Development of a reliable method to determine water content by headspace gas chromatography/mass spectrometry with the standard addition technique
Development of a reliable method to determine water content by headspace gas chromatography/mass spectrometry with the standard addition technique
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开发一种通过顶空气相色谱/质谱法和标准添加技术测定水含量的可靠方法
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
M. Numata
中科院分区：
文献类型：
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作者：
Shinsuke Inagaki;N. Morii;M. Numata
建立了顶空气相色谱/质谱(GC/MS)结合标准加入技术准确测定水含量的新方法。将该方法用于多种溶剂基质配制的市售水标准样品的分析。测定结果在不确定度范围内与标准标准值和卡尔费雪(KF)滴定值一致。此外，该方法还应用于棕榈油等生物燃料样品的分析。结果表明，顶空气相色谱质谱联用技术是一种较好的水分分析方法，该方法适用于各种不宜用KF滴定的分析物。
A new and effective method for accurate water content determination using headspace gas chromatography/mass spectrometry (GC/MS) with the standard addition technique was developed. This method was applied to the analysis of commercially available water standards prepared in many kinds of solvent matrices. The results obtained were consistent with the standard specifications and the values obtained by Karl Fisher (KF) titration within the range of uncertainty. Furthermore, the method was also applied to biofuel samples such as biodiesel derived from palm. Finally, the results revealed that headspace GC/MS is a superior technique for water content analysis, and the developed method is applicable to a variety of analytes for which KF titration is not appropriate.