Abstract − Analytical Sciences, 19(11), 1495 (2003).
A Low-Cost Light-Scattering Detector for the Flow-Injection Nephelometric Determination of Sulfate
Jaroon JAKMUNEE,*1,*2 Yuthpong UDNAN,*1 Richard MORRISON,*3 Ronald BECKETT,*3,*4 Ian MCKINNON,*3 and Kate GRUDPAN*1,*2
*1 Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
*2 Institute for Science and Technology Research and Development, Chiang Mai University, Chiang Mai 50200, Thailand
*3 School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
*4 Water Studies Centre, Monash University, Clayton, Victoria 3800, Australia
*2 Institute for Science and Technology Research and Development, Chiang Mai University, Chiang Mai 50200, Thailand
*3 School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
*4 Water Studies Centre, Monash University, Clayton, Victoria 3800, Australia
A simple low-cost flow-through light-scattering detector was developed for determining the particle mass concentration in colloidal suspensions. Employing a laser pointer as a light source and a photodiode IC as a light sensor, the detector was shown to have good sensitivity, yet was small and battery operated. The detector was demonstrated to be effective for the flow-injection nephelometric determination of sulfate by precipitation as barium sulfate.
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