Naphthalene, 1,4-dimethyl-
- Formula: C12H12
- Molecular weight: 156.2237
- IUPAC Standard InChIKey: APQSQLNWAIULLK-UHFFFAOYSA-N
- CAS Registry Number: 571-58-4
- 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: 1,4-Dimethylnaphthalene; 1,4-Dimethylnapthalene
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Lee's 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 | DB-5MS | 5 % Phenyl methyl siloxane | DB-5MS | HP-5 | SE-52 |
Column length (m) | 30. | 30. | 30. | 30. | |
Carrier gas | |||||
Substrate | |||||
Column diameter (mm) | 0.25 | 0.25 | 0.25 | 0.30 | |
Phase thickness (μm) | 0.25 | 0.5 | 0.25 | ||
Tstart (C) | 50. | 50. | 40. | 50. | 40. |
Tend (C) | 300. | 250. | 310. | 280. | 250. |
Heat rate (K/min) | 6. | 2. | 10. | 4. | 4. |
Initial hold (min) | 2. | 1. | 2. | ||
Final hold (min) | 16. | 20. | |||
I | 246.51 | 243.57 | 246.55 | 246.42 | 243.02 |
Reference | Sun, Zhou, et al., 2008 | Skrbic and Onjia, 2006 | Chen, Keeran, et al., 2002 | Piao, Chu, et al., 1999 | Wang, Peng, et al., 1997 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | DB-5 | CP Sil 8 CB | DB-5 | SE-52 | SE-52 |
Column length (m) | 25. | 50. | 30. | 20. | 12. |
Carrier gas | He | He | He | H2 | He |
Substrate | |||||
Column diameter (mm) | 0.3 | 0.25 | 0.26 | 0.30 | 0.3 |
Phase thickness (μm) | 0.25 | 0.25 | 0.25 | 0.34 | |
Tstart (C) | 60. | 80. | 50. | 40. | 50. |
Tend (C) | 270. | 300. | 300. | 265. | 250. |
Heat rate (K/min) | 5. | 4. | 6. | 4. | 2. |
Initial hold (min) | 2. | 4. | 2. | ||
Final hold (min) | 20. | ||||
I | 245.70 | 246.2 | 247.15 | 246.03 | 243.57 |
Reference | Williams and Horne, 1995 | Bundt, Herbel, et al., 1991 | Rostad and Pereira, 1986 | Vassilaros, Kong, et al., 1982 | Lee, Vassilaros, et al., 1979 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
References
Go To: Top, Lee's 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.
Sun, Zhou, et al., 2008
Sun, P.; Zhou, Q.; Li, G.; Wang, X.; Zhao, Y.; Cao, L.,
fingerprint analysis of polycyclic aromatic hydrocarbons in crude oil by internal standard method,
J. Instrumental Anal., 2008, 27, 4, 344-348. [all data]
Skrbic and Onjia, 2006
Skrbic, B.; Onjia, A.,
Prediction of Lee Retention Indices of Polycyclic Aromatic Hydrocarbons by Artificial Neural Networks,
J. Chromatorg. A, 2006, 1108, 2, 279-284, https://doi.org/10.1016/j.chroma.2006.01.080
. [all data]
Chen, Keeran, et al., 2002
Chen, P.H.; Keeran, W.S.; Van Ausdale, W.A.; Schindler, D.R.; Roberts, D.W.,
Application of Lee retention indices to the confirmation of tentatively identified compounds from GC/MS analysis of environmental samples, Technical paper, Analytical Services Division, Environmental ScienceEngineering, Inc, PO Box 1703, Gainesville, FL 32602, 2002, 11. [all data]
Piao, Chu, et al., 1999
Piao, M.; Chu, S.; Zheng, M.; Xu, X.,
Characterization of the combustion products of polyethylene,
Chemosphere, 1999, 39, 9, 1497-1512, https://doi.org/10.1016/S0045-6535(99)00054-5
. [all data]
Wang, Peng, et al., 1997
Wang, Y.; Peng, P.; Cui, S.; Zhang, Y.,
Identification of PAH in the Suzhou River bed sediments by GC/MS and PAH retention index system,
J. Nanjing Norm. Univ. (Nat. Sci.), 1997, 20, 2, 47-68. [all data]
Williams and Horne, 1995
Williams, P.T.; Horne, P.A.,
Analysis of aromatic hydrocarbons in pyrolytic oil derived from biomass,
J. Anal. Appl. Pyrolysis, 1995, 31, 15-37, https://doi.org/10.1016/0165-2370(94)00814-H
. [all data]
Bundt, Herbel, et al., 1991
Bundt, J.; Herbel, W.; Steinhart, H.; Franke, S.; Francke, W.,
Structure-type separation of diesel fuels by solid phase extraction and identification of the two- and three-ring aromatics by capillary GC-mass spectrometry,
J. Hi. Res. Chromatogr., 1991, 14, 2, 91-98, https://doi.org/10.1002/jhrc.1240140205
. [all data]
Rostad and Pereira, 1986
Rostad, C.E.; Pereira, W.E.,
Kovats and Lee retention indices determined by gas chromatography/mass spectrometry for organic compounds of environmental interest,
J. Hi. Res. Chromatogr. Chromatogr. Comm., 1986, 9, 6, 328-334, https://doi.org/10.1002/jhrc.1240090603
. [all data]
Vassilaros, Kong, et al., 1982
Vassilaros, D.L.; Kong, R.C.; Later, D.W.; Lee, M.L.,
Linear retention index system for polycyclic aromatic compounds. Critical evaluation and additional indices,
J. Chromatogr., 1982, 252, 1-20, https://doi.org/10.1016/S0021-9673(01)88394-1
. [all data]
Lee, Vassilaros, et al., 1979
Lee, M.L.; Vassilaros, D.L.; White, C.M.; Novotny, M.,
Retention Indices for Programmed-Temperature Capillary-Column Gas Chromatography of Polycyclic Aromatic Hydrocarbons,
Anal. Chem., 1979, 51, 6, 768-773, https://doi.org/10.1021/ac50042a043
. [all data]
Notes
Go To: Top, Lee's 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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