2007
DOI: 10.1080/03067310701325026
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Critical evaluation of various extraction procedures for the speciation of butyltin compounds in sediments

Abstract: The efficiency of different extraction procedures for the simultaneous determination of butyltin compounds in marine sediments by gas chromatography-mass spectrometry (GC-MS) was critically evaluated in the present work. Three different polar solvents (acetic acid, a mixture of acetic acid with methanol, and a mixture of acetic acid, methanol, and water) and three different extraction approaches (mechanical shaking, ultrasonic, and microwave-assisted extraction) were used for the extraction of butyltin compoun… Show more

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Cited by 15 publications
(4 citation statements)
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“…An HP-MS5 capillary column (30 m×0.25 mm×0.25 μm) was used. Detailed operational conditions were described elsewhere (Milivojevič Nemanič et al 2007b). …”
Section: Apparatusmentioning
confidence: 99%
“…An HP-MS5 capillary column (30 m×0.25 mm×0.25 μm) was used. Detailed operational conditions were described elsewhere (Milivojevič Nemanič et al 2007b). …”
Section: Apparatusmentioning
confidence: 99%
“…For this reason, a comprehensive summary of current trends in extraction techniques for Sn and As species will provide a good starting point for newcomers to this field. 415 Three polar solvents (acetic acid, a 3 + 1 mixture of acetic acid and methanol, and 1 + 1 + 1 mixture of acetic acid, methanol and water) combined with three different modes of extraction (mechanical shaking, ultrasonic and microwave-assisted) were assessed for the determination of butyltins in sediments by GC-MS. 416 It was concluded that a 30 min ultrasonic extraction at 50 C with 100% acetic acid provided quantitative recoveries and was simpler than the microwave-assisted procedure. The novelty of the method reported by Carvalho et al 417 was the combination of headspace solid phase micro-extraction (SPME) with GC-MS upgraded by the introduction of tandem MS. Butyltins were extracted with a 1 + 1 mixture of 6 M HCl and ethanol from 0.5 g of sediment in a ultrasonic bath before headspace SPME was performed on a 50 mL aliquot of extract.…”
Section: Speciation Studiesmentioning
confidence: 99%
“…In a companion study on the extraction of butyltin compounds from marine sediments, the optimum conditions were ultrasonic extraction (30 min) in 100% acetic acid. 104 Mono-and di-organotin compounds, especially butyl-and octyl-tin species, are used in the PVC industry as heat and light stabilizers. Under certain conditions, migration of these stabilizers from packaging material to food can occur.…”
Section: Gas Chromatography-electron Ionization Mass Spectrometry (Gc...mentioning
confidence: 99%