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Multiresidue extraction of current-use pesticides from complex solid matrices using energized dispersive extraction with analysis by gas and liquid chromatography tandem mass spectroscopy

Metadata Updated: July 6, 2024

A multiresidue method for solids (i.e., soil, sediment, sludge) was developed and evaluated for the analysis of pesticides and pesticide degradates. Initially, a well characterized soil was used to determine the recovery of target compounds using an Energized Dispersive Guided Extraction (EDGE) system with two extraction solvents, acetonitrile and 1:1 (v/v) hexane:acetone. Extracts were cleaned using solid-phase extraction (SPE) with graphitized carbon cartridges and three elution solvents, acetonitrile, dichloromethane, and 1:1 (v/v) dichlormethane:ethyl acetate. The individual SPE elutions from the two extraction solvents were analyzed separately via GC-MS/MS and LC-MS/MS for 210 pesticides and pesticide transformation products. Ultimately, the acetonitrile extraction solvent on the EDGE system combined with SPE carbon cleanup with sequential acetonitrile and dichloromethane elutions resulted in extraction recoveries between 70% and 130% for 167 analytes. Recoveries were compared to a previously validated pressurized liquid extraction (PLE) method. The EDGE method was used to analyze field soil (n=2), sediment (n=5), and biosolids (n=2) samples. A strong 1:1 linear correlation (R^2>0.999) was observed between measured concentrations of the two extraction methods. The limits of detection for 5 g samples ranged from 0.09 to 2.56 ng/g.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Maintainer
@Id http://datainventory.doi.gov/id/dataset/a9156d0e61706c35d77113413d4186bc
Identifier USGS:63e68f1dd34efa0476ae329e
Data Last Modified 20230314
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://datainventory.doi.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 6c87f911-9dc7-43d3-81d2-aae085c1c07e
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -121.423822,38.5618202,-121.4231461,38.5623278
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash cc081b5d3a52bf8e7fce2a77d35850e3eaf8348501151ffdd645499454440c7e
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -121.423822, 38.5618202, -121.423822, 38.5623278, -121.4231461, 38.5623278, -121.4231461, 38.5618202, -121.423822, 38.5618202}

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