A high-throughput headspace gas chromatographic technique for the determination of nitrite content in water samples.
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Abstract | :
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 μg 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. |
Year of Publication | :
2018
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Journal | :
Journal of chromatography. A
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Date Published | :
2018
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ISSN Number | :
0021-9673
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URL | :
http://linkinghub.elsevier.com/retrieve/pii/S0021-9673(18)30057-8
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DOI | :
10.1016/j.chroma.2018.01.026
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Short Title | :
J Chromatogr A
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