3 results for “interfering ions”

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Research ArticleOpen accessIn the keywordsThe Effect of Fluoride and Other Ions on Algae and Fish of Coastal Water of Mediterranean Sea, EgyptM. S. Masoud, W. M. El-Sarraf, A. A. Harfoush, G. F. El-SaidSea grass, marine algae and fish samples were collected from the Egyptian coast of Mediterranean Sea during September 2000 and March 2001. The contents of fluoride and some interfering ions (calcium, magnesium, sulphate, phosphorus and some heavy metals) ions and their concentration factors were determined in the dried samples. Fluoride contents in macrophytes, algae, muscle of fish samples were ranged … …American Journal of Environmental Sciences, Vol. 2, Issue 2 · 30 Jun 2006 · 7,265 accessesView PDF Cite

Research ArticleOpen accessIn the abstractPlastic Membrane Electrodes of Coated Wire Type for Micro Determination of Quininium Cation in Pharmaceutical TabletsLaila Abdullah Al Shatti, Hayat Mohammed Marafie, Adel Fahmi ShoukryProblem statement: Silver and copper all-solid state wire sensor electrodes of quininium cation with different ion exchangers have been prepared and used in pharmaceutical analysis. A comparative study with a reference method is applied in order to investigate the validity of the proposed method for potentiometric analysis of pharmaceutical compounds containing quinine. Approach: A Nernstian equation was proved for all … …American Journal of Applied Sciences, Vol. 8, Issue 2 · 28 Feb 2011 · 7,690 accessesView PDF Cite

Research ArticleOpen accessIn the abstractKnowledge Representation of Ion-Sensitive Field-Effect Transistor Voltage Response for Potassium Ion Concentration Detection in Mixed Potassium/Ammonium Ion SolutionsWan Fazlida Hanim Abdullah, Mohd Alaudin Mohd Ali, Md Shabiul Islam, Masuri OthmanProblem statement: The Ion-Sensitive Field-Effect Transistor (ISFET) is a metal-oxide field-effect transistor-based sensor that reacts to ionic activity at the electrolye/membrane/gate interface. The ionic sensor faces issue of selectivity from interfering ions that contribute to the sensor electrical response in mixed solutions. Approach: We present the training data collection of ISFET voltage response for the purpose of post-processing stage neural … …American Journal of Applied Sciences, Vol. 7, Issue 1 · 31 Jan 2010 · 7,816 accessesView PDF Cite