Stearic acid, TMS derivative
- Formula: C21H44O2Si
- Molecular weight: 356.6584
- IUPAC Standard InChI: InChI=1S/C21H44O2Si/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21(22)23-24(2,3)4/h5-20H2,1-4H3
- IUPAC Standard InChIKey: DDLPZVTUKLKVQB-UHFFFAOYSA-N
- CAS Registry Number: 18748-91-9
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Octadecanoic acid, trimethylsilyl ester; Stearic acid, trimethylsilyl ester; Trimethylsilyl ester of octadecanoic acid; Trimethylsilyl stearate; Octadecanoic acid, TMS; Octadecanoic acid, TMS ester; Stearoxytrimethylsilane
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Van Den Dool and Kratz RI, non-polar column, temperature ramp
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
| Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|---|
| Active phase | PE-5 | Ultra-1 | HP-5 | OV-1 | DB-1 |
| Column length (m) | 30. | 25. | 25. | 50. | 30. |
| Carrier gas | He | He | He | He | |
| Substrate | |||||
| Column diameter (mm) | 0.25 | 0.32 | 0.31 | 0.30 | 0.53 |
| Phase thickness (μm) | 0.52 | 0.52 | 0.52 | 1. | |
| Tstart (C) | 50. | 35. | 100. | 130. | 70. |
| Tend (C) | 250. | 320. | 290. | 280. | 290. |
| Heat rate (K/min) | 5. | 15. | 5. | 2. | 4. |
| Initial hold (min) | 5. | ||||
| Final hold (min) | 10. | 15. | |||
| I | 2248. | 2236.43 | 2207. | 2240. | 2238. |
| Reference | Isidorov and Vinogorova, 2003 | Richmond and Pombo-Villar, 1997 | Antoshechkin, Golovkin, et al., 1989 | Harvey, 1989 | Hoffmann, Aramaki, et al., 1989 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary | Capillary | Capillary | Packed |
|---|---|---|---|---|
| Active phase | OV-1 | SE-52 | CP Sil 5 CB | OV-1 |
| Column length (m) | 10. | 25. | 1.8 | |
| Carrier gas | He | He | N2 | N2 |
| Substrate | 100-120 mesh | |||
| Column diameter (mm) | 0.22 | 0.32 | ||
| Phase thickness (μm) | 0.17 | 0.52 | ||
| Tstart (C) | 70. | 70. | 60. | 70. |
| Tend (C) | 270. | 270. | 280. | 290. |
| Heat rate (K/min) | 5. | 5. | 6. | 28. |
| Initial hold (min) | 0.5 | 0.5 | ||
| Final hold (min) | 5. | |||
| I | 2242. | 2243. | 2238. | 2239. |
| Reference | Lefevere, Verhaeghe, et al., 1989 | Lefevere, Verhaeghe, et al., 1989 | Wurth, Kumps, et al., 1989 | Tanaka, Hine, et al., 1980 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
References
Go To: Top, Van Den Dool and Kratz RI, non-polar column, temperature ramp, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Isidorov and Vinogorova, 2003
Isidorov, V.A.; Vinogorova, V.T.,
GC-MS analysis of compounds extracted from buds of Populus balsamifera and Populus nigra,
Z. Naturforsch. C:, 2003, 58, 355-360. [all data]
Richmond and Pombo-Villar, 1997
Richmond, R.; Pombo-Villar, E.,
Short communication. Gas chromatography-mass spectrometry coupled with pseudo-Sadtler retention indices, for the identification of components in the essential oil of Curcuma longa L.,
J. Chromatogr. A, 1997, 760, 2, 303-308, https://doi.org/10.1016/S0021-9673(96)00802-3
. [all data]
Antoshechkin, Golovkin, et al., 1989
Antoshechkin, A.G.; Golovkin, A.B.; Maximova, L.A.; Bakharev, V.A.,
Screening of amniotic fluid metabolites by gas chromatography-mass spectrometry,
J. Chromatogr., 1989, 489, 2, 353-358, https://doi.org/10.1016/S0378-4347(00)82913-8
. [all data]
Harvey, 1989
Harvey, D.J.,
Identification of long-chain fatty acids and alcohols from human cerumen by the use of picolinyl and nicotinate esters,
Biomed. Environ. Mass Spectrom., 1989, 18, 9, 719-723, https://doi.org/10.1002/bms.1200180912
. [all data]
Hoffmann, Aramaki, et al., 1989
Hoffmann, G.; Aramaki, S.; Blum-Hoffmann, E.; Nyhan, W.L.; Sweetman, L.,
Quantitative analysis for organic acids in biological samples: batch isolation followed by gas chromatographic-mass spectrometric analysis,
Clin. Chem., 1989, 35, 4, 587-595. [all data]
Lefevere, Verhaeghe, et al., 1989
Lefevere, M.F.; Verhaeghe, B.J.; Declerck, D.H.; Van Bocxlaer, J.F.; De Leenheer, A.P.; De Sagher, R.M.,
Metabolic Profiling of Urinary Organic Acids by Single and Multicolumn Capillary Gas Chromatography,
J. Chromatogr. Sci., 1989, 27, 1, 23-29, https://doi.org/10.1093/chromsci/27.1.23
. [all data]
Wurth, Kumps, et al., 1989
Wurth, C.; Kumps, A.; Mardens, Y.,
Urinary organic acids: Retention indices on two capillary gas chromatography columns,
J. Chromatogr., 1989, 491, 186-192, https://doi.org/10.1016/S0378-4347(00)82831-5
. [all data]
Tanaka, Hine, et al., 1980
Tanaka, K.; Hine, D.G.; West-Dull, A.; Lynn, T.B.,
Gas-chromatographic method of analysis for urinary organic acids. I. Retention indices of 155 metabolically important compounds,
Clin. Chem., 1980, 26, 13, 1839-1846. [all data]
Notes
Go To: Top, Van Den Dool and Kratz RI, non-polar column, temperature ramp, References
- Symbols used in this document:
Tend Final temperature Tstart Initial temperature - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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