A Sweep Co-distillation Cleanup Method for Organophosphate Pesticides.

1965 ◽  
Vol 48 (6) ◽  
pp. 1154-1158
Author(s):  
R W Storherr ◽  
R R Watts
Keyword(s):  
Column Chromatography ◽  
Pesticide Residues ◽  
Methyl Parathion ◽  
Organophosphate Pesticides ◽  
Organophosphate Pesticide ◽  
Distillation Method ◽  
Adsorption Column ◽  
Column Method ◽  
Better Than

Abstract A simple sweep co-distillation method which uses the Storherr tube was developed for cleanup of 2 g or less of crude crop extracts which contain organophosphate pesticide residues. Five crops (kale, carrots, apples, strawberries, and potatoes) were fortified at levels of 1.0, 0.5, and 0.1 ppm with a mixture containing Trithion, diazinon, malathion, methyl parathion, and parathion. The sweep co-distillation method was compared with the adsorption column method by use of this mixture. The range of average per cent recoveries were 89–101% and 83–96%, respectively. The cleanup required approximately 20 minutes per sample and was as good as, and in many cases better than, adsorption column chromatography. Detection of the organophosphate pesticides was performed by GLC with the thermionic detector.

Collaborative Study of the Ethyl Acetate Extraction, Sweep Co-distillation Cleanup, and GLC Determination, Using Six Parent Organophosphate Pesticides

1968 ◽  
Vol 51 (3) ◽  
pp. 662-665 ◽  
Author(s):  
R W Storherr ◽  
R R Watts
Keyword(s):  
Ethyl Acetate ◽  
Pesticide Residues ◽  
Methyl Parathion ◽  
Collaborative Study ◽  
Organophosphate Pesticides ◽  
Organophosphate Pesticide ◽  
Specific Group

Abstract Nine chemists in five laboratories collaborated in testing the combined rapid ethyl acetate extraction and sweep co-distillation cleanup method for multiple organophosphate pesticide residues in crops. Pesticides were detected by GLC with the potassium thermionic detector. The six pesticides studied were Diazinon, methyl parathion, malathion, parathion, ethion, and carbophenothion. Six crops—kale, carrots, lettuce, apples, potatoes, and strawberries—were divided into three groups, and each laboratory was selected to work with a specific group. With unknown fortification levels of 1.0 and 0.5 ppm, the collaborators obtained recoveries of 90+% at each level.

Comparison of Some Cleanup Columns for Residue Analysis of Chlorinated and Phosphorus-Containing Pesticides

1971 ◽  
Vol 54 (1) ◽  
pp. 147-149
Author(s):  
B Versino ◽  
M-TH van der Venne ◽  
H Vissers
Keyword(s):  
Column Chromatography ◽  
Residue Analysis ◽  
Chlorinated Pesticides ◽  
Adsorption Column ◽  
Phosphorus Containing ◽  
Better Than

Abstract A comparison is presented of 8 of the most widely used cleanup methods based on adsorption column chromatography for chlorinated and phosphorus-containing compounds and their metabolites. For chlorinated pesticides, all methods show equivalent efficiency and recovery. For phosphorus-containing compounds and metabolites, methods employing columns filled with adsorbent mixtures work better than “all-Florisii” columns.

scholarly journals Kontaminasi Residu Pestisida Organofosfat di Dalam Tanaman Holtikultura

2020 ◽  
Vol 4 (2) ◽  
pp. 98-110
Author(s):  
Widia Purnamasari ◽  
Moch Irfan Hadi ◽  
Eva Agustina
Keyword(s):  
Systematic Review ◽  
Pesticide Residues ◽  
Research Method ◽  
Large Scale ◽  
Organophosphate Pesticides ◽  
Pesticide Use ◽  
Organophosphate Pesticide ◽  
Maximum Residue Limit ◽  
Horticultural Crops ◽  
Risk Of Exposure

Excessive use of organophosphate pesticides is becoming more common these days. This can affect the level of pesticide residues in farmers' crops. Excessive spraying of pesticides can result in environmental pollution both small and large scale. If excessive exposure to these pesticides can cause damage to the ecosystem. The purpose of this study was to determine the level of organophosphate pesticide residues found in horticulture plants. This research method is a systematic review, by analyzing various studies regarding the contamination of organophosphate pesticide residues in horticultural crops. There are 20 studies from within the country. The results obtained in the form of levels of pesticide residues that are still below the threshold of the BMR (Maximum Residue Limit) of pesticides determined by SNI. Two other studies show that no pesticide residue content was detected. Conclusion: This shows that the sample tested is still safe for consumption. Socialization and education about the doses of pesticide use and how to reduce levels of pesticides in horticultural crops are needed to reduce the risk of exposure to pesticides

scholarly journals Kontaminasi Residu Pestisida Organoposfat: Klorpirifos, Fenitrotion dan Profenofos dalam Bivalvia yang Ditangkap di Pesisir Utara Pulau Jawa

2019 ◽  
Vol 22 (2) ◽  
pp. 103
Author(s):  
Chrisna Adhi Suryono ◽  
Agus Sabdono ◽  
Subagiyo Subagiyo
Keyword(s):  
Pesticide Residues ◽  
Aquatic Environment ◽  
North Coast ◽  
Organophosphate Pesticides ◽  
Test Results ◽  
Organophosphate Pesticide ◽  
Anova Test ◽  
Significant Difference ◽  
Seawater Samples

