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介绍了用淀粉比色法测定溶液中1—3PPm范围内二氧化氯的含量。其直线回归方程为y=0.2688x-0.0348,相关系数λ=0.9974,变异系数为3.7％～5.6％,回收率为99.3％～105.9％。
The content of chlorine dioxide in the range of 1-3PPm measured by starch colorimetry is introduced. The linear regression equation was y = 0.2688x-0.0348, the correlation coefficient λ = 0.9974, the coefficient of variation was 3.7% ~ 5.6% and the recovery rate was 99.3% ~ 105.9%.