Pesticides

Stan, Hans-Juergen

doi:10.1007/978-1-4613-0681-8_9

Cited by 4 publications

References 59 publications

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Capillary gas chromatography—atomic emission detection: A useful instrumental method in pesticide residue analysis of plant foodstuffs

Stan

Linkerhägner

1993

J. High Resol. Chromatogr.

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The high selectivity of element-specific atomic emission detection has proven suitable for screening analysis of plant foodstuffs for pesticide residues by capillary gas chromatography, especially for those foodstuffs which contain high levels of matrix compounds. The elemental composition of a peak can, furthermore, be examined by looking at the partial emission spectra recorded during a GC run. This instrumental feature prevents false positive signal interpretation as a result of high concentration levels of eluting matrix compounds. Experimental Gas Chromatography with Parallel ECD and NPD DetectionGas chromatography was performed w t h a Hewlett-Packard (HP) 5890A gas chromatograph eqwpped with an HP 7673A autosampler and HP ECD and NPD connected for parallel operation by means of an eluate sphtter at the column outlet The chromatograph was fitted vvlth a 50 m x 0 32 mm 1 d fused shca capflary column coated w t h a 0 17 pm film of HP-5 Hot sphtless inlection of 1 pl samples was performed w t h the mlector at 210 "C The column temperature was heid at 100 "C for 1 rmn after mlection, programmed at 30 "/Inn to 150 "C which was held for 2 m, then at 3 "/mn to 205 "C, and finally at 10 "/mn to 260 "C whch was held for 20 min Hehum of 99 999 % punty was used as carner gas Data were

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Capillary gas chromatography—atomic emission detection: A useful instrumental method in pesticide residue analysis of plant foodstuffs

Stan

Linkerhägner

1993

J. High Resol. Chromatogr.

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Analysis of food contaminants by combined liquid chromatography—mass spectrometry (LC—MS)

Gilbert¹

1996

Progress in Food Contaminant Analysis

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Screening analysis of pesticide residues in plant foodstuffs by capillary gas chromatography using the DFG multiresidue method S19: a comparison of customory detection by ECD/NPD with the novel atomic emission detector (AED)

Linkerhägner

Stan

1994

Z Lebensm Unters Forch

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Over a period of 7 months nearly 240 plant foodstuffs taken fresh from the market were analysed for pesticide residues using the Deutsche Forschungsgemeinschaft (DFG) multiresidue method (MRM) S19. The analysed foodstuffs were a representative cross-section of different fruits and vegetables offered on sale on the German market. With the slightly modified MRM S19, up to 400 pesticides and metabolites amenable to gas chromatography (GC) can be determined. The screening analysis was performed with the combination GC-electron-capture detector (ECD)/nitrogen-phosphorus detector (NPD) as well as with the combination GC-atomic emission detector (AED) in parallel. Results obtained from both screening systems agree over the whole concentration range observed. With so-called "problem foodstuffs" the combination GC-AED is clearly more suitable. Confirmation of positive results was performed by GC-mass spectrometry (MS) analysis. On account of its higher selectivity and its wide linear dynamic range down to the lowest detectable concentrations, the GC-AED system produces more reliable quantitative results compared to those obtained from the GC-ECD/NPD system.

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Pesticides

Cited by 4 publications

References 59 publications

Capillary gas chromatography—atomic emission detection: A useful instrumental method in pesticide residue analysis of plant foodstuffs

Capillary gas chromatography—atomic emission detection: A useful instrumental method in pesticide residue analysis of plant foodstuffs

Analysis of food contaminants by combined liquid chromatography—mass spectrometry (LC—MS)

Screening analysis of pesticide residues in plant foodstuffs by capillary gas chromatography using the DFG multiresidue method S19: a comparison of customory detection by ECD/NPD with the novel atomic emission detector (AED)

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