Ascorbic acid, 4TMS derivative
- Formula: C18H40O6Si4
- Molecular weight: 464.8486
- IUPAC Standard InChI: InChI=1S/C18H40O6Si4/c1-25(2,3)20-13-14(22-26(4,5)6)15-16(23-27(7,8)9)17(18(19)21-15)24-28(10,11)12/h14-15H,13H2,1-12H3/t14?,15-/m0/s1
- IUPAC Standard InChIKey: ZCJXSXDUVKVLEK-LOACHALJSA-N
- CAS Registry Number: 55517-56-1
- Chemical structure:
This structure is also available as a 2d Mol file - Stereoisomers:
- Other names: L-Ascorbic acid, 2,3,5,6-tetrakis-O-(trimethylsilyl)-; Ascorbic acid, tetrakis-TMS ether; Ascorbic acid (4TMS); Ascorbic acid, tetra-TMS; Ascorbic acid, tetrakis-O-TMS; Ascorbic acid, TMS; Ascorbate, tetra-TMS
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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 |
|---|---|---|---|---|
| Active phase | RTX-5Sil MS | RTX-5Sil | DB-5 | SE-52 |
| Column length (m) | 30. | 30. | 30. | 25. |
| Carrier gas | He | He | He | |
| Substrate | ||||
| Column diameter (mm) | 0.25 | 0.25 | 0.25 | 0.32 |
| Phase thickness (μm) | 0.25 | 0.52 | ||
| Tstart (C) | 80. | 80. | 100. | 70. |
| Tend (C) | 350. | 350. | 290. | 270. |
| Heat rate (K/min) | 18. | 18. | 10. | 5. |
| Initial hold (min) | 2. | 2. | 1. | |
| Final hold (min) | 2. | 2. | 8. | |
| I | 1946.4 | 1946.4 | 1971. | 1977. |
| Reference | Wagner, Sefkow, et al., 2003 | Wagner, Sefkow, et al., 2003 | Fu, Iga, et al., 2000 | Lefevere, Verhaeghe, et al., 1989 |
| 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.
Wagner, Sefkow, et al., 2003
Wagner, C.; Sefkow, M.; Kopka, J.,
Construction and application of a mass spectral and retention time index database generated from plant GC/EI-TOF-MS metabolite profiles,
Phytochemistry, 2003, 62, 6, 887-900, https://doi.org/10.1016/S0031-9422(02)00703-3
. [all data]
Fu, Iga, et al., 2000
Fu, X.; Iga, M.; Kimura, M.; Yamaguchi, S.,
Simplified screening for organic acidemia using GC/MS and dried urine filter paper: a study on neonatal mass screening,
Early Hum. Dev., 2000, 58, 1, 41-55, https://doi.org/10.1016/S0378-3782(00)00053-0
. [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]
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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