Separation, detection and densitometric determination of chlorinated insecticides on silica gel and aluminum hydroxide papers | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

4862223

Reference Type

Technical Report

Title

Separation, detection and densitometric determination of chlorinated insecticides on silica gel and aluminum hydroxide papers

Author(s)

Sherma, J; Bloomer, K

Year

1977

Is Peer Reviewed?

Yes

Journal

Journal of Chromatography A
ISSN: 0021-9673
EISSN: 1873-3778

Publisher

ELSEVIER SCIENCE BV

Location

AMSTERDAM

Volume

135

Issue

Page Numbers

235-240

Language

English

PMID

192751

DOI

10.1016/S0021-9673(00)86327-X

Web of Science Id

WOS:A1977DE56400032

Abstract

PESTAB. Commercial chromatography papers are convenient to use and far less expensive than commercial or hand-prepared TLC plates. Therefore a comparative study was performed using papers vs. plates for separating a mixture of alpha-BHC, p,p'-DDD (TDE), o,p'-DDT, aldrin, dieldrin, endrin, and methoxychlor. Papers were dipped in silver nitrate chromogenic solution, dried, and used immediately. After development the spots were revealed by UV exposure, then quantitated by densitometry. Silica gel paper provided better detection than aluminum oxide paper. A 100 ng sample was readily detected on silica gel G layers and silica gel paper, but weakly detectable on aluminum oxide papers. The best separations on all media were obtained with n-heptane and 2% acetone in n-heptane.