Capillary supercritical fluid chromatography with ultraviolet multichannel detection of some pesticides and herbicides

Voorhees, Kent J.

doi:10.1002/jhrc.1240111003

Cited by 22 publications

(2 citation statements)

References 13 publications

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“…The pesticide determination methods for pyrethroids [23,24], carbamates [23,25], and herbicides and fungicides [23,26] were modified [23] to meet the needs of the present investigation. Hence, a Hewlett Packard SFC model G 1205A attached to an HP 1050 diode array detector, modifier pump G 1205A and a silica column (Alltec Hypersil APS 25 micron, length 205 mm, ID 4.6 mm) was used.…”

Section: Sample Analysismentioning

confidence: 99%

Pesticide Residues in Canned Foods, Fruits, and Vegetables: The Application of Supercritical Fluid Extraction and Chromatographic Techniques in the Analysis

EL-Saeid

2003

The Scientific World JOURNAL

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Multiple pesticide residues have been observed in some samples of canned foods, frozen vegetables, and fruit jam, which put the health of the consumers at risk of adverse effects. It is quite apparent that such a state of affairs calls for the need of more accurate, cost-effective, and rapid analytical techniques capable of detecting the minimum concentrations of the multiple pesticide residues. The aims of this paper were first, to determine the effectiveness of the use of Supercritical Fluid Extraction (SFE) and Supercritical Fluid Chromatography (SFC) techniques in the analysis of the levels of pesticide residues in canned foods, vegetables, and fruits; and second, to contribute to the promotion of consumer safety by excluding pesticide residue contamination from markets. Fifteen different types of imported canned and frozen fruits and vegetables samples obtained from the Houston local food markets were investigated. The major types of pesticides tested were pyrethroids, herbicides, fungicides, and carbamates. By using these techniques, the overall data showed 60.82% of the food samples had no detection of any pesticide residues under this investigation. On the other hand, 39.15% different food samples were contaminated by four different pyrethroid residues ± RSD% ranging from 0.03 ± 0.005 to 0.05 ± 0.03 ppm, of which most of the pyrethroid residues were detected in frozen vegetables and strawberry jam. Herbicide residues in test samples ranged from 0.03 ± 0.005 to 0.8 ± 0.01 ppm. Five different fungicides, ranging from 0.05 ± 0.02 to 0.8 ± 0.1 ppm, were found in five different frozen vegetable samples. Carbamate residues were not detected in 60% of investigated food samples. It was concluded that SFE and SFC techniques were accurate, reliable, less time consuming, and cost effective in the analysis of imported canned foods, fruits, and vegetables and are recommended for the monitoring of pesticide contaminations.

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Section: Sample Analysismentioning

confidence: 99%

Pesticide Residues in Canned Foods, Fruits, and Vegetables: The Application of Supercritical Fluid Extraction and Chromatographic Techniques in the Analysis

EL-Saeid

2003

The Scientific World JOURNAL

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“…With photodiode-array detectors, on-the-fly spectra can be obtained to assist in compound identification, as shown for packed column SFC (Jinno et al, 1986) and for capillary columns (France and Voorhees, 1988). The detection is performed under supercritical or subcritical conditions with the restrictor connected to the detector outlet.…”

Section: 1 Uv and Fluorescence Detectionmentioning

confidence: 99%

Applications of Supercritical Fluids in Industrial Analysis

Dean¹

1993

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Gas Chromatography and Supercritical Fluid Chromatography with Selective Detection in Pesticide Analysis

Carrasco

Bayona

2000

Encyclopedia of Analytical Chemistry

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Pesticide determination by gas chromatography (GC) and supercritical fluid chromatography (SFC) techniques has been presented in this article. Instrumentation used in the different pesticide class analyses, such as injection (vaporizing, cold injection and large volume) and detection techniques (nitrogen–phosphorus detection, NPD; flame photometric detection, FPD; electron capture detection, ECD), and hyphenated systems (atomic emission detection, AED; mass spectrometry, MS; Fourier transform infrared, FTIR) used in GC and SFC determination of pesticides are presented. The figures of merit of each detection technique are outlined. Instrumental set‐ups which combine extraction and separation techniques are also presented. Stationary phases used in GC and the type of SFC columns used in the determination of pesticides are also reported. Finally, the application of recent GC developments in the determination of pesticides is mentioned.

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Capillary supercritical fluid chromatography with ultraviolet multichannel detection of some pesticides and herbicides

Cited by 22 publications

References 13 publications

Pesticide Residues in Canned Foods, Fruits, and Vegetables: The Application of Supercritical Fluid Extraction and Chromatographic Techniques in the Analysis

Pesticide Residues in Canned Foods, Fruits, and Vegetables: The Application of Supercritical Fluid Extraction and Chromatographic Techniques in the Analysis

Applications of Supercritical Fluids in Industrial Analysis

Gas Chromatography and Supercritical Fluid Chromatography with Selective Detection in Pesticide Analysis

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