๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

A gas-liquid chromatographic examination of stilbene derivatives

โœ Scribed by R.W. Hemingway; W.E. Hillis; K. Bruerton

Book ID
104145250
Publisher
Elsevier Science
Year
1970
Tongue
English
Weight
744 KB
Volume
50
Category
Article
ISSN
1873-3778

No coin nor oath required. For personal study only.

โœฆ Synopsis

Trimethylsilyl

ether derivatives of twenty hyclroxystilbenes were separated by gas-liquid chromatography on Apiezon-L, OV-I, OV-17, and SE-54. Relative retention times were highly dependent upon the degree of hydroxylation and methoxylation, the positions of these groups and on cis-tragzs isomerism. OV-I was the best liquid phase for separating compounds with different numbers of trimethylsilyl ether groups while OV-17 was best for separating on the basis of different numbers of methoxyl groups, The method holds promise for analysis of stilbene derivatives in plant extracts.

๐Ÿ“œ SIMILAR VOLUMES

Capillary column gas-liquid chromatograp
Capillary column gas-liquid chromatographic resolution of oxidized cholesterol derivatives
โœ S.Won Park; P.B. Addis ๐Ÿ“‚ Article ๐Ÿ“… 1985 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 642 KB

Fused-silica capillary columns were evaluated for the resolution of oxidized cholesterol derivatives. Thermal instability of diol derivatives, epimeric 7~ and 7fl-hydroxy, 4&hydroxy, and 25-hydroxycholesterol, was observed during gas chromatography. After derivatization as trimethylsilyl ethers the

A new derivative for the gas-liquid chro
A new derivative for the gas-liquid chromatographic determination of homovanillic acid
โœ Stanley W. Dziedzic; Laura M. Bertani; Donald D. Clarke; Stanley E. Gitlow ๐Ÿ“‚ Article ๐Ÿ“… 1972 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 448 KB

Homovanillic acid (HVA) was first identified in 1957 by Armstrong et al. (1) as a normal urinary constituent and a major metabolite of dopa and dopamine (2,3). Abnormal excretion of HVA in association with a variety of diseases including dopamine-secreting tumors (4-7)) familial dysautonomia (8), ac