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Updated: Jun 18, 2026

Characterization and Application of Passive Samplers for Monitoring of Pesticides in Water
10:34

Characterization and Application of Passive Samplers for Monitoring of Pesticides in Water

Published on: August 3, 2016

Passive sampling as a tool for obtaining reliable analytical information in environmental quality monitoring

Bozena Zabiegała1, Agata Kot-Wasik, Magdalena Urbanowicz

  • 1Department of Analytical Chemistry Chemical Faculty, Gdansk University of Technology, 11/12 G. Narutowicza Str., 80-233, Gdańsk, Poland. pszczola@chem.pg.gda.pl

Analytical and Bioanalytical Chemistry
|November 20, 2009
PubMed

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Sampling is a crucial step in analytical chemistry, allowing researchers to collect representative data from a large population. Common sampling methods include random, judgmental, systematic, stratified, and cluster sampling.
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Sampling Methods: Overview

A sample refers to a smaller subset representative of a larger population. In analytical chemistry, studying or analyzing an entire population is often impractical or impossible. Therefore, samples are used to draw inferences and generalize the whole population. The sampling method selects individuals or items from a population to create a sample. Standard sampling methods include random, judgemental, systematic, stratified, and cluster sampling. 
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Data Validation01:15

Data Validation

Method validation is a crucial process in analytical chemistry designed to confirm that a given method consistently produces reliable and high-quality results. This process is essential when a method is applied to different sample matrices or when procedural modifications are made, ensuring that the results meet acceptable standards across various applications.
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For AAS measurements, samples must be introduced as clear solutions, often requiring extensive preliminary treatment to dissolve materials like soils, animal tissues, and minerals. Common methods for sample preparation include treatment with hot mineral acids, wet ashing, combustion in closed containers, high-temperature ashing, or fusion with reagents.
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