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| 1. |
Developments in pyrolysis capillary GC |
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Journal of High Resolution Chromatography,
Volume 7,
Issue 4,
1984,
Page 172-184
S. A. Liebman,
T. P. Wampler,
E. J. Levy,
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ISSN:0935-6304
DOI:10.1002/jhrc.1240070402
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1984
数据来源: WILEY
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| 2. |
Analysis of volatile organic compounds in polymers by dynamic headspace and gas chromatography/mass spectrometry |
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Journal of High Resolution Chromatography,
Volume 7,
Issue 4,
1984,
Page 185-190
Sven Jacobsson,
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PDF (358KB)
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摘要:
AbstractAn experimental method for the analysis of volatile organic compounds in polymers is described. The technique involves dynamic headspace sampling, collection, and concentration of the volatiles in a cold trap, followed by capillary column gas chromatography/mass spectometry. Flow switching is carried out by the Deans switching technique. Four technical polymers used as pharmaceutical packaging materials have been analyzed in order to demonstrate the method.
ISSN:0935-6304
DOI:10.1002/jhrc.1240070403
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1984
数据来源: WILEY
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| 3. |
Prediction of gas chromatographic retention indices of linear, branched, and cyclic alkanes from their physicochemical properties |
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Journal of High Resolution Chromatography,
Volume 7,
Issue 4,
1984,
Page 191-195
J. Bermejo,
M. D. Guillén,
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PDF (340KB)
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摘要:
AbstractKováts retention indices for a series of linear, branched, and cyclic alkanes on squalane at any temperature, and on other stationary phases of different polarity at a given temperature, are related to physicochemical properties of the solutes, such as boiling point and molar refraction, by multiple regression analysis. The equations found permit calculation of the Kováts retention index for all alkanes, with standard deviations close to experimental error. The same equations can also be used for calculating the physicochemical parameters they contai
ISSN:0935-6304
DOI:10.1002/jhrc.1240070404
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1984
数据来源: WILEY
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| 4. |
HPLC, mass spectrometry, and LC/MS of gossypol and its derivatives |
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Journal of High Resolution Chromatography,
Volume 7,
Issue 4,
1984,
Page 196-202
S. A. Martlin,
R. H. Zhou,
D. E. Games,
A. Jones,
E. D. Ramsey,
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PDF (361KB)
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摘要:
AbstractConditions are reported for the reverse‐phase HPLC analysis of gossypol and of some of its derivatives, including anhydrogossypol, gossypolone, gossypol hexaacetate, and Schiff's base derivatives. It is shown that field desorption (FD) and chemical ionization (CI) mass spectrometry have advantages over electron impact (EI) mass spectrometry for the characterization of these compounds and that combined high‐performance liquid chromatography/mass spectrometry (LC/MS), especially when used in the CI mode, is particularly effect
ISSN:0935-6304
DOI:10.1002/jhrc.1240070405
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1984
数据来源: WILEY
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| 5. |
Multilayer effects in liquid adsorption chromatography with mixed mobile phases |
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Journal of High Resolution Chromatography,
Volume 7,
Issue 4,
1984,
Page 203-207
M. Borówko,
M. Jaroniec,
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摘要:
AbstractThis paper describes the theory of liquid adsorption chromatography (LSC) with mixed mobile phase, involving formation of multilayer surface phases. An equation describing the dependence of the capacity ratio upon the mobile phase composition is derived and theoretical curves illustrating the same dependence are calculated accordingly by assuming different thicknesses of the surface phase.
ISSN:0935-6304
DOI:10.1002/jhrc.1240070406
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1984
数据来源: WILEY
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| 6. |
An experimental study of cooling during evaporation of liquid films |
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Journal of High Resolution Chromatography,
Volume 7,
Issue 4,
1984,
Page 209-210
V. Pretorius,
P. Apps,
E. R. Rohwer,
K. Lawson,
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PDF (119KB)
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ISSN:0935-6304
DOI:10.1002/jhrc.1240070407
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1984
数据来源: WILEY
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| 7. |
Separation of distearoylphosphatidylcholine, dipalmitoylphosphatidylcholine, and dioleylphosphatidylcholine by thin‐layer chromatography using new modified plates |
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Journal of High Resolution Chromatography,
Volume 7,
Issue 4,
1984,
Page 211-212
J. L. Beneytout,
D. Greuet,
M. Tixier,
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PDF (148KB)
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ISSN:0935-6304
DOI:10.1002/jhrc.1240070408
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1984
数据来源: WILEY
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| 8. |
The dynamic film concentrator—A new approach to large and dilute samples in GLC |
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Journal of High Resolution Chromatography,
Volume 7,
Issue 4,
1984,
Page 212-214
P. J. Apps,
V. Pretorius,
E. R. Rohwer,
K. H. Lawson,
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PDF (216KB)
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ISSN:0935-6304
DOI:10.1002/jhrc.1240070409
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1984
数据来源: WILEY
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| 9. |
The use of coupled columns for the capillary gas chromatographic separation of water pollutants |
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Journal of High Resolution Chromatography,
Volume 7,
Issue 4,
1984,
Page 215-217
Mehrzad F. Mehran,
W. J. Cooper,
W. Jennings,
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PDF (259KB)
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ISSN:0935-6304
DOI:10.1002/jhrc.1240070410
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1984
数据来源: WILEY
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| 10. |
High‐speed micro‐HPLC for analysis of polycaclic aromatic hydrocarbons in environmental samples |
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Journal of High Resolution Chromatography,
Volume 7,
Issue 4,
1984,
Page 218-219
Kiyokatsu Jinno,
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PDF (173KB)
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ISSN:0935-6304
DOI:10.1002/jhrc.1240070411
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1984
数据来源: WILEY
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