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采用 pH 指示剂吸收度比值法测定醋酸钠平衡液中醋酸钠的含量,平均回收率为99.71%,变异系数0.44%,此法简便,快速,准确。
The sodium acetate content in the sodium acetate balance liquid was determined by the ratio of pH indicator absorbance. The average recovery was 99.71% and the coefficient of variation was 0.44%. The method was simple, rapid and accurate.