Risk assessment of mixture formulation of spirotetramat and imidacloprid in chilli fruits

Chahil, Gurminder Singh; Mandal, Kousik; Sahoo, Sanjay Kumar; Singh, Balwinder

doi:10.1007/s10661-014-4105-y

Cited by 25 publications

(10 citation statements)

References 15 publications

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“…spirotetramat-enol, was not detected in any of the sample. The present findings are in agreement with Chahil et al, (2014) [2] who studied dissipation of siprotetramat in green chilli fruits and soil at 120 and 240 g a.i.ha -1 , recommended and double the recommended dose. The initial deposits were recorded as 0.55 and 1.22 mg kg -1 for both doses, respectively, which reached below detection limit in 5 th and 7 th day at recommended and double recommended dose, respectively.…”

Section: Resultssupporting

confidence: 93%

“…The residue of imidacloprid reached below its limit LOQ of 0.05 mg kg -1 in 7 th and 10 th days at recommended and double the recommended dosages, respectively. The results obtained were found to be in agreement with Chahil et al, (2014) [2] reported the persistence of imidacloprid in chilli fruits by following three application of a mixture formulation of imidacloprid at 1000 and 2000 mL ha -1 . The initial residue reached below detectable limit on 7 th and 10 th and Half-life periods were observed to be 1.41 and 1.65 days at recommended and double the recommended dosages, respectively.…”

Section: Resultssupporting

confidence: 90%

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Dissipation of combination product spirotetramat 120 SC + imidacloprid 120 SC (Movento Energy) in/on tomato

Wasu¹,

Tathode²,

Bande³

et al. 2020

Int. J. Chem. Stud.

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Studies on the dissipation pattern of spirotetramat and imidacloprid in/on tomato fruits were undertaken by following three foliar applications at recommended and double the recommended doses of combination product spirotetramat 120 SC + imidacloprid 120 SC @ (75 and 150 g a.i./ha) at fruiting stage. Residues of spirotetramat and imidacloprid dissipated with half-life of 1.93, 1.37 and 1.40, 1.92 days, at both the doses respectively. The residues reached below quantification limit (BQL) on 5th day in spirotetramat and 7 th day in imidacloprid at the recommended dose. Considering this, Pre-harvest interval (PHI) of 7 days can be suggested for combination product with reduced risk of insecticide residues in tomato.

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Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 90%

Dissipation of combination product spirotetramat 120 SC + imidacloprid 120 SC (Movento Energy) in/on tomato

Wasu¹,

Tathode²,

Bande³

et al. 2020

Int. J. Chem. Stud.

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“…In recent years, there have been few studies focused on the analysis of BYI08330 in cotton (Pandiselvi, Sathiyanarayanan, & Ramesh, ), grapes (Vemuri, Rao, & Swarupa, ), chilli (Chahil, Mandal, Sahoo, & Singh, ), mangoes (Mohapatra, Deepa, Lekha, et al, ) and spinach (Chen et al, ). A few studies have focused on some of the metabolites of BYI08330, particularly B‐enol, which has been reported in grapes (Mohapatra, Kumar, & Prakash, ), okra, brinjal leaves, green chillies, red chillies (Singh, Mandal, Sahoo, Bhardwaj, & Battu, ), apples (Han et al, ), mangoes and cabbages (Mohapatra, Deepa, & Jagadish, ).…”

Section: Introductionmentioning

confidence: 99%

“…Recent publications discussing BYI08330 and its four metabolites in different matrices include various food contexts, such as pepper (S. S. Li, Liu, et al, ), cabbages, tomatoes, potatoes, apples, peaches and cucumbers (Zhu et al, ). Current analytical methods for the determination of spirotetramat and its metabolites are high‐performance liquid chromatography (HPLC) (Vemuri et al, ; Chahil et al, ; Singh et al, ; Mohapatra, Deepa, & Jagadish, ; Pandiselvi et al, ), ultra high‐performance chromatography coupled with tandem mass spectrometry (UPLC‐MS/MS) (S. S. Li, Liu, et al, ; Zhu et al, ), liquid chromatography with tandem mass spectrometry (LC‐MS/MS) (Chen et al, ) and gas chromatography mass spectrometry (GC/MS) (Mohapatra et al, ). To the best of our knowledge, there has been only one study focused on the dynamics of spirotetramat and its four metabolites in citrus marmalade during home processing by UPLC‐MS/MS (Liu et al, ).…”

Section: Introductionmentioning

confidence: 99%

Dissipation, residues and risk assessment of spirotetramat and its four metabolites in citrus and soil under field conditions by LC‐MS/MS

