Gas Chromatography Mass Spectrometry Method of Rapid Determination of Trichloroacetaldehyde in Water Optimization

Abstract:

Chloral alkali at room temperature Can be quickly converted into chloroform completely, Application of this principle, By Purge and Trap GC/MS method , Determination of the alkali content of chloroform in water before and after the difference, Inverse to get the water content of chloral. NaOH were added to different volumetric flask. It is flask with standard solutions in different concentrations. Aside a certain amount of determination, error is larger. NaOH was injected directly into the injector. This was the method. It completely transformed in Purge and Trap, greatly reduces human error. The linear range is 0.5-20ug/L, the minimum detection limit can reach 0.05ug/L, the relative standard deviation is less than 2.3%, the average recovery was 97.5%. This method is simple and quick,the results are accurate and reliable, which is able to meet the drinking water source in the analytical needs of chloral.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 359-362
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.359
• Online since: October 2013
• Authors: Mo Jie Sun, Ling Zhang, Ruo Kun Jia
• Keywords: GC-MS Purge, Trap Chlora

References

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