Pesticide Fate Research Group

You are here: / CA-Water Science Center Home / Pesticide Fate Research Project / Analytical Methods

Associated Publications

ANALYTICAL METHODS: Pesticides - Water

A Multi-residue Method for the Analysis of Pesticides and Pesticide Degradates in Water Using HLB Solid-phase Extraction and Gas Chromatography-Ion Trap Mass Spectrometry

Hladik, M.L., Smalling, K.L., and Kuivila, K.M., 2008, Bull. Environ. Contam. Toxicol., v. 80, pp. 139-144.

Analysis of the herbicide diuron, three diuron degradates, and six Neonicotinoid insecticides in water – method and application

Hladik, M.L., and Calhoun, D.L., 2012, USGS Scientific Investigations Report 2012-5206, yy p.

ANALYTICAL METHODS: Pesticides - Sediments

Methods of analysis—determination of pesticides in sediment using gas chromatography/mass spectrometry

Hladik, M.L., and McWayne, M.M., 2012, USGS Techniques and Methods Report 5-C3, 18 p.

ANALYTICAL METHODS: Pesticides - Tissues

Accumulation of pesticides in pacific chorus frogs (Pseudacris regilla) from California's Sierra Nevada Mountains, USA

Smalling, K. L., G. M. Fellers, et al. (2013). Environmental Toxicology and Chemistry 32(9): 2026-2034.


Reliable analytical methods to measure low levels of pesticides and their degradates in various environmental media provide essential data for characterizing their occurrence, transport, and fate in aquatic environments. Method development includes optimizing concentration, cleanup, and instrumental analysis procedures. Important steps include determining the detection limits needed to measure environmentally-relevant concentrations and the most relevant matrices to be measured. In addition, field protocols are optimize to ensure that analytes could be reliably detected in the various environmental matrices. Field sampling and analytical methods were tested and validated using environmental samples collected in the initial stages of each study. Where possible, multi-residue methods were developed to analyze for a large number of pesticides and their degradates in a variety of matrices. Pesticide use continues to change over time so analytical methods require constant updating to include new compounds.

Analytes in Water

Compound Class
Method Detection Limit (ng/L)

Analytes in Sediment

Compound Class
Method Detection Limit (µg/kg)

Accessibility FOIA Privacy Policies and Notices logo U.S. Department of the Interior | U.S. Geological Survey
For Page Information: Send Us a Message
Page Last Modified: Friday, 15-Jun-2018 17:47:08 EDT