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建立场所空气中3种卤代乙酸同时检测的离子色谱法。样品用纯水解析后,利用大容量阴离子交换色谱柱分离分析。结果显示,在所建立的最佳实验条件下,3种卤代乙酸能得到有效分离,线性良好,最低检出限在1.0~1.8μg/L,相对标准偏差在3.6%~8.9%,平均回收率在83%~109%。提示,该方法灵敏、简单易操作、准确可靠,用此法检测场所空气中3种卤代乙酸,结果满意。
Establishment of Ion Chromatography for Simultaneous Determination of Three Haloacetic Acids in Air at Locations. After the sample was analyzed with pure water, it was separated and analyzed by a large-capacity anion exchange column. The results showed that under the optimal conditions, the three kinds of haloacetic acid could be effectively separated with good linearity, the minimum detectable limit was 1.0 ~ 1.8μg / L and the relative standard deviation was 3.6% ~ 8.9% Rate of 83% ~ 109%. Prompt, the method is sensitive, simple and easy to operate, accurate and reliable, using this method to test the three kinds of halogenated acetic acid in the air of the place, with satisfactory results.