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报道了以甲基红为指示剂、甲醇作溶剂，测定三嗪环的容量分析新方法，其灵敏度与准确度均优于以甲基橙为指示剂的老方法。研究了溶剂及其它因素的影响，找到了合适的指示剂，该方法用于三嗪环测定可获得满意的结果。
A new method for the capacity analysis of triazine ring with methyl red as indicator and methanol as solvent was reported. The sensitivity and accuracy of the new method were superior to the old method using methyl orange as indicator. The effects of solvents and other factors were investigated, and a suitable indicator was found. The method was applied to the determination of triazine ring to get satisfactory results.