Date: April 14, 2011
Creator: Patnaik, Ritish; Naik, Sahil N.; Hart, Aaron S.; Kummari, Venkata C.; Phinney, Lucas; Dhoubhadel, Mangal et al
Description: This poster discusses a research study of the accuracy and precision among XRF, ICP-MS, and PIXE on trace element analyses of small water samples. The study focused on trace element count differences in local tap water samples from seven Indian localities (Bangalore, Cochin, Bhubaneswar, Cuttack, Puri, Hospeta, and Pipili), looking for a correlation between the area's population and the water quality. Water samples taken from rural areas were expected to show the highest counts of trace elements due to the lack of water treatment found in these areas. Ten-milliliter water samples were filtered for PIXE (Particle-Induced X-Ray Emission) and XRF (X-Ray Fluorescence) analysis. The counts/second of the samples were compared to one another as well as ICP-MS (Inductively-Coupled Plasma Mass Spectrometer) test runs. The results proved the hypothesis with one exception: Bhubaneswar, the second highest populated area, had the highest counts of trace elements, raising red flags for public water quality. PIXE was determined to be a viable option for preliminary trace element water analysis with ICP-MS as the industry-standard and XRF as imprecise.
Contributing Partner: UNT Honors College