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Caffeine

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Kovats' RI, non-polar column, isothermal

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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 CapillaryCapillaryCapillaryPackedPacked
Active phase DB-5BP-1BP-1SE-30SE-30
Column length (m) 15.25.25.2.1.
Carrier gas HeN2N2N2N2
Substrate    1% se-30 on Anachrom ABS(80-100mesh)Inerton N AW (1), NaCl (2), and steel powder (3)
Column diameter (mm) 0.250.220.53  
Phase thickness (mum) 0.20.251.  
Temperature (C) 220.200.200.180.210.
I 1840.1797.1803.1809.1824.
ReferencePhillips, Logan, et al., 1990Japp, Gill, et al., 1987Japp, Gill, et al., 1987Musumarra, Scarlata, et al., 1987Lenchik, Rudenko, et al., 1986
Comment MSDC-RI MSDC-RI MSDC-RI MSDC-RI MSDC-RI
Column type PackedCapillaryPackedPackedPacked
Active phase SE-30SPB-1OV-1OV-1OV-101
Column length (m) 1.25.  2.
Carrier gas N2HeN2 N2
Substrate Inerton N AW (1), NaCl (2), and steel powder (3) Chromosorb G Chromosorb G AW DMCS (80-100 mesh)
Column diameter (mm)  0.20   
Phase thickness (mum)      
Temperature (C) 210.250.250.200.200.
I 1832.1840.1818.1800.1800.
ReferenceLenchik, Rudenko, et al., 1986Lora-Tamayo, Rams, et al., 1986Machata and Vycudilik, 1980Berninger and Möller, 1977Möller, 1976
Comment MSDC-RI MSDC-RI MSDC-RI MSDC-RI MSDC-RI
Column type PackedPackedPackedPacked
Active phase OV-101OV-101OV-101OV-101
Column length (m) 2.2.2.2.
Carrier gas N2N2N2N2
Substrate Chromosorb G AW DMCS (80-100 mesh)Chromosorb G AW DMCS (80-100 mesh)Chromosorb WChromosorb W
Column diameter (mm)     
Phase thickness (mum)     
Temperature (C) 200.200.190.230.
I 1805.1810.1796.1833.
ReferenceMöller, 1976Möller, 1976Möller, 1976Möller, 1976
Comment MSDC-RI MSDC-RI MSDC-RI 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.

Phillips, Logan, et al., 1990
Phillips, A.M.; Logan, B.K.; Stafford, D.T., Further applications for capillary gas chromatography in routine quantitative toxicological analyses, J. Hi. Res. Chromatogr., 1990, 13, 11, 754-758, https://doi.org/10.1002/jhrc.1240131106 . [all data]

Japp, Gill, et al., 1987
Japp, M.; Gill, R.; Osselton, M.D., Comparison of drug retention indices determined on packed, wide bore capillary and narrow bore capillary columns, J. Forensic Sci., 1987, 32, 6, 1574-1586. [all data]

Musumarra, Scarlata, et al., 1987
Musumarra, G.; Scarlata, G.; Romano, G.; Cappello, G.; Clementi, S.; Giulietti, G., Qualitative organic analysis. Part 2. Identification of drugs by principal components analysis of standardized TLC data in four eluent systems and of retention indices on SE 30, J. Anal. Toxicol., 1987, 11, 4, 154-163, https://doi.org/10.1093/jat/11.4.154 . [all data]

Lenchik, Rudenko, et al., 1986
Lenchik, N.V.; Rudenko, B.A.; Dzhabarov, D.N., Gas chromatographic analysis of nitrogen-containing pharmaceticals using a thermoaerosol detector and non-porous sorbents, Zh. Anal. Khim., 1986, 1438-1443. [all data]

Lora-Tamayo, Rams, et al., 1986
Lora-Tamayo, C.; Rams, M.A.; Chacon, J.M.R., Gas Chromatographic Data for 187 Nitrogen- or Phosphorus-Containing Drugs and Metabolites of Toxicological Interest Analysed on Methyl Silicone Capillary Columns, J. Chromatogr., 1986, 374, 73-85, https://doi.org/10.1016/S0378-4347(00)83254-5 . [all data]

Machata and Vycudilik, 1980
Machata, G.; Vycudilik, W., Gas chromatographic analysis of illicit heroin samples, J. Anal. Toxicol., 1980, 4, 6, 318-321, https://doi.org/10.1093/jat/4.6.318 . [all data]

Berninger and Möller, 1977
Berninger, H.; Möller, M.R., Retentionsindices zur gaschromatographischen Identifizierung von Arzneimitteln, Arch. Toxicol., 1977, 37, 4, 295-305, https://doi.org/10.1007/BF00330821 . [all data]

Möller, 1976
Möller, M.R., Comparability of retention indices of polar substances at elevated temperatures, Chromatographia, 1976, 9, 7, 311-314, https://doi.org/10.1007/BF02268832 . [all data]


Notes

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