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| 11. |
Enantiomer separation with capillary gas chromatography columns coated with cyclodextrins. Part I: Separation of enantiomeric 2‐substituted propionic acid esters and some lower alcohols with permethylated β‐cyclodextrin |
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Journal of High Resolution Chromatography,
Volume 12,
Issue 1,
1989,
Page 32-34
A. Venema,
P. J. A. Tolsma,
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摘要:
AbstractThe applicability of permethylated β‐cyclodextrin as an enantioselective stationary phase for capillary gas chromatography has been investigated. Attention has been paid to its phase transitions in a temperature range of 40–200°C. The enantiomer separation of 2‐substituted propionates and some lower alcohols illustrates the pronounced selectivity of the permethylated β‐cyclodextrin relative to molecula
ISSN:0935-6304
DOI:10.1002/jhrc.1240120112
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1989
数据来源: WILEY
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| 12. |
Cyclodextrins as chiral stationary phases in capillary gas chromatography. Part IV: Heptakis(2,3,6‐tri‐O‐pentyl)‐β‐cyclodextrin |
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Journal of High Resolution Chromatography,
Volume 12,
Issue 1,
1989,
Page 35-39
W. A. König,
S. Lutz,
M. Hagen,
R. Krebber,
G. Wenz,
K. Baldenius,
J. Ehlers,
H. Tom Dieck,
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摘要:
AbstractO‐Perpentylated β‐cyclodextrin has been evaluated as chiral stationary phase in capillary gas chromatography. Enantioselectivity is observed towards many chiral hydroxy compounds, including cyanohydrins and carbohydrates. Most importantly, the enantiomers of many olefins and alkyl halides can be resolved on this chiral phase. The thermal stability of the cyclodextrin derivative exceeds 2
ISSN:0935-6304
DOI:10.1002/jhrc.1240120113
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1989
数据来源: WILEY
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| 13. |
Analysis of propellant stabilizer components via packed and capillary supercritical fluid chromatography/Fourier transform infrared spectrometry |
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Journal of High Resolution Chromatography,
Volume 12,
Issue 1,
1989,
Page 40-44
M. Ashraf‐Khorassani,
L. T. Taylor,
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摘要:
AbstractThe separation of model mixtures of nitrated diphenylamine and nitrated aniline via supercritical fluid chromatography employing both capillary and packed columns is described. With highly deactivated stationary phases each mixture could be separated with 100% CO2pressure programmed. Peak identification and peak purity were afforded by on‐line Fourier transform infrared spectrometric detection. Nitrosoaniline derivatives were observed via FTIR to have been converted to nitro derivatives on storag
ISSN:0935-6304
DOI:10.1002/jhrc.1240120114
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1989
数据来源: WILEY
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| 14. |
High speed analysis of underivatized drugs by gas chromatography–mass spectrometry |
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Journal of High Resolution Chromatography,
Volume 12,
Issue 1,
1989,
Page 45-48
J. D. Kokanovich,
T. F. Simonick,
V. W. Watts,
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摘要:
AbstractThe technique of choice for many types of forensic drug confirmations is gas chromatography/mass spectrometry (GC/MS). Significant amounts of analytical time can be involved in a GC/MS run. The use of a 0.1 mm i.d. fused silica capillary column with hydrogen carrier gas can significantly increase the speed of an analysis without sacrificing resolution. Nanogram levels of underivatized drugs, from amphetamine to strychnine, can be eluted in less than twelve minutes. The multitasking system permits data acquisition, while performing data reduction on the previous run.
ISSN:0935-6304
DOI:10.1002/jhrc.1240120115
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1989
数据来源: WILEY
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| 15. |
Determination of free erythrodiol in olive oil by coupled LC‐GC |
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Journal of High Resolution Chromatography,
Volume 12,
Issue 1,
1989,
Page 49-50
Konrad Grob,
Maurus Biedermann,
Thomas Läubli,
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ISSN:0935-6304
DOI:10.1002/jhrc.1240120116
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1989
数据来源: WILEY
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| 16. |
A method for the preparation of binary mobile phase mixtures for capillary supercritical fluid chromatography |
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Journal of High Resolution Chromatography,
Volume 12,
Issue 1,
1989,
Page 51-52
D. E. Raynie,
S. M. Fields,
N. M. Djordevic,
K. E. Markides,
M. L. Lee,
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ISSN:0935-6304
DOI:10.1002/jhrc.1240120117
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1989
数据来源: WILEY
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| 17. |
Mechanical modulation for multiplex gas chromatographic analyses at subatmospheric pressures |
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Journal of High Resolution Chromatography,
Volume 12,
Issue 1,
1989,
Page 53-55
J. R. Valentin,
K. W. Hall,
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ISSN:0935-6304
DOI:10.1002/jhrc.1240120118
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1989
数据来源: WILEY
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| 18. |
Replacement of conventional stainless steel‐based HPLC pump heads by corrosion‐resistant polymer heads for halide containing eluents |
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Journal of High Resolution Chromatography,
Volume 12,
Issue 1,
1989,
Page 56-58
S. Nilsson,
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ISSN:0935-6304
DOI:10.1002/jhrc.1240120119
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1989
数据来源: WILEY
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| 19. |
Normal phase HPLC of an aniline, nitrobenzene, phenol, and salicyclic acid mixture; separation and peak resolution by water and acetic acid |
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Journal of High Resolution Chromatography,
Volume 12,
Issue 1,
1989,
Page 59-61
A. Kunugi,
K. Tabei,
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ISSN:0935-6304
DOI:10.1002/jhrc.1240120120
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1989
数据来源: WILEY
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| 20. |
Bovine serum albumin bonded to hydroxyethylmethacrylate polymer for chiral separations |
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Journal of High Resolution Chromatography,
Volume 12,
Issue 1,
1989,
Page 61-62
Z. Šimek,
R. Vespalec,
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ISSN:0935-6304
DOI:10.1002/jhrc.1240120121
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1989
数据来源: WILEY
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