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Surface modified wall coated open tubular columns: Development and application in pesticide analysis

✍ Scribed by Onuska, F. I. ;Comba, M. E.

Publisher
John Wiley and Sons
Year
1978
Tongue
English
Weight
178 KB
Volume
1
Category
Article
ISSN
0935-6304

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✦ Synopsis

Abstract

Filamentary crystal growth on the inner surface of a glass analytical capillary column using a modified ammonium hydrogen difiuoride procedure, produced highly efficient wall coated open tubular columns.

Baseline separation of the acetate derivatives of 2,3,4,6‐ and 2,3,5,6‐tetrachlorophenol was achieved and was instrumental in determining pentachlorophenol loadings along a watershed. The application of capillary columns, related to the analyses of organochlorine pesticide residues is also demonstrated. Parent and degradation products of twenty‐five commonly monitored residues were effectively resolved on a 20 MOV‐101 column.

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Improved electron-capture GLC determinat
Improved electron-capture GLC determination of alprenolol and oxprenolol in serum using a wall-coated open tubular column
✍ D. Debruyne; H. Kinsun; M. A. Moulin; M. C. Bigot πŸ“‚ Article πŸ“… 1979 πŸ› John Wiley and Sons 🌐 English βš– 228 KB

An accurate, rapid, and sensitive GLC determination of alprenolol and oxprenolol in serum is described. This method combines an electron-capture detector with a wall-coated open tubular column. The lowest detectable amount of the halogenated (heptafluoroacyl) derivatives of alprenolol and oxprenolol