Chromatography extracted carbamate pesticides

Belisle AA, Swineford DM. 1988. Simple, specific analysis of organophosphoms and carbamate pesticides in sediments using column extraction and gas chromatography. Environ Toxicol Chem 7 749-752. 

McGarvey [304] has reviewed high-performance liquid chromatographic methods of determining 31 AT-methylcarbamate pesticides in soil, and Oka-moto et al. [305] used automated solid-phase extraction followed by on-line high-performance liquid chromatography to determine ten carbamate pesticides in soil. 

Sanchez-Brunete, C., Rodriguez, A., and Tadeo, J. L., Multiresidue analysis of carbamate pesticides in soil by sonication assisted extraction in small columns and liquid chromatography, J. Chromatogr. A, 1007, 85-91, 2003. 

Soriano, J. M., Jimenez, B., Font, G., and Molto, J. C., Analysis of carbamate pesticides and their metabolites in water by solid phase extraction and liquid chromatography a review, Crit. Rev. Anal. Chem., 31, 19-52, 2001. 

Slobodnik, J., Hoekstra-Oussoren, S. J. F., Jager, M. E., Honing, M., van Baar, B. L. M., and Brinkman, U. A. Th., Online solid-phase extraction-liquid chromatography-particle beam mass spectrometry and gas chromatography-mass spectrometry of carbamate pesticides. Analyst, 121, 1327-1334, 1996. 

Eight carbamate pesticides were analyzed in bovine rumen. The method was based on extraction, partition, and an addititmal sweep condistillation step. This cleanup gave more re oducible results compared to cellulose-carbon column cleanup. The spots were visualized with either anisaldehyde or lV,2,6-trichloto-benzoquinoneimine after reversed-phase TLC (68). Carbamate and urea herbicides such as chlorpropham, metobromuron, and chlorbromuron were determined in medicinal plants by TLC. First they were hydrolyzed by alkali to 3-chloro-, 4-bromo-, and 3-chloro-4-bromoaniIines. These aniline derivatives were detected with 4-dimethylaminobenzaldehyde after TLC separation (Table 4) (69). Af-methyl carbamate pesticides can be separated by reversed-phase chromatography and analyzed by MS (70). 

Carabias-Martinez, R. et al.. Behavior of carbamate pesticides in gas chromatography and their determination with solid-phase extraction and solid-phase microextraction as preconcentration steps, /. Sep. Sci., 28, 2130, 2005. 

A method for analysis of polar pesticides in wine by the use of automated in-tube SPME coupled with LC/ESI-MS was proposed (Wu et al., 2002). In-tube SPME is a microextraction and preconcentration technique that can be coupled on-line with high-performance liquid chromatography (HPLC), suitable for the analysis of less volatile and/ or thermally labile compounds. This technique uses a coated open tubular capillary as an SPME device and automated extraction. Using a polypyrrole coating, six phenylurea pesticides (diuron, fluometuron, linuron, monuron, neburon, siduron) and six carbamates (barban, car-baryl, chlorpropham, methiocarb, promecarb, propham) were analyzed in wine. Structures of compounds are reported in Fig. 9.4. Due to the high extraction efficiency of the fiber toward polar compounds, benzene compounds, and anionic species, LODs ranging between 0.01 and 1.2pg/L were achieved, even if the sample ethanol content affects the recoveries of analytes. 

Methode M.403-PEST4.0 Eaux — Determination des pesticides de types organophosphores, triazines, carbamates, urees substituees, phtalimides et pyrethrinoides. Extraction in situ avec dichloromethane dosage par chromatographie en phase gazeuse couplee a un... 

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