GC-MS Determination of Organochlorine Pesticides in Five Medicinal Plants

Moltó, J.C.; Lejeune, Bernard; Prognon, P.; Pradeau, D.

doi:10.1080/03067319408033090

Cited by 15 publications

(9 citation statements)

References 17 publications

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“…dieldrin and endrin, a small percentage of dichloromethane should be added to the hexane. This enhancement of extraction efficiency has also been reported elsewhere [16,17].…”

Section: Resultssupporting

confidence: 63%

“…The use of ECD requires more precautions during sample preparation because silica gel is known to be a source of excessive ECD interference [17]. This pro- …”

Section: Resultsmentioning

confidence: 99%

“…Even if more eluting solvent is used, the risk of co-extracting impurities is low. During the drying of the extract care should be taken to avoid loss of volatile pesticides such hexachlorobenzene or lindane [17].…”

Section: Resultsmentioning

confidence: 99%

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Single step clean-up and GC-MS quantification of organochlorine pesticide residues in spice powder

Manirakiza

Schepens

2000

Chromatographia

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SummaryLevels of fourteen organochlorine pesticides have been determined in ready-to-use spice powders. The pesticides were extracted with n-hexane-clichloromethane (4:1) and the extracts were cleaned in a single step on a cartridge packed with silica-and Florisil. The pesticides were quantified by GC-MS in SIM (selected ion monitoring) mode. Recoveries measured for pesticide-free spices ranged from 60% for dieldrin and enclrin to 97% for other pesticides. The relative standard deviation (RSD) of the method for all the pesticides was less than 15%. The method was applied to different spices (pepper, mace, and nutmeg). Methoxychlor, hnclane, and DDTancl its metabolites were found in all the samples; dieldrin and enclrin were not detected in any.spice ingredients [4]. Another approach must, therefore, be considered for the clean-up of spices.Solid-phase extraction on different adsorbents has been used successfully. Several papers have described the determination of organochlorine pesticides in medicinal plants [3], black tea [7], fresh fruit and vegetables [8], and in raw crops and animal feeds [9] by use of solvent extraction and solid-phase extraction [10,11]. Use of supercritical-fluid extraction (SFE) was recently reported for the extraction of organochlorine pesticides from chamomile [12].To the best of our knowledge, no comprehensive data are available on the monitoring of organochlorine pesticides in ready-to-use spice powder. The aim of this study was to develop a simple, rapid and accurate method for the determination of organochlorine residues in ready-to-use spices.

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“…dieldrin and endrin, a small percentage of dichloromethane should be added to the hexane. This enhancement of extraction efficiency has also been reported elsewhere [16,17].…”

Section: Resultssupporting

confidence: 63%

“…The use of ECD requires more precautions during sample preparation because silica gel is known to be a source of excessive ECD interference [17]. This pro- …”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Single step clean-up and GC-MS quantification of organochlorine pesticide residues in spice powder

Manirakiza

Schepens

2000

Chromatographia

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“…Owing to low concentration, the compounds of interest have to be separated from the matrix and concentrated to reach the minimum level required for the particular detector used. Solidphase extraction (SPE) [12], liquid-liquid extraction (LLE) [13], stir bar sorptive extraction (SBSE) [14] and solid-phase microextraction (SPME) [11,15] have been used for the separation and preconcentration of pesticides from the infusion matrices. Actually, there are only few studies based on modern sample preparation methods such as SPME, SBSE (stirring bar sorptive extraction) and SFE (supercritical fluid extraction) focusing on the determination of pesticides in phytomedicines (herbal drugs, infusions, tinctures, dried extracts, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the procedures for the chromatographic detection and quantitation of organochlorine (OCP) and organophosphorus (OPP) on Passiflora infusions must incorporate selective, robust and effective clean-up and extraction steps [17]. Gas chromatography (GC) is a suitable technique for such a purpose [11][12][13][14][15] but, due to low concentration, the compounds of interest have to be separated from the matrix and concentrated to reach the minimum level required for the particular detector used. In the previous research, a new microextraction technique was demonstrated named dispersive liquid-liquid microextraction (DLLME).…”

Section: Introductionmentioning

confidence: 99%