Microwave-Assisted Leaching of Organotin Compounds from Sediments for Speciation Analysis

Donard, Olivier F. X.; Lalere, Béatrice; Martin, F.; Łobiński, Ryszard

doi:10.1021/ac00119a008

Cited by 130 publications

(63 citation statements)

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“…In this case, sonification is used in most procedures. Very recently, a focused microwave field has been introduced to reduce extraction time from hours to several munites (Donard et al, 1995). In some cases, after the acid or polar solvent extraction, a liquid-liquid extraction (LLE) with a non-miscible solvent (benzene, CH 3 Cl-DCM, ETOAc-MeOH, DCM, hexane, cyclohexane, toluene, hexane-ETOAc) is used to recover OTs from the extract.…”

Section: An Overview Of Speciation Methods and Determination Techniqumentioning

confidence: 99%

Speciation Methods for the Determination of Organotins (OTs) and Heavy Metals (MHs) in the Freshwater and Marine Environments

Ndibewu¹,

McCrindle²,

Mokgalaka³

2012

Environmental Health - Emerging Issues and Practice

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Section: An Overview Of Speciation Methods and Determination Techniqumentioning

confidence: 99%

Speciation Methods for the Determination of Organotins (OTs) and Heavy Metals (MHs) in the Freshwater and Marine Environments

Ndibewu¹,

McCrindle²,

Mokgalaka³

2012

Environmental Health - Emerging Issues and Practice

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“…High sulfur concentrations result in interferences of the organosulfur compounds with the analytes. Selective retention of sulfur on a column packed with activated copper powder is one of the desulfurization techniques that have been reported [48,49]. It is described as being very effective in preventing high sulfur background that adversely affects peak separation, sensitivity, and overall performance of the chromatographic system [48].…”

Section: Sediment Extractionmentioning

confidence: 99%

Determination of the pesticides considered as endocrine‐disrupting compounds (EDCs) by solid‐phase extraction followed by gas chromatography with electron capture and mass spectrometric detection

Valsamaki

Sakkas²,

Albanis

2007

J of Separation Science

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An SPE method followed by GC-electron capture detection (ECD) with confirmation by MS for the trace determination of four pesticides considered as endocrine-disrupting compounds (EDCs) in natural waters and sediments has been developed. Target analytes, fenarimol, fenvalerate, pendimethalin, and vinclozolin, belong to different chemical groups and are used mainly in agriculture. In the present study, analysis employs an offline SPE step for the extraction of the target analytes from natural waters. Sonication and subsequent SPE clean-up was used for extraction and purification of the sediment samples which were finally treated with activated copper powder. The type of SPE disk, eluents as well as solution parameters including pH value, and concentrations of salts and humic substances were examined for the efficiency of the method. The recoveries of all pesticides were in relatively high levels, ranging from 75 to 97% for waters and 71 to 84% for sediment samples. Both methods were applied to real water and sediment samples and the presence of the tested compounds was investigated.

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“…The solid-phase extraction (SPE) is an attractive approach when the solid-phase is housed in cartridges or disks due to the possibility of integration in on-line flow analysis [17,18]. For sediment or soil digestion and pretreatment, microwave-assisted derivatization solvent extraction (MADSE) provided an useful procedure [19]. Extraction techniques based on solid-phase microextraction (SPME) offer attractive alternatives to the current methods and can minimize the problems associated with those methods [20,21].…”

Section: Introductionmentioning

confidence: 99%

Speciation analysis of butyltin compounds in Chinese seawater by capillary gas chromatography with flame photometric detection using in-situ hydride derivatization followed by headspace solid-phase microextraction

Jiang

Liu

Yang

2000

Analytica Chimica Acta

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A solvent-free method for the extraction of butyltin compounds from seawater by headspace solid-phase microextraction (SPME) is presented. The butyltin chlorides present in seawater was converted to its hydride forms by sodium tetrahydridoborate prior to extraction. A polydimethylsiloxane (PDMS) coated silica 100 m fiber is introduced into the headspace over seawater to extract butyltin hydrides. After extraction, the fiber is directly injected to the injector of gas chromatograph (GC) for desorption, separation and quantification. A laboratory modified flame photometric detector using quartz surface-induced tin emission (QSIL-FPD) was used throughout the experiment. The detection limits obtained with GC-QSIL-FPD for monobutyl, dibutyl, and tributyltin are 19.4, 1.5 and 0.5 ng/l as Sn, respectively. The proposed method was applied to the speciation analysis of butyltin compounds in seawater from different part of the Chinese harbors.

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Microwave-Assisted Leaching of Organotin Compounds from Sediments for Speciation Analysis

Cited by 130 publications

References 0 publications

Speciation Methods for the Determination of Organotins (OTs) and Heavy Metals (MHs) in the Freshwater and Marine Environments

Speciation Methods for the Determination of Organotins (OTs) and Heavy Metals (MHs) in the Freshwater and Marine Environments

Determination of the pesticides considered as endocrine‐disrupting compounds (EDCs) by solid‐phase extraction followed by gas chromatography with electron capture and mass spectrometric detection

Speciation analysis of butyltin compounds in Chinese seawater by capillary gas chromatography with flame photometric detection using in-situ hydride derivatization followed by headspace solid-phase microextraction

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