol／L（pH＝1．22）硝酸体系中，氯可产生一灵敏的单峰极谱波，峰电位为＋0．45V（对银片电极），线性范围为0．01－5μg／ml，用示波极谱法测定茶叶中氯，兼具灵敏、准确、快速、简便、选择性好的优点，可用于茶叶样品中氯的定量测定。
In 40% ethanol-0.06 mol / L (pH = 1.22) nitric acid system, chlorine produced a sensitive unimodal polarographic wave with a peak potential of +0.45 V (for silver electrode) with a linear range of 0 .01-5μg / ml, the oscillopolarographic determination of chlorine in tea, both sensitive, accurate, fast, simple, good selectivity, can be used for quantitative determination of chlorine in tea samples.