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Related Experiment Video

Updated: Jun 21, 2026

Extraction and Detection of Geosmin and 2-Methylisoborneol in Water and Fish using High-Capacity Sorptive Extraction Probes and GC-MS

Extraction and Detection of Geosmin and 2-Methylisoborneol in Water and Fish using High-Capacity Sorptive Extraction Probes and GC-MS

Published on: July 3, 2025

Optimizing conditions for methylmercury extraction from fish samples for GC analysis using response surface

P Hajeb¹, S Jinap, F Abu Bakar

¹Center of Excellence for Food Safety Research, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.

Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment

|August 15, 2009

Summary

This summary is machine-generated.

This study optimized methylmercury extraction from fish using response surface methodology (RSM). The developed method achieves 94% recovery, crucial for accurate environmental and food safety analysis.

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Last Updated: Jun 21, 2026

Extraction and Detection of Geosmin and 2-Methylisoborneol in Water and Fish using High-Capacity Sorptive Extraction Probes and GC-MS

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Published on: August 29, 2014

Area of Science:

Analytical Chemistry
Environmental Science

Background:

Methylmercury in fish poses significant health risks.
Accurate quantification of methylmercury is essential for risk assessment.

Purpose of the Study:

To optimize methylmercury extraction from fish samples for Gas Chromatography (GC) analysis.
To establish optimal experimental conditions using Response Surface Methodology (RSM).

Main Methods:

Response Surface Methodology (RSM) was employed to optimize four variables: acid concentration, cysteine concentration, solvent volume, and extraction time.
Gas Chromatography (GC) with a microelectron capture detector was used for analysis.
Second-order polynomial model and multiple regression analysis were applied to experimental data.

Main Results:

The developed method achieved a detection limit of 7 ng g(-1) for methylmercury in fish samples.
Optimum extraction conditions were determined: 12.2 M acid, 2.4% cysteine, 1.5 ml solvent, and 35 min extraction time.
Mean recovery under optimum conditions was 94%, with an R(2) value of 0.977, indicating a good fit to the model.

Conclusions:

RSM effectively optimized methylmercury extraction, yielding high recovery rates.
The validated method demonstrates good agreement for analyzing methylmercury in fish samples.
This optimized extraction method enhances the accuracy of methylmercury determination in fish for safety assessments.