The false positive effect of residue of sulphur sources on dithiocarbamate analysis based on CS<sub>2</sub> measurement

Arslan, Sinan; Demirkesen, Ilkem; Yiğitkaya, Sema; Dağaşan, Ö.; Sakallı, Feridun Nihat; Oztürk, Selma

doi:10.1080/19440049.2018.1562235

Cited by 7 publications

(2 citation statements)

References 13 publications

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“…The evaluation was conducted on sulphur dioxide and dithiocarbamates present in apricots before and after the sulphurisation process. The study shows that measuring total CS 2 as the sum of DTCs after sulphurisation can lead to false positives because sulphur compounds (or also pesticides) are present in products and can be considered DTCs by mistake [72]. Consequently, the formation of CS 2 is not an unequivocal indication of the presence of the DTCs [71].…”

Section: Hot Acid Digestion-based Methodsmentioning

confidence: 97%

Dithiocarbamates: Properties, Methodological Approaches and Challenges to Their Control

Campanale,

Triozzi,

Ragonese

et al. 2023

Toxics

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Dithiocarbamates (DTCs) are a group of chemicals used primarily as fungicides, although they are exploited for various other applications. DTCs represent one of the oldest classes of broad-spectrum fungicides employed worldwide to control fungal diseases on many crops. Due to their ease of synthesis, low production costs (cheap and readily available starting materials) and a fungicidal activity with a multi-site mode of action, they are still among modern agriculture’s most extensively used pesticides. Although the environmental degradation in air, water, and soil is relatively rapid due to photolysis and/or hydrolysis, they are among the most frequently detected pesticides in the European Union (EU), also with a high frequency of maximum residue level (MRL) exceedances. The current review aims to comprehensively survey all aspects of DTCs, including the environmental fate, toxicity and analytical methods for determining parental compounds and degradation products in environmental and food samples. Furthermore, the accumulation of carbamate and dithiocarbamate pesticides in vegetables, fruits, bioindicator organisms and human biological samples, as well as their health effects on humans, are also considered in this study.

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Section: Hot Acid Digestion-based Methodsmentioning

confidence: 97%

Dithiocarbamates: Properties, Methodological Approaches and Challenges to Their Control

Campanale,

Triozzi,

Ragonese

et al. 2023

Toxics

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“…Dithiocarbamate (DTC) fungicides are the most common class of nonsystemic fungicides used in agriculture registered in Brazil, Canada, USA, Japan, and European Union . They have a broad spectrum of activity against various plant pathogens, low acute toxicity, and low production costs. − They are also used to manage resistance and broaden the spectrum of activity when combined with modern systemic fungicides. , …”

Section: Introductionmentioning

confidence: 99%

Clean-up Strategy for Dithiocarbamate Fungicide Determination in Soybean by GC-ITD-MS and GC-PFPD: Method Development and Validation

Silva

Wickert

Pizzutti

et al. 2021

J. Agric. Food Chem.

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Food matrices consist of many components with different physical and chemical properties that may influence instrumental robustness. The soybean contains fatty coextractives which may have a deleterious effect on the gas chromatography (GC) system. In this study, the efficiencies of PSA, C 18 OH, C 18 , silica, aluminum oxide, and Florisil, as dSPE clean-up sorbents, were evaluated by the high-performance liquid chromatography (HPLC) diode-array detector and evaporative light-scattering detector analysis. The dithiocarbamates in soybean samples are determined as CS 2 using acidic hydrolysis and isooctane partitioning, followed by GC-PFPD and GC-ITD-MS analyses. The linearity of the analytical curves, the instrument limit of detection matrix effects, the trueness and precision, and the method limit of quantification (LOQ) were assessed in the validation study. Milled soybean was spiked with thiram solution at three concentration levels (corresponding to 0.05, 0.1, and 0.5 mg CS 2 kg −1 ) for recovery determination. Silica appeared to be an effective and cheap sorbent to remove coextracted matrix components without causing any CS 2 losses. Recoveries were in the range of 68−91%, with relative standard deviations ≤ 8.7%. The method LOQ was 0.05 mg CS 2 kg −1 , and both GC-ITD-MS and GC-PFPD systems appeared to be appropriate and complementary to determine dithiocarbamate residues in soybean extracts.

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Development and validation of a GC-MS method for analysis of Dithiocarbamate Fungicide residues in the Spices Cardamom (Elettaria cardamomom) and black pepper (Piper nigrum)

et al. 2022

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The false positive effect of residue of sulphur sources on dithiocarbamate analysis based on CS₂ measurement

Cited by 7 publications

References 13 publications

Dithiocarbamates: Properties, Methodological Approaches and Challenges to Their Control

Dithiocarbamates: Properties, Methodological Approaches and Challenges to Their Control

Clean-up Strategy for Dithiocarbamate Fungicide Determination in Soybean by GC-ITD-MS and GC-PFPD: Method Development and Validation

Development and validation of a GC-MS method for analysis of Dithiocarbamate Fungicide residues in the Spices Cardamom (Elettaria cardamomom) and black pepper (Piper nigrum)

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The false positive effect of residue of sulphur sources on dithiocarbamate analysis based on CS2 measurement

Cited by 7 publications

References 13 publications

Dithiocarbamates: Properties, Methodological Approaches and Challenges to Their Control

Dithiocarbamates: Properties, Methodological Approaches and Challenges to Their Control

Clean-up Strategy for Dithiocarbamate Fungicide Determination in Soybean by GC-ITD-MS and GC-PFPD: Method Development and Validation

Development and validation of a GC-MS method for analysis of Dithiocarbamate Fungicide residues in the Spices Cardamom (Elettaria cardamomom) and black pepper (Piper nigrum)

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The false positive effect of residue of sulphur sources on dithiocarbamate analysis based on CS₂ measurement