Determination of chromium(iii) by differential pulse stripping voltammetry at a chitosan-gold nanocomposite modified screen printed electrode
By Wu, Shixin and Chandra Sekar, Nadia and Tan, Swee Ngin and Xie, Hong and Ng, Sum Huan
Published in Anal. Methods
The Royal Society of Chemistry
2016
Abstract
We report the modification of screen printed electrodes by simple electrodeposition of chitosan-gold nanocomposites and the application of the modified electrodes for the determination of trivalent chromium, Cr(iii), using differential pulse stripping voltammetry (DPSV) for the first time. The electrodes exhibited a significantly increased sensitivity compared to an unmodified screen printed electrode and allowed for the sensing of Cr(iii) ions with a linear range from 1 to 100 [small mu ]M and a limit of detection of 0.4 [small mu ]M. Besides, the electrodes were used for the determination of chromium in industrial wastewater and showed acceptable results. The disposable nature of the screen printed electrodes makes them attractive for the on-site analysis of Cr(iii) in environmental and biological samples.
Microsoft is Ending Support for Windows 7
Microsoft will discontinue support for Windows 7 on January 14, 2020 which means Gamry will also be discontinuing support for Windows 7. If you are upgrading to Windows 10, like many companies and institutions, you need to be running Version 7 of our s oftware . Please note that only USB and Ethernet-based instruments can run in Version 7. Eligible users can download the latest version of our software through our online Client Portal .
If you haven't already registered your instrument, you can do so through the Client Portal .
Please email Technical Support if you have any questions regarding this transition. Please be sure to include your instrument model and serial number when contacting us.