Benzene, 1,2,3,4-tetramethyl-
- Formula: C10H14
- Molecular weight: 134.2182
- IUPAC Standard InChIKey: UOHMMEJUHBCKEE-UHFFFAOYSA-N
- CAS Registry Number: 488-23-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Prehnitene; Prehnitol; 1,2,3,4-Tetramethylbenzene
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Kovats' RI, non-polar column, isothermal
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 | HP-5 | HP-5 | OV-1 | HP-1 | HP-1 |
Column length (m) | 60. | 60. | 50. | 25. | 25. |
Carrier gas | N2 | N2 | |||
Substrate | |||||
Column diameter (mm) | 0.25 | 0.25 | 0.25 | 0.20 | 0.20 |
Phase thickness (μm) | 0.25 | 0.25 | |||
Temperature (C) | 100. | 120. | 100. | 100. | 100. |
I | 1159.8 | 1169.4 | 1140.9 | 1139. | 1139. |
Reference | Pérez-Parajón, Santiuste, et al., 2004 | Pérez-Parajón, Santiuste, et al., 2004 | Zhu, Zhang, et al., 1999 | Zhang, Li, et al., 1992 | Zhang, Li, et al., 1992 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | OV-101 | OV-101 | Squalane | SE-30 | Squalane |
Column length (m) | 50. | 278. | 15. | 50. | |
Carrier gas | He | H2 | N2 | N2 | |
Substrate | |||||
Column diameter (mm) | 0.20 | 0.25 | 0.25 | 0.25 | |
Phase thickness (μm) | |||||
Temperature (C) | 100. | 100. | 100. | 70. | 86. |
I | 1139. | 1139. | 1136. | 1127.5 | 1129.2 |
Reference | Matisová, Kovacicová, et al., 1989 | Matisová, Rukríglová, et al., 1988 | Nabivach and Vasiliev, 1987 | Tóth, 1983 | Macák, Nabivach, et al., 1982 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | Squalane | OV-1 | Squalane | Squalane | Squalane |
Column length (m) | 50. | 150. | 50. | 50. | 100. |
Carrier gas | N2 | He | N2 | ||
Substrate | |||||
Column diameter (mm) | 0.25 | 0.50 | 0.25 | 0.25 | 0.23 |
Phase thickness (μm) | |||||
Temperature (C) | 96. | 60. | 86. | 96. | 100. |
I | 1132.7 | 1135. | 1129.2 | 1132.7 | 1139. |
Reference | Macák, Nabivach, et al., 1982 | Nijs and Jacobs, 1981 | Nabivach, Bur'yan, et al., 1978 | Nabivach, Bur'yan, et al., 1978 | Engewald and Wennrich, 1976 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Packed | Packed | Packed | Capillary |
---|---|---|---|---|---|
Active phase | Squalane | SE-30 | SE-30 | SE-30 | Squalane |
Column length (m) | 100. | 6.1 | 6.1 | 6.1 | 50. |
Carrier gas | H2 | N2 | N2 | N2 | H2 |
Substrate | Chrom W | Chrom W | Chrom W | ||
Column diameter (mm) | 0.25 | 0.2 | |||
Phase thickness (μm) | |||||
Temperature (C) | 80. | 120. | 130. | 140. | 100. |
I | 1125.98 | 1160. | 1165. | 1168. | 1136. |
Reference | Soják and Rijks, 1976 | Mitra, Mohan, et al., 1974 | Mitra, Mohan, et al., 1974 | Mitra, Mohan, et al., 1974 | Mitra, Mohan, et al., 1974, 2 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary |
---|---|
Active phase | SE-30 |
Column length (m) | 25.5 |
Carrier gas | He |
Substrate | |
Column diameter (mm) | 0.5 |
Phase thickness (μm) | |
Temperature (C) | 65. |
I | 1125.6 |
Reference | Svob and Deur-Siftar, 1974 |
Comment | MSDC-RI |
References
Go To: Top, Kovats' RI, non-polar column, isothermal, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Pérez-Parajón, Santiuste, et al., 2004
Pérez-Parajón, J.M.; Santiuste, J.M.; Takács, J.M.,
Sensitivity of the methylbenzenes and chlorobenzenes retention index to column temperature, stationary phase polarity, and number and chemical nature of substituents,
J. Chromatogr. A, 2004, 1048, 2, 223-232, https://doi.org/10.1016/j.chroma.2004.07.028
. [all data]
Zhu, Zhang, et al., 1999
Zhu, X.; Zhang, L.; Chen, J.; Wang, L.; Che, X.,
The application quantitative structure-retention relationship of GC to aid MS qualitative analysis,
Chin. J. Chromatogr., 1999, 17, 4, 351-353. [all data]
