Optimization of a QuEChERS Based Analytical method for the Determination of Organophosphorus and Synthetic Pyrethroid Pesticide Residues in Betel Leaf

2021 ◽  
pp. 1-12
Author(s):  
M. D. H. Prodhan ◽  
Marina Afroze ◽  
Afroza Begum ◽  
M. S. Ahmed ◽  
D. Sarker
Keyword(s):  
Analytical Method ◽  
Pesticide Residues ◽  
Synthetic Pyrethroid ◽  
Betel Leaf ◽  
Pyrethroid Pesticide

scholarly journals Determination of Organochlorine and Synthetic Pyrethroid Pesticide Residues in Water Samples Collected from Different Locations of Bangladesh

2021 ◽  
Vol 12 (02) ◽  
pp. 11-21
Author(s):  
Mohammad Dalower Hossain Prodhan ◽  
Md. Sultan Ahmed ◽  
Nirmal Kumar Dutta ◽  
Debasish Sarker ◽  
Syed Nurul Alam
Keyword(s):  
Water Samples ◽  
Pesticide Residues ◽  
Synthetic Pyrethroid ◽  
Pyrethroid Pesticide

Determination of pyrethroid pesticide residues in fatty materials by solid-matrix dispersion partition, followed by mini-column size-exclusion chromatography

1999 ◽  
Vol 833 (1) ◽  
pp. 19-34 ◽  
Author(s):  
Alfonso Di Muccio ◽  
Patrizia Pelosi ◽  
Danilo Attard Barbini ◽  
Tiziana Generali ◽  
Silvana Girolimetti ◽  
...  
Keyword(s):  
Size Exclusion Chromatography ◽  
Pesticide Residues ◽  
Size Exclusion ◽  
Solid Matrix ◽  
Pyrethroid Pesticide ◽  
Exclusion Chromatography

scholarly journals Determination of Levels of Organochlorine, Organophosphorus, and Pyrethroid Pesticide Residues in Vegetables from Markets in Dar es Salaam by GC-MS

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
John A. M. Mahugija ◽  
Farhat A. Khamis ◽  
Esther H. J. Lugwisha
Keyword(s):  
Public Health ◽  
Mass Spectrometry ◽  
Pesticide Residues ◽  
Dar Es Salaam ◽  
Gas Chromatography Mass Spectrometry ◽  
Pyrethroid Pesticide ◽  
Maximum Residue Limits ◽  
Samples And Sampling ◽  
Dar Es Salaam City

This study investigated the levels of pesticides and metabolites in vegetables from major markets in Dar es Salaam city, Tanzania. Samples of fresh cabbage, spinach, and onions from the markets were analysed for pesticide residues. Extraction was performed using acetone followed by dichloromethane : cyclohexane mixture and the extracts were cleaned up using Florisil. The compounds were determined by gas chromatography-mass spectrometry (GC-MS). Pesticides and metabolites were detected in 72.2% of the samples. The detected pesticide residues and their highest mean concentrations were p,p′-DDT 4.00 × 10−3 mg/kg, p,p′-DDD 6.40 × 10−1 mg/kg, o,p′-DDD 1.00 × 10−2 mg/kg, α-endosulfan 6.00 × 10−1 mg/kg, β-endosulfan 2.10 × 10−1 mg/kg, chlorpyrifos 3.00 mg/kg, and cypermethrin 4.00 × 10−2 mg/kg. The most frequently detected compounds were p,p′-DDD and chlorpyrifos. The order of contamination was spinach > cabbage > onions. Generally, there were no significant variations in concentrations of pesticide residues among samples and sampling sites, which indicated similarities in contamination patterns. The concentrations of contaminants were above the maximum residue limits (MRLs) in 33.3–50% of the samples. The findings indicated risks and concerns for public health.

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