Transcription of Ion chromatography analysis methods and issues
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Ion chromatography analysis methods and issues
Ion chromatography analysis methods and issues Jim Krol Sr Applications Chemist for Ion analysis Waters Corporation Feb/Mar 2000. Slide #. You Have a Choice for Ion analysis Ion analysis Options Ion Capillary Ion chromatography analysis Single Column Chemical IC Suppression IC. Slide #. Ion chromatography Hardware Configuration Options Data System chromatography Manager Anion Conductivity Isocratic Manual Exchange Pump Injector Detector Column Ion Suppressor Conductivity Gradient Autosampler Exchange CIA. Module Detector Pump Column Ion Exchange Photodiode Gradient Autosampler Suppressor Conductivity Column Array Pump Module Detector Detector Slide #. What Are Ions? Any chemical species that carries a electrical charge -Soluble in water -Exhibit conductivity in solution Example: NaCl + H20 Na+ + Cl- + H2O.
Depending on the sample matrix, other ions influence solubility. K sp = [A-][C+] pK sp = -log K sp [AC] Example: Analysis of Cl in a sample matrix containing Ag, or Analysis of SO 4 in a sample with high Ca. K sp for AgCl is 9.75 implying that Cl is not in solution K sp for CaSO 4 is 5.04 implying that only a portion of the SO
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