Supercritical fluid extraction and clean-up of organochlorine pesticides and polychlorinated biphenyls in mussels

Ling, Yong; Teng, Hung-Jin

doi:10.1016/s0021-9673(97)00734-6

Cited by 32 publications

(6 citation statements)

References 26 publications

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“…The concentrations varied substantially within the sampling locations (Table 4). The concentrations of DDTs reached 121 ng g À1 in a number of Oyster samples in Taiwan (Ling and Teng, 1997). Comparing to other area, OCPs contamination in mollusks living in Bohai Sea are not so high.…”

Section: Concentration Profiles Of Hchs and Ddtsmentioning

confidence: 89%

Investigation of organochlorine pesticides (OCPs) in mollusks collected from coastal sites along the Chinese Bohai Sea from 2002 to 2004

Wang

Yang

Jiang

2007

Environmental Pollution

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Section: Concentration Profiles Of Hchs and Ddtsmentioning

confidence: 89%

Investigation of organochlorine pesticides (OCPs) in mollusks collected from coastal sites along the Chinese Bohai Sea from 2002 to 2004

Wang

Yang

Jiang

2007

Environmental Pollution

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“…A variety of different clean-up methods have been used to analyze organochlorine pesticides. 1,2 Solidphase extraction (SPE) with a conventional adsorption column to remove impurities is a widely used environmental analysis procedure. Several sorbents, including octadecyl (C 18 )-bonded porous silica, silica gel and Florisil, have been used to trap the analytes.…”

Section: Introductionmentioning

confidence: 99%

Determination of organochlorine pesticide residues in foods using solid-phase extraction clean-up cartridges

Doong

Lee²

1999

Analyst

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Fourteen organochlorine pesticide residues in fatty foods were determined using a simple and rapid procedure based on solid-phase extraction (SPE) clean-up cartridges with octadecyl (C18)-bonded porous silica, a tandem C18 and Florisil column, Alumina-N and Florisil. A Florisil cartridge eluted with 12 ml petroleum ether-ethyl ether (95 + 5) was the most efficient clean-up procedure capable of eliminating the matrix interference and satisfying the agreed acceptable recovery for the large numbers of organochlorine pesticides in nine kinds of foods having different fat contents. Average recoveries of organochlorine pesticides in shellfish, fish and meats ranged from 77 to 105%, 84 to 98% and 85 to 107%, respectively. In addition, analysis of a certified Standard Reference Material (SRM 1945) verified the satisfactory performance of Florisil clean-up cartridge. This SPE method not only yielded comparable results for nonfatty foods, but also provided a reliable separation and quantification of organochlorine pesticides for analyzing a large number of foods with a wide range of fat content.

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“…Methods to extract organic chlorine pesticides from rendered chicken fats without removing significant quantities of fats using supercritical fluoroform were discussed (Ashraf- Khorassani and Taylor, 1996) was selective and did not extract fatty materials. Offline SFE/solid phase cleanup of pesticides in produce (Lehotay and Eller, 1995; and mussel samples using Florisil (Ling and Teng, 1997) was recently reported. On-line systems with an SFE/cleanup apparatus and a chromatograph require an interface between the two components.…”

Section: Introductionmentioning

confidence: 99%

Integrated SFE/SFC/MS System for the Analysis of Pesticides in Animal Tissues

Voorhees

Gharaibeh

Murugaverl

1998

J. Agric. Food Chem.

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The development of an integrated system for an on-line supercritical fluid extraction/cleanup/supercritical fluid chromatography/mass spectrometry analysis (SFE/SFC/MS) of thermally labile carbamate pesticides from beef and chicken meat samples is discussed. A key to the system is the mixed stationary phase (7% diol in C18) used in the cleanup column to separate target analytes from the extracted lipid matrix interferences. The detection limits of the system at 2:1 signal to noise ratio were 200 and 175 ppb for bendiocarb and carbaryl, respectively. The reproducibility of the present system was not totally favorable due to trapping problems, resulting from frequent clogging of either the cryogenic retention gap between the extraction cell and the SFC or the actual restrictor in the retention gap. Operating in an integrated mode, 53% of the experiments were completed without complications connected to extracting and detecting the analyte. Keywords: Carbamates; pesticides; SFE; SFC; integrated system; on-line cleanup; animal tissues

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Supercritical fluid extraction and clean-up of organochlorine pesticides and polychlorinated biphenyls in mussels

Cited by 32 publications

References 26 publications

Investigation of organochlorine pesticides (OCPs) in mollusks collected from coastal sites along the Chinese Bohai Sea from 2002 to 2004

Investigation of organochlorine pesticides (OCPs) in mollusks collected from coastal sites along the Chinese Bohai Sea from 2002 to 2004

Determination of organochlorine pesticide residues in foods using solid-phase extraction clean-up cartridges

Integrated SFE/SFC/MS System for the Analysis of Pesticides in Animal Tissues

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