Preparation of inert glass capillary columns coated with UCON 50 HB-5100. An attempt to rediscover industrially produced α, ω-polyethylene/polypropyleneglycol ethers as stationary phases in capillary gas chromatography

1987 ◽  
Vol 10 (1) ◽  
pp. 32-38 ◽  
Author(s):  
W. Blum
Author(s):  
R. F. Arrendale ◽  
R. F. Severson ◽  
O. T. Chortyk

Abstract Extensive details are presented for the laboratory preparation of specific glass capillary columns for the gas chromatographic analysis of various phenolic and acidic compounds of leaf and smoke. The chromatography of derivatized and underivatized mono- and dihydroxybenzenes, volatile acids, phenolic acids, and fatty acids is evaluated on both Pyrex glass and fused silica columns prepared by our methodology. The stability, efficiency, and low surface activity of columns prepared from different liquid stationary phases (SE-54, Superox-4, SP-1000, Silar 10C) are illustrated by numerous separations.


1974 ◽  
Vol 20 (9) ◽  
pp. 1105-1110 ◽  
Author(s):  
Milos Novotny ◽  
Michael L McConnell ◽  
Milton L Lee ◽  
Raleigh Farlow

Abstract Trace volatile constituents of human urine, serum, and cerebrospinal fluid were concentrated on a porous polymer precolumn, and resolved with high-efficiency glass capillary columns. Thin-film glass columns facilitate effective resolution of underivatized compounds within the volatility range up to docosane in relatively short analysis times. Glass capillary columns coated with stationary phases of different polarity were used. Recorded volatile metabolic profiles of human urine are altered after the sample is treated with β-glucuronidase and sulphatase.


2005 ◽  
Vol 113 (1321) ◽  
pp. 634-636 ◽  
Author(s):  
Ryoji TAKAHASHI ◽  
Satoshi SATO ◽  
Toshiaki SODESAWA ◽  
Yuta HAGA ◽  
Masanari ISHIZUKI ◽  
...  

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