Zhang, Li, et al., 1992
Zhang, M.J.; Li, S.D.; Chen, B.J.,
Compositional studies of high-temperature coal tar by GC/FTIR analysis of light oil fractions,
Chromatographia, 1992, 33, 3/4, 138-146, https://doi.org/10.1007/BF02275894
. [all data]
Matisová, Kovacicová, et al., 1989
Matisová, E.; Kovacicová, E.; Ha, P.T.; Kolek, E.; Engewald, W.,
Identification of alkylbenzenes up to C12 by capillary gas chromatography-mass spectrometry. II. Retention indices on OV-101 columns and retention-molecular structure correlations,
J. Chromatogr., 1989, 475, 2, 113-123, https://doi.org/10.1016/S0021-9673(01)89667-9
. [all data]
Matisová, Rukríglová, et al., 1988
Matisová, E.; Rukríglová, M.; Krupcík, J.; Kovacicová, E.; Holotík, S.,
Identification of alkylbenzenes up to C12 by capillary gas chromatography and combined gas chromatography-mass spectrometry. I. OV-101 as stationary phase,
J. Chromatogr., 1988, 455, 301-309, https://doi.org/10.1016/S0021-9673(01)82129-4
. [all data]
Nabivach and Vasiliev, 1987
Nabivach, V.M.; Vasiliev, E.E.E.,
Correlation dependencies of GC retention indices from physical chemical properties and structures of aromatic hydrocarbons,
Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol., 1987, 30, 72-75. [all data]
Tóth, 1983
Tóth, T.,
Use of capillary gas chromatography in collecting retention and chemical information for the analysis of complex petrochemical mixtures,
J. Chromatogr., 1983, 279, 157-165, https://doi.org/10.1016/S0021-9673(01)93614-3
. [all data]
Macák, Nabivach, et al., 1982
Macák, J.; Nabivach, V.; Buryan, P.; Sindler, S.,
Dependence of retention indices of alkylbenzenes on their molecular structure,
J. Chromatogr., 1982, 234, 2, 285-302, https://doi.org/10.1016/S0021-9673(00)81867-1
. [all data]
Nijs and Jacobs, 1981
Nijs, H.H.; Jacobs, P.A.,
On-Line Single Run Analysis of Effluents from a Fischer-Tropsch Reactor,
J. Chromatogr. Sci., 1981, 19, 1, 40-45, https://doi.org/10.1093/chromsci/19.1.40
. [all data]
Nabivach, Bur'yan, et al., 1978
Nabivach, V.M.; Bur'yan, P.; Matsak, I.,
Retention indices of aromatic hydrocarbons on a squalane capillary column,
Zh. Anal. Khim., 1978, 33, 7, 1108-1113. [all data]
Engewald and Wennrich, 1976
Engewald, W.; Wennrich, L.,
Molekülstruktur und Retentionsverhalten. VIII. Zum Retentionsverhalten höherer Alkylbenzole bei der Gas-Verteilungs-Chromatographie,
Chromatographia, 1976, 9, 11, 540-547, https://doi.org/10.1007/BF02275960
. [all data]
Soják and Rijks, 1976
Soják, L.; Rijks, J.A.,
Capillary gas chromatography of alkylbenzenes. I. Some problems encountered with the precision of the retention indcies of alkylbenzenes,
J. Chromatogr., 1976, 119, 505-521, https://doi.org/10.1016/S0021-9673(00)86812-0
. [all data]
Mitra, Mohan, et al., 1974
Mitra, G.D.; Mohan, G.; Sinha, A.,
Advances in the utilization of the retention index system for characterizing hydrocarbons in complex mixtures by gas chromatography,
J. Chromatogr., 1974, 99, 215-230, https://doi.org/10.1016/S0021-9673(00)90857-4
. [all data]
Mitra, Mohan, et al., 1974, 2
Mitra, G.D.; Mohan, G.; Sinha, A.,
Gas chromatographic analysis of complex hydrocarbon mixtures,
J. Chromatogr. A, 1974, 91, 633-648, https://doi.org/10.1016/S0021-9673(01)97944-0
. [all data]
Svob and Deur-Siftar, 1974
Svob, V.; Deur-Siftar, D.,
Kovats Retention Indices in the Identification of Alkylbenzene Degradation Products,
J. Chromatogr., 1974, 91, 677-689, https://doi.org/10.1016/S0021-9673(01)97947-6
. [all data]
Notes
Go To: Top, Kovats' RI, non-polar column, isothermal, References
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