Purge-and-Trap Gas Chromatography/Mass Spectrometry for the Analysis of Carboxylic Acids by Esterification.
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- EHARA Yasushi
- Criminal Investigation Laboratory, Saitama Prefectural Police Headquarters Department of Environmental Science and Human Engineering, Graduate School of Science and Engineering, Saitama University
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- SAKAMOTO Kazuhiko
- Department of Environmental Science and Human Engineering, Graduate School of Science and Engineering, Saitama University
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説明
This report describes the application of purge-and-trap (P&T) gas chromatography/mass spectrometry (GC/MS) to analyze carboxylic acids (CAs) using esterification. The optimum analytical conditions were determined based on the esterification recoveries using 10 mmol L-1 of a CAs methanol solution. P&T sampling was carried out with a Curiepoint head-space sampler. The optimum instrumental conditions were: purging, 150°C for 10 min; trap temperature, -10°C; desorption, 358°C for 20 s. A comparison of pyrolysis (Py)-GC/MS, P&T-GC/MS, and solvent extraction-GC/MS was made based on conversions of the CAs into the corresponding CA methylesters. The merits of the P&T method for the other two methods were validated according to quantitative data, the coefficient of variation, and the lower limit of determination calculated from the standard deviation. As a result, we concluded that the P&T method is more useful than the pyrolysis and solvent extraction methods.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 16 (3), 283-286, 2000
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679231983104
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- NII論文ID
- 130004440220
- 10004705616
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- NII書誌ID
- AA10500785
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- COI
- 1:CAS:528:DC%2BD3cXitFegur8%3D
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 5312273
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可