Abstract
A downscaling in true titration based on a simple sequential injection analysis-lab-at-valve (SIA-LAV) has been proposed. A titrant solution was stepwise aspirated into a titration LAV chamber and a titration curve was obtained by monitoring the change in the solution color spectroscopically. This fully-automated SIA-LAV system required less volume of the sample/reagents, only a micro-liter scale, compared to the conventional method. The system was investigated with complexometric titration and acid-base titration. Application of the developed technique to some real samples has been demonstrated.
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The authors acknowledge the Commision on Higher Education for the supports to S. Chanpaka and TRF Distinguished Research Professor Award Grant to K. Grudpan. P. Paengnakorn was supported by Chiang Mai University through Center of Excellence for Innovation in Analytical Science and Technology.
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Paengnakorn, P., Chanpaka, S., Watla-Iad, K. et al. Towards Green Titration: Downscaling the Sequential Injection Analysis Lab-at-valve Titration System with the Stepwise Addition of a Titrant. ANAL. SCI. 35, 219–221 (2019). https://doi.org/10.2116/analsci.18N018
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DOI: https://doi.org/10.2116/analsci.18N018