Low-Cost Optical Fibre Chemical Sensor for Use in Liquid Acid-Base Titration
Ahmad, Musa, Kaskandar, Mohd. Rosli and Tan, Teng Wong (2003) Low-Cost Optical Fibre Chemical Sensor for Use in Liquid Acid-Base Titration. Pertanika Journal of Science & Technology, 11 (1). pp. 31-41. ISSN 0128-7680
A simple low-cost portable optical fibre chemical sensor instrument has been developed in this study by using a laser diode as a light source and solid-state photodiode as a detector. This inexpensive device is shown to have a good response and can be used in three different liquid acid-base titration studies Le. strong acid-strong base, strong acid-weak base and weak acid-strong base, by using a suitable pH indicator. The results obtained by using this instrument were found comparable with titration data obtained by using conventional pH meter.
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