A novel stereoselective removal behavior of isomeric endrin and dieldrin pesticides from sample solution is demonstrated using nanocomposite of graphene oxide (GO) and iron oxide (FeO) magnetic nanoparticles (MNPs). The removal efficiency of endrin and dieldrin was found higher when GO-MNPs was used as a separating probe than the individual use of GO and MNPs. The removal efficiency of both the pesticides was found to be more favorable when the dosage amount of GO-MNPs was 30 mg for 30-min contact time with pH 4.0 at room temperature. The good correlation of determination (R ) with 0.975 and 0.973 values obtained for endrin and dieldrin, respectively demonstrated a well fitting of Langmuir adsorption isotherm model. The higher removal percentage (86.0%) and higher slope value of Langmuir adsorption isotherm were estimated for endrin compared to dieldrin (74.0%). The reason for higher adsorption percentage of endrin is due to the endo-position of oxygen atom in molecule favors more interaction of molecules with GO-MNPs compared to the exo-position of oxygen present in dieldrin. In addition, the higher value of R for endrin and dieldrin demonstrated better suitability of pseudo-first-order and pseudo-second-order kinetic models, respectively. The advantages of the present method are use of simple UV-vis spectrophotometry for monitoring and low-cost use of GO-MNPs nanomaterial for the removal of pesticides from sample solution.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s11356-017-0159-z | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Unmasking the spread, carcinogenic-non carcinogenic risk characterization, and source fingerprinting of organochlorine pesticides (OCPs) in soil and vegetables of Gaya, Bihar, India.
Environ Geochem Health
November 2024
Department of Environmental Science, Central University of South Bihar, SH-7, Gaya Panchanpur road, Post- Fatehpur, P.S- Tekari, District-Gaya, 824236, India.
The use of organochlorine pesticides (OCPs) in specific regions is still prevalent. Moreover, the impact of past utilization can be observed in the present environmental matrices. The present study monitored the extent of contamination of OCPs in the soil and vegetable samples of Gaya, Bihar, India.
View Article and Find Full Text PDFWe developed a simultaneous determination method for the environmentally persistent organochlorine pesticides aldrin/dieldrin, γ-BHC, DDT, endrin, and heptachlor in beef products. In the method, we adopted incremental reduction for sample collection in order to improve the uniformity of the samples. In incremental reduction, a sample was ground and spread to an even thickness, divided into sections, and collected in an equal amount from each section.
View Article and Find Full Text PDFAgricultural-Derived organochlorine pesticide residues impact on macroinvertebrate community in an Afrotropical Stream.
Heliyon
July 2024
Ecology and Environmental Biology Unit, Department of Animal Biology, School of Life Sciences, Federal University of Technology, P.M.B. 65, Minna, Niger State, Nigeria.
This study evaluated the impact of pesticide application through agricultural activities in Chanchaga River, Nigeria, using macroinvertebrate data sets obtained for six months (September 2021-February 2022). Four (4) stations, characterized by various agricultural activities, were sampled along the river. Analysis of the water samples for organochlorine pesticide residues (OCP) using Gas Chromatography-Mass Spectrometry (GC/MS) at the peak of the two seasons revealed a high concentration of eleven isomers of organochlorine, which ranged from 0.
View Article and Find Full Text PDFOrganochlorine pesticide residues and urinary arsenic and fluoride levels in mothers and their newborns who are residents of rural areas in Durango State, Mexico.
Int J Environ Health Res
July 2024
Universidad Juárez del Estado de Durango, Facultad de Ciencias Químicas, Gómez Palacio, México.
Maternal and prenatal exposure to organochlorine pesticides (OCP), arsenic (As), and fluoride (F) is a critical public health concern. The present study assessed serum OCP residues and urinary As and F levels in mother and newborn pairs who are residents of rural areas of Durango State, Mexico, from August 2018 to February 2019. Levels of OCP, As, and F were measured in serum and urine samples by Gas chromatography - Tandem mass spectrometry (GC - MS/MS), Hydride generation - Atomic fluorescent spectrometry (HG-AFS, and ion-selective electron analysis (ISE), respectively, in 60 binomial mothers - newborns.
View Article and Find Full Text PDFOrganochlorine pesticide contamination of soils and dust from an urban environment in the Niger Delta of Nigeria.
Sci Total Environ
August 2024
School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa.
The concentrations, sources, and risk of twenty organochlorine pesticides (OCPs) in soils and dusts from a typical urban setting in the Niger Delta of Nigeria were examined. The Σ20 OCP concentrations (ng g) varied from 4.49 to 150 with an average value of 32.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!