Abstract
A new solid‐phase extraction method was developed for trace analysis of copper. The method is based on the retention of copper as methylthymol blue complex on naphthalene–methyltrioctyl ammonium chloride adsorbent in a column. The adsorbed metal complex was eluted from the column with nitric acid, and its copper content was determined by flame atomic absorption spectrometry. The effect of different variables such as pH, reagent concentration, solution flow rate, and interfering ions on the recovery of the analyte was investigated. The calibration graph was linear in the range 5–200 ng mL−1 of copper in the initial solution with r=0.9976. The 3Sb detection limit was 2 ng mL−1, and the relative standard deviation for eight replicate measurements of 25 and 100 ng mL−1 of copper was 4.2% and 1.7%, respectively. The method was applied to the determination of copper in river and sewage water samples.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
