Analysis of toxic wastes in tissues from aquatic species

Crouch, Michael D; Barker, Steven A.

doi:10.1016/s0021-9673(97)00089-7

Cited by 36 publications

(7 citation statements)

References 105 publications

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“…3, we can see that the extracts obtained with acid alumina were cleaner than that obtained with Florisil, which extended the chromatography lifetime and improved the detection and quantitation limits, 27,28 and insured the veracious quantitation of certain OCPs that can't do using Florisil, for example a-HCH and heptachlor.…”

Section: Study Of Adsorption For Matrix Components Of Acid Alumina Anmentioning

confidence: 92%

Matrix Solid Phase Dispersion‐Accelerated Solvent Extraction for Determination of OCP Residues in Fish Muscles

Shen

Yuan

Zhang

et al. 2011

J Chinese Chemical Soc

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A rapid, sensitive and accurate matrix solid phase dispersion-accelerated solvent extraction (MSPD-ASE) method for selective determination of sixteen organochlorine pesticide (OCP) residues in fish samples has been developed and validated. 2 g fresh fish muscle was dispersed with 10 g anhydrous sodium sulfate and 2 g acid alumina thoroughly, and loaded into the stainless-steel extraction cell containing 6 g of acid alumina and 10 g anhydrous sodium sulfate. The temperature 60°C and two extraction cycles of 5 min gave adequate extraction efficiency using DCM-hexane (3:7, v/v) mixture as solvent. Not only the lipids, but also other co-extracts, which peaks mostly located in the forepart of chromatograms and maybe interfere the identification or quantitation of analytes, were eliminated exhaustively, while analytes were extracted selectively. Sixteen OCPs were identified by retention time of standards and quantified using mirex as internal standards. These detected OCPs were confirmed by GC-MS in real samples. The performance of proposed method was evaluated and validated: the detection limits were 0.008-0.05 ng g -1 , relative standard deviations were 1.9-5.0%, and recoveries were 91.0-104.1% spiked at 10 ng g -1 level. The accuracy and precision of proposed method were equal to or better than that of traditional Soxhlet extraction method.

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Section: Study Of Adsorption For Matrix Components Of Acid Alumina Anmentioning

confidence: 92%

Matrix Solid Phase Dispersion‐Accelerated Solvent Extraction for Determination of OCP Residues in Fish Muscles

Shen

Yuan

Zhang

et al. 2011

J Chinese Chemical Soc

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“…Endosulfans are the only OC pesticides in this list that are currently applied in the study area. Organochlorine pesticides were extracted from frog tissues using the Solid Phase Matrix Dispersion method (MSPD; Crouch and Barker, 1997;Barker, 2000). Bioaccumulation of OCPs were determined with the EPA 625 method, using a Hewlett-Packard HP 6890/5973 Gas Chromatography/Mass Spectrometry (GC/MS) system equipped with an HP 5-MS capillary column (30 m length, 0.25 mm ID, 0.25 µm phase film thickness).…”

Section: Bioaccumulation Analysismentioning

confidence: 99%

Bioaccumulation of organochlorine pesticides in frogs of the Rana esculenta complex in central Italy

Fagotti¹,

Morosi²,

Rosa³

et al. 2005

Amphib Reptilia

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Concentrations of commonly used organochlorine pesticides (OCPs) were determined in tissues of 23 adult and 24 larval water frogs of two coexisting species (Rana lessonae and the hemiclonal hybrid R. esculenta) and in the water of their breeding pond in an agricultural zone in Umbria, central Italy, where increased occurrence of infectious diseases and distinctly oversized tadpoles were recently observed. The concentrations of OCP in tissues of both species were lower than those in the water of their breeding pond, except for DDT, which was more concentrated in adult frogs than in pond water (bioaccumulation factor 7 for R. lessonae, 15 for R. esculenta). Total OCP concentration and adult body weight were positively correlated for both species, which is consistent with bioaccumulation. In accord, adults contained higher OCP concentrations than tadpoles. Oversized tadpoles had higher OCP concentrations than normal tadpoles. Mean OCP concentrations in individual organs were about an order of magnitude higher than those in whole-frog homogenates. They were highest in brain, higher in ventral than in dorsal skin, and moderately high in ovaries; transmission of bioaccumulation loads to the next generation is therefore possible. The observed OCP concentrations appear too low to directly cause mortality in water frogs, but effects of cumulative exposure to low-level pollutants and their synergistic interactions with the effects of other natural and anthropogenic environmental stressors are unknown.

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“…Indeed, bivalves are directly exposed and can be used as bioindicator organisms in order to evaluate environment contamination. Such studies have been yet initiated on polycyclic aromatic hydrocarbon (PAH), polychlorobiphenyls (PCB) or organochlorated compounds (OC) [3]. The current evaluation of the existing method dedicated to phenylurea and triazine shows a lack of efficient validated method especially in edible tissues [4].…”

Section: Introductionmentioning

confidence: 99%

“…Crouch and Barker [3] have studied supercritical fluid extraction (SFE) and matrix solid-phase extraction (MSPD) preparation. The first technique is very efficient because of its selectivity, but conditions must be adapted for each analyte and therefore the technique cannot be applied to a wide range of residues.…”

Section: Introductionmentioning

confidence: 99%

LC–ESI-MS/MS determination of phenylurea and triazine herbicides and their dealkylated degradation products in oysters

Bichon

Dupuis

Bizec

et al. 2006

Journal of Chromatography B

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Analysis of toxic wastes in tissues from aquatic species

Cited by 36 publications

References 105 publications

Matrix Solid Phase Dispersion‐Accelerated Solvent Extraction for Determination of OCP Residues in Fish Muscles

Matrix Solid Phase Dispersion‐Accelerated Solvent Extraction for Determination of OCP Residues in Fish Muscles

Bioaccumulation of organochlorine pesticides in frogs of the Rana esculenta complex in central Italy

LC–ESI-MS/MS determination of phenylurea and triazine herbicides and their dealkylated degradation products in oysters

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