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Sampling Methods: Sample Types

Sampling Methods: Sample Types

Sampling materials are classified into three main types: solid, liquid, and gas.
Solid samples include a variety of substances, such as sediments from water bodies, soil, metals, and biological tissues. Two standard methods for extracting sediments from water bodies are grab sampling and piston coring. Grab sampling involves using a device to collect a discrete sediment sample from the bottom of a water body with minimal disturbance. Grab samples do not always represent the entire area due to...

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Updated: Mar 15, 2026

Protocol for Microplastics Sampling on the Sea Surface and Sample Analysis

Protocol for Microplastics Sampling on the Sea Surface and Sample Analysis

Published on: December 16, 2016

A standardized method for sampling and extraction methods for quantifying microplastics in beach sand.

Aiken Besley¹, Martina G Vijver², Paul Behrens³

¹Leiden University College, Leiden University, P.O. Box 13228, 2501 EE The Hague, The Netherlands.

Marine Pollution Bulletin

|September 12, 2016

Summary

This summary is machine-generated.

Microplastic contamination in beach sand is widespread. This study establishes a standard operating procedure for microplastic sampling and extraction to improve research consistency.

Keywords:

Beach sampling Extraction Method standardization Microplastics Standard operating procedure

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Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris

Published on: July 28, 2018

Area of Science:

Environmental Science
Marine Biology
Analytical Chemistry

Background:

Microplastics are pervasive environmental contaminants, frequently ingested by wildlife.
Significant microplastic levels are detected in beach sand, but studies lack methodological standardization.
Variability in sampling and extraction methods hinders comparative analysis of microplastic pollution.

Purpose of the Study:

To review and identify critical parameters in microplastic sampling and extraction from beach sand.
To assess the impact of methodological variations on study outcomes through a case study.
To develop a standardized operating procedure for microplastic analysis in beach sand.

Main Methods:

Comprehensive literature review to identify key sampling and extraction variables.
Case study analysis to quantify the impact of identified variations.
Development of a standard operating procedure based on empirical findings.

Main Results:

Sampling depth, location, extraction repetitions, and settling times are critical sources of methodological variation.
Methodological differences significantly impact microplastic quantification in beach sand.
The case study validated the influence of these parameters on study outcomes.

Conclusions:

Standardized methods are essential for reliable microplastic research in beach environments.
The proposed standard operating procedure will enhance comparability and accuracy in microplastic studies.
Consistent methodology will advance our understanding of microplastic pollution and its ecological implications.