Automated gel permeation chromatographic preparation of vegetables, fruits, and crops for organophosphate residue determination utilizing flame photometric detection

Ja, Ault; Cm, Schofield; Ld, Johnson; Rh, Waltz

doi:10.1021/jf60224a043

Cited by 37 publications

(2 citation statements)

References 7 publications

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“…GPC has been used for sample cleanup in pesticide analysis since the early 1970s. Ault et al (1979) have already described automated GPC. Tillkes (1980,1985) developed GPC to a method which became part of the official German methods for cleanup of pesticide samples.…”

Section: Introductionmentioning

confidence: 99%

Attempt for an on-line size exclusion chromatography-gas chromatography method for analyzing pesticide residues in foods

Grob¹,

Kaelin²

1991

J. Agric. Food Chem.

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Advantages and limitations of an on-line SEC-GC method for the analysis of pesticide residues in foods are discussed; results are shown for olive oil, fat extracts of chicken and fish, and lettuce. The method allows automated integration of sample preparation into the GC analysis and eliminates corresponding manual work. It is well suited as a multimethod for analyzing many strongly differing components at the same time, and, as high molecular weight materials are removed, it allows on-column introduction into GC without contaminating the column inlet. On the other hand, SEC is poorly suited to "thin out" gas chromatograms, i.e., to eliminate interfering peaks. Detection limits of chlorinated pesticides related to the amount of fat injected were 10-50 Mg/kg.

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Section: Introductionmentioning

confidence: 99%

Attempt for an on-line size exclusion chromatography-gas chromatography method for analyzing pesticide residues in foods

Grob¹,

Kaelin²

1991

J. Agric. Food Chem.

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“…A GPC cleanup of vegetables, fruits, and crops for the analysis of organophosphate pesticide residues was introduced by Ault et al (1979). This GPC system used Bio-Beads SX-3 with methylene chloride-cyclohexane (15:85 v/v) as the eluting solvent.…”

mentioning

confidence: 99%

Automated gel permeation system for rapid separation of industrial chemicals and organophosphate and chlorinated pesticides from fats

Hopper¹

1982

J. Agric. Food Chem.

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Pesticides, Mycotoxins and Residues Analysis in Food

Volante

Branca

2000

Encyclopedia of Analytical Chemistry

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This article will deal with methods for analyzing residues of pesticides and mycotoxins from molds in food. A general description of each topic is given directing the reader towards some key reviews, books or manuals published in the field with specific references added for more recent papers or topics of particular interest; techniques such as chromatography, spectrophotometry and immunochemical methods have been reviewed. In the first section sampling procedures are discussed, in the second section an overall description of the analytical methods used for pesticide residues in food is given with particular attention to multiresidue methods, in general those used most for assessing residue levels in crops at the international level, with consideration given to those less used methods dedicated to specific compound classes not covered elsewhere. The third section deals with mycotoxins with a brief description of the various mycotoxin types and some properties, followed by some discussion of analytical methods. The description of analytical techniques has been divided into extraction, cleanup and instrumental determination techniques for both pesticides and mycotoxins. Some tables of experimental data are also given. The last section (four) deals with quality assurance aspects outlining the necessary steps, included interlaboratory trials, needed to validate a method and to assure reliability of the data.

show abstract

Automated gel permeation chromatographic preparation of vegetables, fruits, and crops for organophosphate residue determination utilizing flame photometric detection

Cited by 37 publications

References 7 publications

Attempt for an on-line size exclusion chromatography-gas chromatography method for analyzing pesticide residues in foods

Attempt for an on-line size exclusion chromatography-gas chromatography method for analyzing pesticide residues in foods

Automated gel permeation system for rapid separation of industrial chemicals and organophosphate and chlorinated pesticides from fats

Pesticides, Mycotoxins and Residues Analysis in Food

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