Abstract
In this study, a series of GC calibration experiments were conducted to examine the feasibility of the thermal desorption approach for the quantification of five carbonyl compounds (acetaldehyde, propionaldehyde, butyraldehyde, isovaleraldehyde, and valeraldehyde) in conjunction with two internal standard compounds. The gaseous working standards of carbonyls were calibrated with the aid of thermal desorption as a function of standard concentration and of loading volume. The detection properties were then compared against two types of external calibration data sets derived by fixed standard volume and fixed standard concentration approach. According to this comparison, the fixed standard volume-based calibration of carbonyls should be more sensitive and reliable than its fixed standard concentration counterpart. Moreover, the use of internal standard can improve the analytical reliability of aromatics and some carbonyls to a considerable extent. Our preliminary test on real samples, however, indicates that the performance of internal calibration, when tested using samples of varying dilution ranges, can be moderately different from that derivable from standard gases. It thus suggests that the reliability of calibration approaches should be examined carefully with the considerations on the interactive relationships between the compound-specific properties and the operation conditions of the instrumental setups.
| Original language | English |
|---|---|
| Pages (from-to) | 3354-3364 |
| Number of pages | 11 |
| Journal | Journal of Separation Science |
| Volume | 33 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - 2010 Nov 1 |
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Keywords
- External calibration
- Gas chromatography
- Internal calibration
- Odorants
- Thermal desorption
ASJC Scopus subject areas
- Analytical Chemistry
- Filtration and Separation
Cite this
A combined application of thermal desorber and gas chromatography to the analysis of gaseous carbonyls with the aid of two internal standards. / Kim, Ki Hyun; Anthwal, A.; Pandey, Sudhir Kumar; Kabir, Ehsanul; Sohn, Jong Ryeul.
In: Journal of Separation Science, Vol. 33, No. 21, 01.11.2010, p. 3354-3364.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A combined application of thermal desorber and gas chromatography to the analysis of gaseous carbonyls with the aid of two internal standards
AU - Kim, Ki Hyun
AU - Anthwal, A.
AU - Pandey, Sudhir Kumar
AU - Kabir, Ehsanul
AU - Sohn, Jong Ryeul
PY - 2010/11/1
Y1 - 2010/11/1
N2 - In this study, a series of GC calibration experiments were conducted to examine the feasibility of the thermal desorption approach for the quantification of five carbonyl compounds (acetaldehyde, propionaldehyde, butyraldehyde, isovaleraldehyde, and valeraldehyde) in conjunction with two internal standard compounds. The gaseous working standards of carbonyls were calibrated with the aid of thermal desorption as a function of standard concentration and of loading volume. The detection properties were then compared against two types of external calibration data sets derived by fixed standard volume and fixed standard concentration approach. According to this comparison, the fixed standard volume-based calibration of carbonyls should be more sensitive and reliable than its fixed standard concentration counterpart. Moreover, the use of internal standard can improve the analytical reliability of aromatics and some carbonyls to a considerable extent. Our preliminary test on real samples, however, indicates that the performance of internal calibration, when tested using samples of varying dilution ranges, can be moderately different from that derivable from standard gases. It thus suggests that the reliability of calibration approaches should be examined carefully with the considerations on the interactive relationships between the compound-specific properties and the operation conditions of the instrumental setups.
AB - In this study, a series of GC calibration experiments were conducted to examine the feasibility of the thermal desorption approach for the quantification of five carbonyl compounds (acetaldehyde, propionaldehyde, butyraldehyde, isovaleraldehyde, and valeraldehyde) in conjunction with two internal standard compounds. The gaseous working standards of carbonyls were calibrated with the aid of thermal desorption as a function of standard concentration and of loading volume. The detection properties were then compared against two types of external calibration data sets derived by fixed standard volume and fixed standard concentration approach. According to this comparison, the fixed standard volume-based calibration of carbonyls should be more sensitive and reliable than its fixed standard concentration counterpart. Moreover, the use of internal standard can improve the analytical reliability of aromatics and some carbonyls to a considerable extent. Our preliminary test on real samples, however, indicates that the performance of internal calibration, when tested using samples of varying dilution ranges, can be moderately different from that derivable from standard gases. It thus suggests that the reliability of calibration approaches should be examined carefully with the considerations on the interactive relationships between the compound-specific properties and the operation conditions of the instrumental setups.
KW - External calibration
KW - Gas chromatography
KW - Internal calibration
KW - Odorants
KW - Thermal desorption
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UR - http://www.scopus.com/inward/citedby.url?scp=78349236988&partnerID=8YFLogxK
U2 - 10.1002/jssc.201000015
DO - 10.1002/jssc.201000015
M3 - Article
C2 - 21049523
AN - SCOPUS:78349236988
VL - 33
SP - 3354
EP - 3364
JO - Journal of Separation Science
JF - Journal of Separation Science
SN - 1615-9306
IS - 21
ER -