| 1. |
Focused cryogenic trapping for dynamic headspace and pyrolytic analysis of polymers on a fused silica capillary column |
| |
Journal of High Resolution Chromatography,
Volume 4,
Issue 12,
1981,
Page 603-611
James G. Moncur,
Terry E. Sharp,
Edward R. Byrd,
Preview
|
PDF (557KB)
|
|
摘要:
AbstractFocused cryogenic trapping has been used to maximize the high resolution capabilities of fused silica capillary columns during dynamic headspace and pyrolytic polymer analyses. Mass spectrometric detection with data system recording/processing provide sensitive, selective, and rapid results. The techniques described herein demonstrate the power of both dynamic headspace and pyrolytic analyses for troubleshooting applications with complex industrial polymer products.
ISSN:0935-6304
DOI:10.1002/jhrc.1240041202
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1981
数据来源: WILEY
|
| 2. |
Analysis of light hydrocarbons C1–C5with Porous Layer Open Tubular fused silica columns of aluminum oxide. Part 1: The column |
| |
Journal of High Resolution Chromatography,
Volume 4,
Issue 12,
1981,
Page 612-615
R. C. M. de Nijs,
Preview
|
PDF (334KB)
|
|
摘要:
AbstractA method is described for the preparation of a Porous Layer Open Tubular (PLOT) fused silica column coated with submicron particles of aluminum oxide for the analysis of light hydrocarbons. The column is thermally stable and provides reproducible analytical data over a long period of time. The column can be operated at temperatures easily controlled by commercially available gas chromatographic apparatus. 1,3‐Butadiene is retarded much more than its principal impurities: thus the polarity of aluminum oxide is extremely useful for butadiene analysis because none of the contaminants is obscured by the butadiene peak. The analysis of the 16 most common C1–C4hydrocarbons is achieved within 5 min at 60°C with helium as the carrier gas. Conditioning of the carrier gas with water vapor from CuSO4.5H2O to decrease the activity of the aluminum oxide is described. Some applications of a 30 m × 0.32 mm aluminum oxide PLOT column are
ISSN:0935-6304
DOI:10.1002/jhrc.1240041203
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1981
数据来源: WILEY
|
| 3. |
High performance liquid chromatography/video fluorometry. Part II: Applications |
| |
Journal of High Resolution Chromatography,
Volume 4,
Issue 12,
1981,
Page 616-626
D. C. Shelly,
M. P. Fogarty,
I. M. Warner,
Preview
|
PDF (827KB)
|
|
摘要:
AbstractA video fluorometer is used as a detector for HPLC to characterize highly complex samples. Data selection and evaluation techniques are discussed so as to speed the spectral identification process. Several well‐known polynuclear aromatic hydrocarbons are found in the sample
ISSN:0935-6304
DOI:10.1002/jhrc.1240041204
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1981
数据来源: WILEY
|
| 4. |
Comparative study of efficiency and reproducibility of two high‐performance gel permeation chromatography columns with microparticulate packings |
| |
Journal of High Resolution Chromatography,
Volume 4,
Issue 12,
1981,
Page 627-634
W. G. Rand,
A. K. Mukherji,
Preview
|
PDF (545KB)
|
|
摘要:
AbstractTwo kinds of commercially available, microparticulate silica columns have been studied for their efficiency and reproducibility in gel permeation chromatography measurements. Results are provided for column plate height measurements, dispersity, and specific resolution as a function of flow rate. The influence of injection volume and slice width on these measurements is also presented. Reproducibility studies on polystyrene and styrene‐n‐butyl methacrylate copolymer are repor
ISSN:0935-6304
DOI:10.1002/jhrc.1240041205
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1981
数据来源: WILEY
|
| 5. |
Obtaining quantitative data for PNAs with capillary column gas chromatography using split and splitless injection |
| |
Journal of High Resolution Chromatography,
Volume 4,
Issue 12,
1981,
Page 638-641
D. L. Springer,
D. W. Phelps,
R. E. Schirmer,
Preview
|
PDF (308KB)
|
|
ISSN:0935-6304
DOI:10.1002/jhrc.1240041206
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1981
数据来源: WILEY
|
| 6. |
On‐column injection with open tubular columns |
| |
Journal of High Resolution Chromatography,
Volume 4,
Issue 12,
1981,
Page 641-643
K. Knauss,
J. Fullemann,
M. P. Turner,
Preview
|
PDF (235KB)
|
|
ISSN:0935-6304
DOI:10.1002/jhrc.1240041207
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1981
数据来源: WILEY
|
| 7. |
A non‐vaporizing on‐column injector for wide‐bore capillary gas chromatography which prevents sample discrimination |
| |
Journal of High Resolution Chromatography,
Volume 4,
Issue 12,
1981,
Page 644-646
H. T. Badings,
C. De Jong,
J. G. Wassink,
Preview
|
PDF (259KB)
|
|
ISSN:0935-6304
DOI:10.1002/jhrc.1240041208
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1981
数据来源: WILEY
|
| 8. |
Simple GC/FID trace determination of toluene in silicone fluids |
| |
Journal of High Resolution Chromatography,
Volume 4,
Issue 12,
1981,
Page 647-648
Gerald F. Dudding,
Gerald T. Sorensen,
Preview
|
PDF (168KB)
|
|
ISSN:0935-6304
DOI:10.1002/jhrc.1240041209
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1981
数据来源: WILEY
|
| 9. |
Characterization of basic nitrogen compounds in gasolines by gas chromatography‐mass spectrometry |
| |
Journal of High Resolution Chromatography,
Volume 4,
Issue 12,
1981,
Page 649-651
F. P. Disanzo,
Preview
|
PDF (165KB)
|
|
ISSN:0935-6304
DOI:10.1002/jhrc.1240041210
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1981
数据来源: WILEY
|
| 10. |
Some techniques for capillary chromatography |
| |
Journal of High Resolution Chromatography,
Volume 4,
Issue 12,
1981,
Page 651-652
Takao Tsuda,
Preview
|
PDF (151KB)
|
|
ISSN:0935-6304
DOI:10.1002/jhrc.1240041211
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1981
数据来源: WILEY
|
首页
