2010•Chinese Journal of Health Laboratory TechnologyRequires access
Determination of acrolein and crotonaldehyde in water with headspace gas chromatography
Hui Li
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Abstract
Objective:To establish a method for determination of acrolein and crotonaldehyde in water with headspace gas chromatography.Methods:Acrolein and crotonaldehyde in the water were extracted by headspace technology,then analyzed with DB-624 capillary column.At the same time,they were determined with GC by controlling the temperature.Retention time of the peaks was used for qualitative analysis,while external standard method was used for quantitative analysis.Results:The linear ranges for acrolein and crotonaldehyde were 6.2～500 μg/L.The Minimum detectable concentration was 3.3 μg/L and 4.4 μg/L,r≥0.9998,the recovery 102.0%～106.5%,and RSD 1.2%~3.9%.Conclusion:This method can be used to accurately determine acrolein and crotonaldehyde in the water.It is simple,rapid and sensitive.