Multi-residue pesticides analysis in water samples using reverse phase high performance liquid chromatography (RP-HPLC)

Rajput, Sneh; Kumari, Arpna; Arora, Saroj; Kaur, Rajinder

doi:10.1016/j.mex.2018.07.005

Cited by 26 publications

(5 citation statements)

References 8 publications

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“…Detailed studies on rivers and wetlands are being investigated by various researchers. However, studies on pond water bodies have been often neglected and only few studies are available in the literature mostly for physicochemical, metal, and pesticides analyses (Rehan et al, 2017;Rajput et al, 2017;Rajput et al, 2018;Kaur and Hundal, 2018;Rajput et al, 2019). Phthalates' detection in water bodies has been not reported earlier in the same geographical region but similar studies have been conducted by other researchers in the adjacent areas.…”

Section: Introductionmentioning

confidence: 94%

Seasonal fluctuations in phthalates’ contamination in pond water: A case study

Rajput

Kumari

Sharma

et al. 2023

EJSS

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Phthalates are endocrine disruptors, reported to cause deformities and reproductive damages in animals. Numerous studies reported the presence of phthalates in water samples of rivers, wetlands, and estuaries, while the scenario in case of ponds is different, however they are reported as an integral part of biosphere. In this study, the level of phthalates’ contamination in the water samples collected from the different ponds of Amritsar district for four consecutive seasons in two years was analysed. The maximal level of phthalate contamination was found in samples collected during the monsoon season (July 2015) of first year of sampling followed by post-monsoon (October 2015) and winter season (January 2016). S8 sampling site was found to be the most phthalate contaminated site followed by S1=S11>S2=S9=S4=S5=S7>S6=S3>S10. Benzyl butyl phthalate was most abundant (found in 32% water samples) followed by di-n-butyl and dimethyl phthalate, while diallyl phthalate and diethyl phthalate were not detected. The two main drivers for these seasonal variations were observed to be temperature and precipitation. Hence, this data will be useful to explain the temporal and spatial distributions of phthalates in aquatic ecosystem, as well as to devise cost-effective ways to reduce their ecological footprints.

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Section: Introductionmentioning

confidence: 94%

Seasonal fluctuations in phthalates’ contamination in pond water: A case study

Rajput

Kumari

Sharma

et al. 2023

EJSS

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“…Los espectros ultravioleta para SIM y DIU se muestran en la Figura 1, se pudo apreciar que la longitud de máxima absorción de cada compuesto fue 220 nm (ATR), 219 nm (SIM), 219 nm (CAR), 234 nm (MET), se obtuvieron dos máximos a dos longitudes de onda, 209 y 248 nm (PRO), 211 y 249 nm (DIU). Adicionalmente se obtuvieron los cromatogramas de cada uno de los compuestos, a diferentes longitudes de onda Rajput et al (2018). La longitud de onda elegida para el análisis fue de 218 nm, se escogió dicha longitud de onda tratando de obtener la máxima respuesta posible en la determinación simultánea de todos los compuestos Harshit et al (2017).…”

Section: Selección De La Longitud De Ondaunclassified

“…La mezcla MeOH:Agua (55:45) no permitió una buena separación de los compuestos 2-3 (SIM-CAR), lo que muestra la selectividad del modificador orgánico ACN frente al MeOH cuando son comparados en composiciones de fase móvil de la misma fuerza elutrópica según Rajput et al (2018). La composición de fase móvil MeOH:Agua (50:50), v/v, permitió una separación de los picos 2 y 3 correspondientes a la SIM y CAR, pero el tiempo de análisis se extendió por encima de 30 minutos, lo que hace que no sea apropiado, ya que el análisis se hace demasiado largo.…”

Section: Selectividad Del Modificador Orgánicounclassified

Estudio de las mejores condiciones para determinar plaguicidas en aguas y sedimentos del Río Cauca-Colombia

Sarria-Villa

Corredor

Tobar

2022

reveia

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Las diferentes actividades agrícolas, industriales y económicas generan residuos de plaguicidas que van llegando a los diferentes cuerpos de agua, contaminando lagos, ríos, suelos, biota, entre otros. Para realizar el seguimiento de este tipo de sustancias en el medioambiente es necesario ajustar de la mejor forma el procedimiento de análisis. Este trabajo permitió establecer las mejores condiciones de extracción y determinación de los plaguicidas simazina, atrazina, diuron, carbaril, propanil y metomil en aguas y sedimentos de río. Se emplearon los métodos de extracción en fase sólida (SPE) y ultrasonido para la extracción de plaguicidas presentes en aguas y sedimentos respectivamente. La determinación de los compuestos se realizó por cromatografía líquida de alta resolución (HPLC-UV). El método fue probado en muestras de agua y sedimentos del río Cauca en su paso por el Departamento del Valle del Cauca-Colombia-Sur América. Se obtuvieron porcentajes de recuperación por encima del 87% para cinco de los seis plaguicidas extraídos por SPE y por encima del 80% para todos los plaguicidas extraídos por ultrasonido. Los plaguicidas de mayor frecuencia encontrados en aguas y sedimentos del río Cauca fueron simazina, atrazina y diuron.

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“…The assigned chromatographic conditions gave the best results regarding selectivity and accuracy. Both methods are considered to be economic and suitable for routine low-cost analysis when compared to other hyphenated methods such as GC-MS, GC TQ-MS and LC-MS/MS [43][44][45][46] .…”

Section: Quechers and Chromatographic Conditionsmentioning

confidence: 99%

Appraisal for Edible Use of Vegetable Crops Cultivated in Egypt after Treatment with Selected Insecticides and Fungicides: Insights of Dissipation Rates and Pre-harvest Intervals

2021

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An analytical investigation was carried out to study the dissipation rate of two commonly used pesticides, Thiamethoxam (neonicotinoid insecticide) and propamocarb hydrochloride (carbamate fungicide) applied to four vegetable crops: cucumber, zucchini, lettuce and pepper, after openfield application. Samples were harvested according to a scheduled plan followed by QuEChERS extraction, then thiamethoxam residues were analyzed using a GC-ECD method, while propamocarb HCl residues were analyzed using an HPLC-UV method. Validation parameters were attained for both methods and the kinetic profile was studied which fitted the first -order kinetics where k, t ½ and t90 were calculated. The proper pre-harvest interval (PHI) was studied for each crop to ensure that the residues levels declined to reach below the maximum residue limit (MRL) where the crop is suitable for edible use. These values were found to be different from labelled values which proves that the PHIs are greatly affected by changing weather conditions.

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Multi-residue pesticides analysis in water samples using reverse phase high performance liquid chromatography (RP-HPLC)

Abstract: Graphical abstract

Cited by 26 publications

References 8 publications

Seasonal fluctuations in phthalates’ contamination in pond water: A case study

Seasonal fluctuations in phthalates’ contamination in pond water: A case study

Estudio de las mejores condiciones para determinar plaguicidas en aguas y sedimentos del Río Cauca-Colombia

Appraisal for Edible Use of Vegetable Crops Cultivated in Egypt after Treatment with Selected Insecticides and Fungicides: Insights of Dissipation Rates and Pre-harvest Intervals

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