电位滴定法和反滴定法测定烯烃含量的比较

Contrast of Electrolytic Titration and Nverse Titration for Measuring Alkene

比较了电位滴定法和反滴定法测定烯烃含量的准确性。结果表明,在所测定的质量分数范围内电位滴定法的相对误差为2%~10%;反滴定法的相对误差为-4.5%~8.5%。烯烃的质量分数在2%~10%之间时,电位滴定法比反滴定法的测量结果更加准确,相对误差约为2%~3%;烯烃的质量分数在0.040%~0.62%之间时,反滴定法比电位滴定法的测量结果更加准确,相对误差约为-3.5%^-4.5%。

The electrolytic titration method was compared w：th the inverse titration method in this paper for the accuracy of the measuring alkene. The results showed that relative error of the electrolytic titration and the inverse titration was 2 % - 10 % and - 4.5 % - 8.5 % respectively within measured concentration. The electrolytic titration method was more accurately than the inverse titration method for 2 % - 10 % of alkene and the inverse titration method was more accurately for 0.62 % - 0. 040 % of alkene and relative error was 2 - 3 % and - 4.5 - 3.5 % respectively.