Thin-layer chromatography of DDT and some related compounds on aluminum oxide chromatoplates

1972 ◽  
Vol 64 (1) ◽  
pp. 135-145 ◽  
Author(s):  
Rafik H. Bishara ◽  
Gordon S. Born ◽  
John E. Christian
Keyword(s):  
Aluminum Oxide ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Layer Chromatography ◽  
Related Compounds

Analysis of Dairy Products for Chlorinated Insecticide Residues by Thin Layer Chromatography

1966 ◽  
Vol 49 (4) ◽  
pp. 795-800
Author(s):  
William A Moats
Keyword(s):  
Aluminum Oxide ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Silica Gel ◽  
Color Development ◽  
Tlc Plates ◽  
One Step ◽  
Rf Values ◽  
Tlc Analysis ◽  
Layer Chromatography

Abstract Butterfat and milk samples were analyzed for chlorinated insecticides by thin layer chromatography (TLC) on aluminum oxide or silica gel plates containing a small amount of silver nitrate. The adsorbent was washed with distilled water before preparing the plates. A one-step cleanup on a partially inactivated Florisil column was performed prior to TLC analysis. For color development, the TLC plates were sprayed lightly with hydrogen peroxide to suppress possible interference from fat and then steamed before exposure to ultraviolet light to accelerate and intensify the color reaction. Rf values for a number of solvent systems on aluminum oxide and silica gel plates are given. With this procedure, 0.05 μg or less of insecticide can be detected in a 0.4 g butterfat sample or the extract from 10 ml milk.

scholarly journals Recent Advances in the Thin-Layer Chromatography of Pesticides: A Review

2003 ◽  
Vol 86 (3) ◽  
pp. 602-611 ◽  
Author(s):  
Joseph Sherma
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Environmental Samples ◽  
High Performance ◽  
Residue Analysis ◽  
Thin Layer Chroma ◽  
Biological And Environmental Samples ◽  
Layer Chromatography ◽  
Related Compounds

Abstract Advances in the applications of thin-layer chroma-tography (TLC) and high-performance TLC for the separation, detection, identification, and determination of pesticides, other agrochemicals, and related compounds are reviewed for the period 2000–2002. Analyses are described for a variety of samples, such as food, biological, and environmental samples, and for residues of pesticides of various types, including insecticides, herbicides, and fungicides, belonging to different chemical classes. References are included for residue analysis, hydrophobicity studies, and the use of TLC and thin-layer radiochromatography for studies of pesticide metabolism, degradation, uptake, and related topics.

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