顶空气相色谱法测定水中甲醛、乙醛和丙烯醛

建立了顶空气相色谱法同时测定水中甲醛、乙醛、丙烯醛的方法。目标化合物连续测定9次的相对标准偏差分别为0.01,1.89,3.54;检出限分别为0.03μg/L,5.68μg/L,10.3μg/L,实际水样加标回收率在98%~101%。方法简便,快速,灵敏度高,基体干扰小。适用于地表水、地下水和工业废水中甲醛、乙醛、丙烯醛的同时、快速测定。

Determination of Formaldehyde,Acetaldehyde and Acrolein in Water by Static Headspace Gas Chromatography

This study established the determination method of formaldehyde, acetaldehyde and acrolein in water by Static Headspace Gas Chromatography. The relative standard deviations of target compounds were 0. 01, 1.89, 3.54, respectively, with the detection limits of 0.03 μg/L, 5.68 μg/L, 10. 3 μg/L respectively, and the recoveries were 98% - 101%. This method had the advantages of little disturbance from matrix interference, high sensitivity, convenience, speediness and could be suitable for the rapid determination of formaldehyde, acetaldehyde and acrolein in water.