Speciation analysis of organotin compounds (OTCs) by a simultaneous hydride generation–liquid/liquid extraction and GC–MS determination

Yáñez, Jorge; Riffo, Paula; Mansilla, Héctor D.; Bravo, Manuel; Quiroz, Waldo; Santander, Paola

doi:10.1016/j.microc.2016.01.002

Cited by 12 publications

(1 citation statement)

References 25 publications

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“…Analyses for OTCs have traditionally been performed by gas chromatography, coupled to sensitive and selective detection systems . The most common detectors include flame photometric detectors, pulsed flame photometric detectors, and mass spectrometers (MS) . The main disadvantage of these methods is that they usually involve tedious and time‐consuming extraction and derivatization steps prior to chromatographic analysis, which affects the accuracy of the overall analytical procedure, especially for the analysis of complex natural matrices.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of three organotin pesticides in fruits and vegetables by high‐performance liquid chromatography/tandem mass spectrometry

Chen

Mou

et al. 2019

Rapid Comm Mass Spectrometry

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Rationale:The presence of organotins in the environment affects food safety, making it important to monitor the levels of organotin pesticides (OTPs) in fruit and vegetable samples. Methods:In the present study, a simple and low cost method for simultaneous determination of three OTPs (azocyclotin, fenbutatin oxide and triphenyltin hydroxide) in vegetable and fruit samples was developed and validated, based on solid-phase extraction and liquid chromatography/tandem mass spectrometry.Results: Extraction with acetonitrile containing 0.2% formic acid positively affected the recoveries of the three OTPs. Moreover, the simultaneous purification of the three OTPs was the most efficient using mixed-mode cation-exchange cartridges and 5.0% ammonium hydroxide in methanol as eluent, and, in this case, mild matrix effects (−9.3% to 21.6%) were obtained for the three OTPs monitored. The developed method reached limits of quantification of 1 μg kg −1 , and linearity was satisfactory, with correlation coefficients >0.995. A fortification study showed that when spiked at 1.0-50.0 μg kg −1 the mean trueness values were from 72.3 to 110.0% in all matrices (three vegetables and three fruits). The intra-day precision was <14.1%, and the inter-day precision (n = 11) was <18.2%. Conclusions:The proposed method was successfully applied to the simultaneous analysis of three OTPs in vegetables and fruits.

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Section: Introductionmentioning

confidence: 99%

Simultaneous determination of three organotin pesticides in fruits and vegetables by high‐performance liquid chromatography/tandem mass spectrometry

Chen

Mou

et al. 2019

Rapid Comm Mass Spectrometry

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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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Accurate Determination of Tributyltin in Tannery Wastewater by a New Procedure Using ID-HPLC–ICP-MS Combined with Low Temperature Extraction

et al. 2017

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Speciation analysis of organotin compounds (OTCs) by a simultaneous hydride generation–liquid/liquid extraction and GC–MS determination

Cited by 12 publications

References 25 publications

Simultaneous determination of three organotin pesticides in fruits and vegetables by high‐performance liquid chromatography/tandem mass spectrometry

Simultaneous determination of three organotin pesticides in fruits and vegetables by high‐performance liquid chromatography/tandem mass spectrometry

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

Accurate Determination of Tributyltin in Tannery Wastewater by a New Procedure Using ID-HPLC–ICP-MS Combined with Low Temperature Extraction

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