FORENSIC LABORATORY REPORT

FORENSIC LABORATORY REPORT - FORENSICLABORATORY...

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FORENSIC LABORATORY 
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FORENSIC LABORATORY ABSTRACT  For this laboratory session, four different forensic cases were analyzed. The case that my  laboratory partner and I focused on was case one. In this case, a maintenance worker for a local  city hospital collapsed in the employee lunchroom while eating. We determined that a titration for  caustic substances and a cyanide test should be completed on the iced tea. From the titration for  caustic substances, we determined that the pH was 12.55. From the titration, we determined that  an average of 3.75 mL of HCl is required to bring the iced tea to a pH of 7. From the cyanide test,  we determined that there was no cyanide present. The main purpose of this laboratory session  was to learn how to perform the steps of the analytical chemists job in a real life situation.  INTRODUCTION This laboratory session was a mimic of a real life forensic situation in an analysis  laboratory. This laboratory session allowed us to utilize all the steps of the analytical chemists job.  The analytical chemists job consists of seven steps: formulating the question, selecting analytical  procedures, sampling, sample preparation, analysis, reporting and interpretation, and drawing  conclusions.   Formulating   the   question   involves   translating   general   questions   into   specific  questions to be answered through chemical measurements. Selecting analytical procedures  consists of determining the procedure that will be used to make the required measurements.  Sampling is finding material to analyze. Sample preparation is converting the selected samples  into a form that will allow it to be analyzed chemically. Analysis is measuring the concentration of  analyte a few times (determinations), to ensure accuracy. Reporting and interpretation is writing a  complete report of your results. Drawing conclusions consists of an analyst taking responsibility of  ensuring that the conclusions drawn from their data are consistent with the data, since someone 
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This note was uploaded on 09/27/2010 for the course CHEM 393 taught by Professor Anderson during the Fall '04 term at Ramapo.

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FORENSIC LABORATORY REPORT - FORENSICLABORATORY...

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