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A QUANTITATIVE ANALYSIS OF COMMON METALS IN LOCAL WATER SOURCES.

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Presentation on theme: "A QUANTITATIVE ANALYSIS OF COMMON METALS IN LOCAL WATER SOURCES."— Presentation transcript:

1 A QUANTITATIVE ANALYSIS OF COMMON METALS IN LOCAL WATER SOURCES

2 INTRODUCTION  ANALYZE POTABLE WATER FOR COMMON METALS  TEXAS COMMISION ON ENVIRONMENTAL QUALITY  MAXIMUM CONTAMINANT LEVEL 1 SET BY STATE OF TEXAS

3 SPECIFIC AIM  QUALITATIVE AND QUANTITATIVE ANALYSIS OF COMMON METALS  COST EFFECTIVENESS  VARIOUS SOUCES OF WATER (ARLINGTON, HURST, AND SOUTHLAKE)

4 COMMONLY FOUND METALS  ALUMINUM nm λ, Aluminum Cathode Lamp  IRON nm λ, Iron Cathode Lamp  COPPER nm λ, Copper Cathode

5 INSTRUMENTATION 3  FLAME ATOMIC ABSORPTION SPECTROMETER  THERMO SCIENTIFIC –SOLAR M SERIES AA SPECTROMETER SAMPLE IS ASPIRATED INTO FLAME & ATOMIZED LIGHT BEAM, DIRECTED INTO MONOCHROMATOR & ONTO A DECTECTOR DETECTOR MEASURES AMOUNT OF LIGHT ABSORBED BY THE ATOMIZED ELEMENT

6 MATERIALS  TWO SAMPLES, RANDOMLY SELECTED CITIES OF ARLINGTON, HURST, & SOUTHLAKE  EACH TESTED IN TRIPLICATE  MEAN & STANDARD DEVIATION REPORTED PER METAL & PER SAMPLE

7 METHOD  PREPARATION OF STANDARDS  SLIT WIDTH  ABSORBANCE MEASUREMENTS  PRIMARY AND SECONDARY WAVELENGTH SELECTIONS

8 REFERENCES 1. International Bottled Water Association, U.S. and International Bottled Water Developments and Statistics for National Environmental Methods Index - General Search: water sample analysis for inorganic constituents. https://www.nemi.govhttps://www.nemi.gov 3. The University of Texas at Arlington, Department of Chemistry and Biochemistry, CHEM 4461/5461 Laboratory Manual and Course Guide, Fall Semester, 2010


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