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Accumulation and Analysis of Cuprous Ions in a Copper Sulfate Plating Solution
Published on: March 20, 2019
The development of sequential injection analysis coupled with lab-on-valve for copper determination
Tapparath Leelasattarathkul1, Saisunee Liawruangrath, Mongkon Rayanakorn
1Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Division of Analytical Chemistry, Department of Chemical Technology, Rajamanjala University of Technology Krungthep, Bangkok 10120, Thailand.
Talanta
|October 31, 2008
Summary
A new sequential injection analysis (SIA) method accurately determines copper(II) in wastewater. This automated technique offers rapid, efficient analysis with reduced reagent and sample consumption.
Area of Science:
- Analytical Chemistry
- Environmental Chemistry
Background:
- Copper(II) is a crucial environmental analyte.
- Accurate determination of copper(II) is essential for wastewater monitoring.
Purpose of the Study:
- To develop a novel sequential injection analysis (SIA) method for copper(II) determination.
- To validate the SIA method for wastewater analysis.
Main Methods:
- Lab-on-valve sequential injection analysis (SIA) with air segmentation.
- Spectrophotometric detection utilizing the reaction between copper(II) and Zincon.
- Method validation including linearity, precision, detection limits, and quantification limits.
Main Results:
- Beer's Law was obeyed for copper(II) in the range of 0.1-2.0 mgL⁻¹ (R²=0.9985).
- The method achieved a relative standard deviation of 2.0% for 0.5 mgL⁻¹ copper(II).
- Detection and quantification limits were 0.05 and 0.17 mgL⁻¹, respectively, with a sample throughput of 120 h⁻¹.
Conclusions:
- The developed SIA method provides a rapid, automated, and efficient approach for copper(II) determination in wastewater.
- This method offers advantages over traditional batch methods, including reduced reagent and sample consumption and minimal waste generation.
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