User:Karlena L. Brown/Notebook/PVOH Research/2012/10/05: Difference between revisions
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==Notes== | ==Notes== | ||
* New original standards prepared were increasingly high in concentration; therefore, CuSO<sub>4</sub> standards, 5-20ppm, must remade | * Dilution standards listed above for CuSO<sub>4</sub> are incorrect and inaccurate due to miscalculations of stock solution concentrations | ||
'''CuSO<sub>4</sub> stock solution = 13.2 ppm''' | |||
*New original standards prepared were increasingly high in concentration; therefore, CuSO<sub>4</sub> standards, 5-20ppm, must remade | |||
* All 2:1 α-Fe<sub>3</sub>O<sub>4</sub> samples remade and tested because the solutions were diluted with CuSO<sub>4</sub> instead of distilled H<sub>2</sub>O | * All 2:1 α-Fe<sub>3</sub>O<sub>4</sub> samples remade and tested because the solutions were diluted with CuSO<sub>4</sub> instead of distilled H<sub>2</sub>O | ||
* Due to various errors regarding concentrations the calibration curve created was inaccurate | * Due to various errors regarding concentrations the calibration curve created was inaccurate |
Revision as of 19:54, 22 October 2012
PVOH Research | <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page <html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>Previous entry<html> </html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html> | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
OBJECTIVES
Preparations For CuSO4 Clay Exchanged Solutions & Vacuum Filtration ProceduresSetup of a vacuum filtration system: * Clean 250mL Erlenmeyer Filter Flask * Large Buchner Funnel * Whatman #42 Filter Paper * Long Secure Rubber Hose
REPEAT THE PROCEDURE ABOVE FOR THE 100% CEC NaMT & THE 50% CEC NaMT CLAYS AS WELL Atomic Absorption CuSO4 Clay Exchanged Dilutions & CalculationsCuSO4 Dilution Standards 12mL 7.4 ppm CuSO4 requires: (636ppm CuSO4)V1 = (7.4ppm CuSO4)(12mL) V1 = 0.140mL 12mL 10 ppm CuSO4 requires: (636ppm CuSO4)V1 = (10ppm CuSO4)(12mL) V1 = 0.189mL Atomic Absorption ResultsAtomic Absorption Data and Calibration Curve Data from AA wizard:
Notes
CuSO4 stock solution = 13.2 ppm
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