Zhang

Chen

Wang

et al. 2017

Biomedical Chromatography

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A modified Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) method for the simultaneous determination of spirotetramat and its four metabolite residues in citrus, peel, pulp and soil was developed and validated by liquid chromatography with tandem mass spectrometry (LC-MS/MS). The samples were extracted with acetonitrile (1%, glacial acetic acid, v/v) and purified using primary secondary amine and octadecylsilane. The limit of detection was 0.01-0.13 mg/kg, whereas that of quantification was 0.02-0.40 mg/kg for spirotetramat and its metabolites. The average recoveries of spirotetramat, spirotetramat-enol, spirotetramat-mono-hydroxy, spirotetramat-enol-glucoside and spirotetramat-ketohydroxy in all matrices were 73.33-107.91%, 75.93-114.85%, 76.44-100.78%, 71.46-103.19% and 73.08-105.27%, respectively, with relative standard deviations < 12.32%. The dissipation dynamics of spirotetramat in citrus and soil followed first-order kinetics, with half-lives of 2.3-8.5 days in the three sampling locations. The terminal residues of spirotetramat in four matrices at the three locations were measured below the 1.0 mg/kg maximum residue limit set by China, and residues were found to be concentrated on the peel. The risk assessment of citrus was evaluated using risk quotients. The risk quotient values were found to be significantly <1, suggesting that the risk to human health was negligible when using the recommended doses of spirotetramat in citrus. These results could provide guidance for the safe and proper application of spirotetramat in citrus in China.

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“…técnica cromatográfica con detección por espectrometría de masas, siendo el número de analitos por cada método desde unos pocos hasta muchos.Estudios sobre la persistencia de residuos de SP se han llevado a cabo en chili, algodón y mango[56][57][58] ya que es importante obtener la mayor cantidad de información para determinar el es necesario realizar un elevado número de análisis en tiempos cortos o en entornos poco dotados técnicamente. En este sentido, los métodos inmunoanalíticos o inmunoensayos se basan en la unión selectiva, reversible y no covalente entre un antígeno y un anticuerpo que lo reconoce con una elevada afinidad.…”

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Desarrollo de métodos inmunoquímicos para la determinación de sustancias tóxicas en alimentos y aguas

Cedeño¹,

Eudoro²

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The aim of this doctoral thesis is the study, development and validation of different immunochemical methods for determining chemical contaminants in produce and water, in a way that they may contribute to improving food quality and therefore to assure consumer safety. Spirotetramat is a highly efficient new-generation pesticide, marketed worldwide for use as insecticide in many agricultural crops. It has systemic properties, since short after absorption it translocates through both the xylem and the phloem, thanks to the fact that it is transformed by the plant into the much more polar spirotetramat-enol. Consequently, the residue definition for this insecticide in foods of plant origin with analytical purposes also includes said metabolite. On the other hand, anatoxin-a is a secondary alkaloid with acute neurotoxicity that can be found in fresh water. This toxin is produced by seven different genera of cyanobacteria, and has been detected in lakes and other water resources on all continents. The analysis of substances like spirotetramat and anatoxin-a is currently carried out by chromatographic methods like HPLC-MS. These techniques are highly sensitive and reliable; however, they require highly qualified personnel and expensive, non-portable equipment. Nowadays, the immunochemical methods, such as the ELISA (Enzyme-Linked ImmunoSorbent Assay) or the LFIA (Lateral Flow ImmunoAssay), constitute excellent complementary analytical options to instrumental strategies, since they are fast and inexpensive analytical methods, and are also very versatile so they can be adapted to particular analytical needs, such as screening assays for large numbers of samples or portable tests with visual reading of the results. The antibody affinity and specificity from a collection of spirotetramat and anatoxin-a immunoreagents was characterized in order to select conjugate/antibody pairs suitable for the development of competitive ELISA and LFIA tests. The assay conditions were optimized, and a study of the influence of different physicochemical factors over the analytical parameters of the selected immunoassays was carried out. Subsequently, the influence of the food matrix, particularly grape, grape juice and wine, as well as water from different sources, over the assay signal and sensitivity was evaluated. The different affinity of the available antibodies towards spirotetramat and spirotetramatenol led us to optimize the sample treatment procedure, so a hydrolysis step to transform spirotetramat into spirotetramat-enol in a controlled, rapid and quantitative way, was included. Thus, it was possible to provide results in the form of the sum of the concentration of both compounds in the sample, as required by current legislation. In addition, a procedure ~ 13 ~ using QuEChERS technology was developed to extract residues of this insecticide from grape samples, and polyvinylpolypyrrolidone was used to reduce interferences from wines and juices. In the case of waters, a simple filtration was applied to remove suspended particles. Mi...

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Risk assessment of mixture formulation of spirotetramat and imidacloprid in chilli fruits

Cited by 25 publications

References 15 publications

Dissipation of combination product spirotetramat 120 SC + imidacloprid 120 SC (Movento Energy) in/on tomato

Dissipation of combination product spirotetramat 120 SC + imidacloprid 120 SC (Movento Energy) in/on tomato

Dissipation, residues and risk assessment of spirotetramat and its four metabolites in citrus and soil under field conditions by LC‐MS/MS

Desarrollo de métodos inmunoquímicos para la determinación de sustancias tóxicas en alimentos y aguas

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