A new polymeric adsorbent for screening and pre-concentration of organotin compounds in sediments and seawater samples

Puri, B. K.; Muñoz-Olivas, Riánsares; Cámara, Carmen

doi:10.1016/j.sab.2003.12.010

Cited by 25 publications

(18 citation statements)

References 26 publications

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“…16 -31 Screening methods based on ETAAS were developed for seawater, 16,19 -21,24,26,29,31 freshwater, 20,27,30 wastewater, 25 marine organisms 17,18,22 and sediments. 18,22,23,28,31 However most of these methods were focused on TBT determination. Only two recent studies reported the combined determination of OTs.…”

Section: Speciation Analysis and Environmentmentioning

confidence: 99%

“…Only two recent studies reported the combined determination of OTs. 29,31 Bermejo-Barrera et al 29 determined total butyltins (TBT, DBT and MBT) in sea water by column preconcentration with tropolone-modified Amberlite XAD-2 resin and ETAAS determination, with adequate recovery and precision and a limit of detection (LOD) of 13 ng l −1 . Cámara and coworkers 31 reported the determination of TBT, DBT, MBT and TPhT in water and sediment samples by preconcentration in a polymeric sorbent and subsequent ETAAS determination.…”

Section: Speciation Analysis and Environmentmentioning

confidence: 99%

“…An LOD of 30 ng l −1 was reported. 31 Generally, these ETAAS screening methods present the following problems: (a) OTs have very low concentrations, especially in aquatic samples, therefore an adequate preconcentration and a very low detection limit (a few ng l −1 ) should be achieved; (b) OTs have different extraction properties in several extraction solvents or media, therefore a common procedure for all of them should be developed; and (c) different OTs present different thermal stabilities and different sensitivities in ETAAS. The volatility of the organotins, especially in organic extracts, is high.…”

Section: Speciation Analysis and Environmentmentioning

confidence: 99%

“…17,18,22,23,28 Recently, a coating of Zr + W + Ir was used as permanent modifier. 31 The aim of this study was the development of a simple screening method with sufficiently low method LOD for the determination of organotin compounds, monitoring of which in the aquatic environment is required by European legislation, namely TBT, TPhT and DBT. For this purpose, an ETAAS method was developed and optimized.…”

Section: Speciation Analysis and Environmentmentioning

confidence: 99%

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A screening method for the determination of toluene extractable organotins in water samples by electrothermal atomic absorption spectrometry and rhenium as chemical modifier

Thomaidis

Stasinakis

Lekkas

2007

Applied Organom Chemis

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A simple screening method for the determination of toluene-extractable organotin compounds in water samples was developed. Organotins [tributyl tin (TBT), triphenyltin (TPhT) and dibutyl tin (DBT)] were extracted from 2 l of water sample with 10 mL of toluene in the presence of 2.5% (v/v) CH 3 COOH and 1.2% (w/w) NaCl. Aliquots of 240 µl of the toluene extracts were subjected to electrothermal atomic absorption spectrometry, utilizing the hot injection technique (injection temperature 120 • C) and chemical modification. Under these conditions, an enrichment factor of approximately 2000 was achieved. A comparative study of chemical modifiers was performed. Ten metals and mixtures of them were tested and the best results were obtained with 5 µg of Re. The characteristic mass was 90 pg and the instrumental limit of detection was 0.8 µg l −1 (as Sn), for all compounds tested. The overall limit of detection of the method was 2 ng l −1 (as Sn) for an injection aliquot of 240 µl. Quantitative recoveries were obtained for TBT and TPhT, whereas the DBT recovery was 70%. Addition of 0.5% (w/v) of tropolone in the extraction media resulted in 100% recovery of all organotins tested (TBT, DBT, monobutyl tin and TPhT), whereas, at the same time, inorganic tin was practically not recovered at 100-fold excess. The developed methodology was applied to fresh (lake) and marine waters of Greece and levels between <2 and 223 ng l −1 were determined.

