Determination of trichloroacetic acid content in water by ion chromatography.The uncertainty of the determination of trichloroacetic acid was evaluated from the four aspects of Repeatability introduction of the sample,the standard material itself,the working curve fitting,and the main instrument.The results showed that the uncertainty introduced by working curve fitting was the most significant,followed by the standard substance itself and the main instruments.When the trichloroacetic acid content in the sample was 44.0547 μg/L,the expanded uncertainty was 0.1234 μg/L,k=2.
关键词
离子色谱法/饮用水/三氯乙酸/不确定度
Key words
ion chromatography/drinking water/trichloroacetic acid/uncertainty
维普
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