期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1538, 期 -, 页码 104-107出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2018.01.026
关键词
Nitrite; Water; High-throughput; Headspace gas chromatography
资金
- Key Project of the Science and Technology Ministry of Guangzhou, China [201607020025]
- Natural Science Foundation of China [21576105, 51409287]
This paper reports on a high-throughput headspace gas chromatographic method (HS-GC) for the determination of nitrite content in water sample, based on GC measurement of cyclohexene produced from the reaction between nitrite and cyclamate in a closed vial. The method has a relative standard deviation of <3.5%; The differences between the results of the nitrite measurements obtained by this method and those of a reference method were less than 5.8% and the recoveries of the method were in the range of 94.8-102% (for a spiked nitrite content range from 0.002 to 0.03 mg/L). The limit of detection of the method was 0.46 mu g L-1. Due to an overlapping mode in the headspace auto-sampler system, the method can provide an automated and high-throughput nitrite analysis for the surface water samples. In short, the present HS-GC method is simple, accurate, and sensitive, and it is very suitable to be used in the batch sample testing. (C) 2018 Elsevier B.V. All rights reserved.
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