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Section: Speciation Analysis and Environmentmentioning

confidence: 99%

Section: Speciation Analysis and Environmentmentioning

confidence: 99%

Section: Speciation Analysis and Environmentmentioning

confidence: 99%

Section: Speciation Analysis and Environmentmentioning

confidence: 99%

See 2 more Smart Citations

A screening method for the determination of toluene extractable organotins in water samples by electrothermal atomic absorption spectrometry and rhenium as chemical modifier

Thomaidis

Stasinakis

Lekkas

2007

Applied Organom Chemis

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“…However, they all require special instruments, which not only make the method complex and time-consuming but also unavailable to many laboratories. In recent years, solid phase extraction (SPE) techniques with high preconcentration factors have become popular, and these methods have also been used for the preconcentration of tin and tin compounds in water samples [17,18]. However, a relatively larger volume of water sample is always needed when applying this technique.…”

mentioning

confidence: 99%

Preconcentration and Determination of Tin in Water Samples by Using Cloud Point Extraction and Graphite Furnace Atomic Absorption Spectrometry

Yuan

Jiang

et al. 2005

Microchim Acta

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Abstract. A method based on cloud point extraction and graphite furnace atomic absorption spectrometry (GFAAS) was developed for the analysis of trace tin in water samples. After cloud point extraction, the tin in the water samples was preconcentrated and successfully separated from most interferents. During the procedure, 8-hydroxyquinoline (8-HQ) was used as chelating reagent, and Triton X-114 was added as surfactant. The parameters affecting the sensitivity and the extraction efficiency, such as solution pH, concentration of 8-HQ and Triton X-114, equilibration temperature and centrifuge time, were evaluated and optimized. Under the optimum conditions, a preconcentration factor of 96.2 was obtained for a 20 mL water sample. The detection limit (LOD) was as low as 0.012 ng mL À1 , and the analytical curve was linear in the range of 0.05-2.0 ng mL À1 with satisfactory precision (RSD <4.1%). The proposed method was successfully applied to the determination of trace tin in water samples with recoveries in the range of 85.0-112.0%.

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Flame and Graphite Furnace Atomic Absorption Spectrometry in Environmental Analysis

Sperling

2022

Encyclopedia of Analytical Chemistry

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Atomic absorption spectrometry (AAS) is a well‐established technique for the quantitative determination of elements in environmental materials at trace and ultratrace levels. AAS is an optical atomic spectrometric technique based on the measurement of the specific absorption originated from the free, unionized atoms in the gas phase. For transferring the analyte to free atoms, different types of atomizers are in use, out of which the flame and the graphite furnace are the most often used atomizers. Typical detection limits of flame AAS (FAAS) are of the order of 1–100 μg L −1 , making it a perfect tool for the determination of minor and trace elements, at least for contaminated samples. Graphite furnace AAS (GFAAS), offering detection limits which are about a factor of 20–200 lower than for FAAS, is the standard method for many trace elements especially for background values, and for unpolluted samples, such as freshwater and biological materials. AAS in its conventional configuration is a single element technique, which has to be used in a sequential mode when more than one element has to be determined. However, there are commercial instruments available, that can be used for the determination of six to eight elements simultaneously. While most manufacturers provide instruments working with line sources, one manufacturer has commercialized high‐resolution instruments working with continuum sources (HRCS‐AAS).

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A new polymeric adsorbent for screening and pre-concentration of organotin compounds in sediments and seawater samples

Cited by 25 publications

References 26 publications

A screening method for the determination of toluene extractable organotins in water samples by electrothermal atomic absorption spectrometry and rhenium as chemical modifier

A screening method for the determination of toluene extractable organotins in water samples by electrothermal atomic absorption spectrometry and rhenium as chemical modifier

Preconcentration and Determination of Tin in Water Samples by Using Cloud Point Extraction and Graphite Furnace Atomic Absorption Spectrometry

Flame and Graphite Furnace Atomic Absorption Spectrometry in Environmental Analysis

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