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A new technique for evaluating SiO2 layers on an LSI device

โœ Scribed by H. Koyama; K. Hoh


Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
424 KB
Volume
24
Category
Article
ISSN
0038-1101

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Sequential centrifugal layer chromatogra
โœ Erdelmeier, C. A. J. ;Nyiredy, Sz. ;Sticher, O. ๐Ÿ“‚ Article ๐Ÿ“… 1985 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 243 KB ๐Ÿ‘ 1 views

The new sequential centrifugal layer chromatography extends the possibilities for preparative separation of furocoumarin isomers. In the present work, isobergapten, pimpinellin, bergapten, isopimpinellin, and sphondin were isolated from a prepurified extract of Heracleum sphondylium roots using two