Related Experiment Video
Updated: Jun 28, 2026

Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies
Published on: July 1, 2016
Preconcentration of trace copper with yeast for river water analysis
1Department of Chemistry for Materials, Faculty of Engineering, Mie University, Mie, Tsu, 514, Japan.
Abstract:
A new preconcentration method with yeast is presented. The method was evaluated for the determination of trace copper in river water by graphite furnace atomic absorption spectrometry (GFAAS). A suitable cultivation bed for preconcentration of copper was 3.5 mg ml(-1) 2-ammonium hydrogen phosphate. The optimal cultivation time and temperature were 2 h and 40 degrees C. Under optimal conditions, copper in aqueous sample was concentrated about seven-fold by yeast. The detection limit was 85 pg ml(-1) (3S/N) for copper in river waters. The yeast preconcentration method was applied to the determination of copper in river waters. The recovery of spiked copper was in the range of 93-100%. By the preconcentration, it was found that ultra trace copper in river waters could be determined without interferences of matrix elements, after only the cultivation and no chemical treatment.
More Related Videos
09:51TD-DFT Guided Advanced E-Eye Sensing Technique for On-site Quantification of Fe, Cr, F, and As in the Environmental, Biological, and Food Samples
Published on: September 19, 2025
06:36Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper
Published on: February 27, 2021
Related Concept Videos
Precipitation and Co-precipitation
Microbial Leaching
Extraction: Advanced Methods