Purge-and-Trap Gas Chromatography/Mass Spectrometry for the Analysis of Carboxylic Acids by Esterification.
-
- EHARA Yasushi
- Criminal Investigation Laboratory, Saitama Prefectural Police Headquarters Department of Environmental Science and Human Engineering, Graduate School of Science and Engineering, Saitama University
-
- SAKAMOTO Kazuhiko
- Department of Environmental Science and Human Engineering, Graduate School of Science and Engineering, Saitama University
Search this article
Description
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.
Journal
-
- Analytical Sciences
-
Analytical Sciences 16 (3), 283-286, 2000
The Japan Society for Analytical Chemistry
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390282679231983104
-
- NII Article ID
- 130004440220
- 10004705616
-
- NII Book ID
- AA10500785
-
- COI
- 1:CAS:528:DC%2BD3cXitFegur8%3D
-
- ISSN
- 13482246
- 09106340
-
- NDL BIB ID
- 5312273
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed