CAJ | 학술논문

对离子色谱法和比色法测定饮用水中三氯乙酸的效果进行了比较研究.结果表明,离子色谱法测定三氯乙酸的检测限为4.8μg/L,线性范围为0.1～10mg/L,加标回收率在98.7%～101%之间,相对标准偏差小于2%;比色法测定三氯乙酸检测限为80μg/L,线性范围为0.25～5mg/L,加标回收率在97.3%～104%之间,相对标准偏差小于3%.配对t检验结果表明,离子色谱法和比色法的结果没有显著性差异,两种方法均可作为饮用水中三氯乙酸的测定方法.
대리자색보법화비색법측정음용수중삼록을산적효과진행료비교연구.결과표명,리자색보법측정삼록을산적검측한위4.8μg/L,선성범위위0.1～10mg/L,가표회수솔재98.7%～101%지간,상대표준편차소우2%;비색법측정삼록을산검측한위80μg/L,선성범위위0.25～5mg/L,가표회수솔재97.3%～104%지간,상대표준편차소우3%.배대t검험결과표명,리자색보법화비색법적결과몰유현저성차이,량충방법균가작위음용수중삼록을산적측정방법.
The experimental results of ion chromatography and colometry in the determination of trichloroacetic acid in drinking water were compared. For ion chromatography, the detection limit was 4.8μg/L, the linear range was 0.01～10mg/L, the recovery of standard addition was 98.7%～101%, and the RSD was less than 2%; and for colorimetry, the detection limit was 80μg/L, the linear range was 0.25～5mg/L, the recovery of standard addition was 97.3%～104%, and the RSD was less than 3%. The t test demonstrated that there was no remarkable difference between the results of the two methods. Both methods can be used for the determination of trichloroacetic acid in drinking water.