Organophosphate pesticides were widely used in agriculture and OPP which was less accumulative and degradable but It has been found in an aquatic environment. The purpose of this study was to determine the level of organophosphate pesticide residues in bivalve which was fishing in North Coast of Java specifically the Demak and Surabaya.  Bivalvia, sediment and seawater samples were analysed using GC-MS. The results showed that the bivalves of A inaequivalvis, P viridis, A pectinata captured in Demak and Surabaya were contaminated with organophosphate pesticide of chlorpyrifos, fenitrothion and profenofos. The chlorpyrifos was found in all species of bivalves, but the highest concentrations of OPP were profenophos> chlorpyrifos > fenitrothion respectively. ANOVA test results show that there was a very significant difference in OPP residues in bivalves p = 0.009, but there was no difference in OPP residues between locations.Organoposfat pestisida (OPP) banyak digunakan secara meluas dalam pertanian dan OPP tersebut kurang akumulatif dan mudah terurai namun keberdaanya telah di temukan dala lingkungan perairan. Tujuan dari penelitian adalah untuk mengetahui tingkat akumulasi residu pestisida organoposfat yang terdapat di bivalvia yang ditangkap di pesisir Utara Jawa khususnya wilayah Demak dan Surabaya.  Sampel bivalvia, sedimen dan air laut dianalisa menggunakan GC-MS. Hasil penelitian menunjukan bahwa bivalvia A inaequivalvis, P viridis, A pectinata yang ditangkap di Demak dan Surabaya terkontaminasi pestisida organoposfat jenis Klorpirifos, Fenitrotion dan Profenofos. Klorpirifos ditemukan pada semua bivalvia, namun konsentrasi tertinggi OPP secara berurutan profenofos > klorpirifos > fenitrotion.  Hasil uji ANOVA  menunjukan adanya perbedaan yang sangat nyata residu OPP dalam bivalvia p= 0.009,  namun tidak ada berbedaan residu OPP antar wilayah lokasi.

scholarly journals 3D Sphere-like Nickel Tungstate Catalyst for Destroying of Organophosphate Pesticide Methyl Parathion

2019 ◽  
Vol 9 (1S3) ◽  
pp. 216-219
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Pesticide Residues ◽  
Methyl Parathion ◽  
Light Irradiation ◽  
Spectroscopic Techniques ◽  
Organophosphate Pesticide ◽  
Precipitation Technique ◽  
Living Organisms ◽  
First Time

Recently, the appearance of pesticide residues into the environment poses serious risks to the living organisms. In this view, we explored a novel and superior photocatalyst based on nanostructured sphere-like nickel tungstate (NiWO4 NSs) for the degradation of organophosphate pesticide methyl parathion (MP) under visible light irradiation, for the first time. The NiWO4 NSs were tailored through simple precipitation technique and confirmed by several spectroscopic techniques. Fascinatingly, the NiWO4 NSs portrayed superior photodegradation performances towards MP degradation with superior stability.

A smartphone-readable barcode assay for the detection and quantitation of pesticide residues

The Analyst ◽  
2015 ◽  
Vol 140 (16) ◽  
pp. 5518-5525 ◽  
Author(s):  
Juan Guo ◽  
Jessica X. H. Wong ◽  
Caie Cui ◽  
Xiaochun Li ◽  
Hua-Zhong Yu
Keyword(s):  
Pesticide Residues ◽  
Methyl Parathion ◽  
Qualitative Assay

A qualitative assay for pesticide (methyl parathion) residues has been designed as a smartphone-readable barcode.

scholarly journals Evaluation of the relationship between residential orchard density and dimethyl organophosphate pesticide residues in house dust

2018 ◽  
Vol 29 (3) ◽  
pp. 379-388 ◽  
Author(s):  
Jesse J. Plascak ◽  
William C. Griffith ◽  
Tomomi Workman ◽  
Marissa N. Smith ◽  
Eric Vigoren ◽  
...  
Keyword(s):  
House Dust ◽  
Pesticide Residues ◽  
Organophosphate Pesticide ◽  
The Relationship

Validation of a methodology by LC-MS/MS for the determination of triazine, triazole and organophosphate pesticide residues in biopurification systems

2020 ◽  
Vol 1156 ◽  
pp. 122296 ◽  
Author(s):  
Mario Masís-Mora ◽  
Wilson Beita-Sandí ◽  
Javier Rodríguez-Yáñez ◽  
Carlos E. Rodríguez-Rodríguez
Keyword(s):  
Pesticide Residues ◽  
Organophosphate Pesticide ◽  
Biopurification Systems

Light-driven self-powered biosensor for ultrasensitive organophosphate pesticide detection via integration of the conjugated polymer-sensitized CdS and enzyme inhibition strategy

2018 ◽  
Vol 6 (42) ◽  
pp. 6842-6847 ◽  
Author(s):  
Panpan Gai ◽  
Shuxia Zhang ◽  
Wen Yu ◽  
Haiyin Li ◽  
Feng Li
Keyword(s):  
Fuel Cell ◽  
Enzyme Inhibition ◽  
Conjugated Polymer ◽  
Ultrasensitive Detection ◽  
Organophosphate Pesticides ◽  
Organophosphate Pesticide ◽  
Pesticide Detection ◽  
Enzymatic Fuel Cell ◽  
Self Powered

A new light-driven self-powered biosensor based on a photoelectrochemical enzymatic fuel cell was proposed for the ultrasensitive detection of organophosphate pesticides.

Sign in / Sign up

Export Citation Format

Share Document