Comparison of Ion Chromatography with Ion Selective Electrodes for the Determination of Inorganic Anions in Drinking Water Samples

Inorganic Ion Detection by ISE and IC

Authors

  • Muhammad Hakim Central Analytical Facility Division, PINSTECH, P. O. Nilore, Islamabad, Pakistan
  • Farhat Waqar Central Analytical Facility Division, PINSTECH, P. O. Nilore, Islamabad, Pakistan
  • Saida Jan Central Analytical Facility Division, PINSTECH, P. O. Nilore, Islamabad, Pakistan
  • Bashir Mohammad Central Analytical Facility Division, PINSTECH, P. O. Nilore, Islamabad, Pakistan
  • Wasim Yawar Central Analytical Facility Division, PINSTECH, P. O. Nilore, Islamabad, Pakistan
  • Shah Alam Khan PCSIR Laboratories Complex, Jamrud Road, Peshawar - 25120, Pakistan

Keywords:

drinking water, nitrate, chloride, fluoride, ion selective electrode, ion chromatography

Abstract

Fluoride, chloride and nitrate anions were determined in drinking water samples using techniques of ion selective electrodes (ISE) and non-suppressed/suppressed ion chromatography (IC). Detection limit, percentage recovery and run time were evaluated for the two methods. Detection limits for ISE [0.02, 0.20 and 1.7 ppm (?g/mL) for fluoride, chloride and nitrate, respectively], were better than those for non suppressed IC (2.0, 1.0 and 2.0 ppm for fluoride, chloride and nitrate, respectively). Suppressed IC was used to measure fluoride. Statistical analysis of the data revealed no evidence of systematic difference between ISE and non suppressed IC for chloride and nitrate. Fluoride concentrations in all water samples were lower, while chloride and nitrate concentrations in some samples were higher than the maximum contaminant levels established by the United States Environmental Protection Agency.

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Published

2010-02-22

How to Cite

Hakim, M., Waqar, F., Jan, S., Mohammad, B., Yawar, W., & Khan, S. A. (2010). Comparison of Ion Chromatography with Ion Selective Electrodes for the Determination of Inorganic Anions in Drinking Water Samples: Inorganic Ion Detection by ISE and IC. Biological Sciences - PJSIR, 53(1), 6–13. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/412

Issue

Vol. 53 No. 1 (2010): Pakistan Journal of Scientific and Industrial Research

Section

Articles