Matrix Effect on Butyltin Analysis of Sediments and Fish Tissues by GC-PFPD

Santos, Dayana Moscardi dos; Marchi, Mary Rosa Rodrigues de; Godoi, Ana F. L.; Turra, Alexander; Montone, Rosalinda Carmela

doi:10.5935/0103-5053.20130129

Cited by 3 publications

(5 citation statements)

References 3 publications

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“…In addition, the MBT values in PACS-2 are not certified. Similar results indicating worst analytical performance for MBT have been observed by several studies (Montigny et al, 1998, Aguerre et al, 2000, Santos et al, 2013. However, considering the small differences between Table 2: Analytical curve equation, matrix effect (% ME), square of regression coefficient (R 2 ), instrumental limits of detection (LOD i ), instrumental limits of quantification (LOQ i ), sediment method limits of quantification (LOQ sed ) and biota method limits of quantification (LOQ bio ) for BTs prepared in pure solvent (sol) , sediment matrix (sed) and mussel tissues matrix (bio) .…”

Section: Precision and Accuracysupporting

confidence: 89%

Environmental matrices effect in butyltin determinations by GC/MS

Castro¹,

Costa²,

Prímel³

et al. 2024

Ecotoxicol. Environ. Contam.

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The present study evaluated the matrix effect associated to determination of butyltin compounds (tripropyltin (TPrT), tributyltin (TBT), dibutyltin (DBT) and monobutyltin (MBT)) in sediment and mussel tissues using derivatization by Grignard reaction and quantification by gas chromatography coupled mass spectrometry (GC-MS). A non-negligible matrix effect was verified for sediments (54.2, 20.3, 13.6 and-53.6 %) and mussel tissues (-12.5,-32.0, 59.4 and 65.7 %) for TPrT, TBT, DBT and MBT respectively. However, this matrix effect was prevailed by preparing the analytical curves using standard addition techniques. Thus, an analytical method was optimized and validated for a more accurate and precise determination of butyltin compounds in sediment and mussel tissue samples.

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Section: Precision and Accuracysupporting

confidence: 89%

Environmental matrices effect in butyltin determinations by GC/MS

Castro¹,

Costa²,

Prímel³

et al. 2024

Ecotoxicol. Environ. Contam.

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“…Surrogate recovery was above 80 % in all analyses and was used to correct the final extract concentration. Other quality control parameters, such as matrix effect observed and accuracy and precision of applied methods, are described in detail in Santos et al (2013).…”

Section: Methodsmentioning

confidence: 99%

“…The analysis of the BTs followed Santos et al (2013) and Godoi et al (2003), for sediments and SPM, and Cristale et al (2012), for fish tissues. The steps for this analysis included extraction using an acid (acetic acid) and a nonpolar solvent (toluene) followed by derivatization using Grignard reagent and a cleanup step using alumina or Florisil®.…”

Section: Methodsmentioning

confidence: 99%

“…Sample ITA1, located at 9.5 m deep, had a negative redox potential (−226 mV) and high amount of fine sediment particles (95 %), which are ideal conditions for TBT preservation. However, the ITA1 and BAB1 sediment samples also contained higher sulfur content (1.15 and 1.04 %, respectively) that directly affected the determination of BTs in the sediments and SPM because of interference to the chromatographic response during GC-PFPD analysis (Santos et al 2013). The integration parameters for these samples (but not in the others with equal and/or high sulfur content) were influenced by the existence of a sulfur peak at the same retention time, which made the quantification unreliable.…”

Section: Bts In Sedimentsmentioning

confidence: 97%

“…The species collected from each sampling point are described in Table 1. A pool of ten fish tissues (liver and gill) was prepared for each sampling point and stored in aluminum foil at −20°C until the analysis of the BTs could be performed according to Santos et al (2013).…”

Section: Study Area and Samplingmentioning

confidence: 99%

See 2 more Smart Citations

Distribution of butyltin compounds in Brazil’s southern and southeastern estuarine ecosystems: assessment of spatial scale and compartments

Santos

Turra²,

Marchi

et al. 2016

Environ Sci Pollut Res

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Butyltin compounds (BTs), including tributyltin (TBT) and its degradation products, dibutyltin and monobutyltin, have been found in a diversity of aquatic systems and causing toxic effects in target and nontarget organisms. They enter in coastal systems through different sources (as antifouling paints, industrial effluents, etc.) where they interact with biotic and abiotic components, and their distribution is commonly determined by the morphological and hydrodynamic conditions of the coastal systems. In this study, we discuss the contamination by BTs on a spatial scale (eight estuaries with three subareas each) and in different compartments of the estuaries (sediments, suspended particulate matter (SPM), and estuarine catfish tissues (liver and gills). Lower concentrations of BTs were found in the sediments (n.d. to 338 ng g(-1)) in comparison to studies before a ban of TBT in antifouling paints was enacted, mostly indicating an old input or preservation related with sediment properties and composition. For SPM samples (n.d. to 175 ng L(-1)) as well as in fish tissues (n.d. to 1426 ng g(-1)), the presence of these compounds was frequent, especially in the fish due to their movement throughout the estuaries and the potential to assess point sources of BTs. These results indicate that BTs persist in the environment, with variation in amounts between investigated estuaries and even at locations inside the same estuary, because of ideal preservation conditions, transport to remote areas, and input from different sources.

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Fast and Feasible Ultrasound-Assisted Pretreatment for the Determination of Organotin Compounds in Environmental Samples

Quintas

Oliva

Álvarez

et al. 2018

Arch Environ Contam Toxicol

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The goal of this study was to improve an already established reference method, such as the one devoted to organotin compounds determination (Reference Method for Marine Pollution Studies, No. 59, UNEP). The proposed upgrade consists of replacing the mechanical shaking by ultrasound energy and applying low temperature throughout the whole procedure. The optimization of the new operational conditions was performed by using a factorial design. Quality control was performed using a certified sediment reference material (PACS-2) for sediments (82.5-97% of recovery) and recoveries on spiked samples for suspended particulate matter (SPM) and mussels (94-100%). The proposed procedure was applied to surface sediment samples, SPM, and native bivalve mollusks (Brachidontes rodriguezii) collected in Bahia Blanca estuary, a very industrialized zone. The relative standard deviation (RSD %) of the environmental samples were less than 7.9%. It is important to note that the proposed procedure reduced the sample pretreatment time about seven times.

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Matrix Effect on Butyltin Analysis of Sediments and Fish Tissues by GC-PFPD

Cited by 3 publications

References 3 publications

Environmental matrices effect in butyltin determinations by GC/MS

Environmental matrices effect in butyltin determinations by GC/MS

Distribution of butyltin compounds in Brazil’s southern and southeastern estuarine ecosystems: assessment of spatial scale and compartments

Fast and Feasible Ultrasound-Assisted Pretreatment for the Determination of Organotin Compounds in Environmental Samples

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