Determination of Ethanol Concentration in Orange Juice by Gas Chromatography
[ISBN 0-9621181-8-4]
$10.50 (US)
(5 Pages of Text + 7 Exhibits)
This analysis determines the concentration of ethanol in an authentic orange juice sample suspected of having been spiked with Vodka (40 gram EtOH/100 cc). A gas chromatography method (AOAC Methods of Analysis Section 27.1.09, Method 935.20) is used for the analysis. A control sample comprised of orange juice purchased from a supermarket indicates a low but measureable concentration of ethanol, less than one percent of the ethanol concentration measured in the client sample.
CONTENTS
Summary of Analytical Results
A. Description of the Method of Gas Chromatography
B. Experimental Protocol and Quality Control
1. Chain of Custody, Storage, Sample Volume
2. Sample Preparation For Gas Chromatography
a. Unknown Client Sample
b. Matrix Spike Sample
c. Laboratory Check Sample
d. Control Sample
3. Ethanol Standards
C. Results
1. Standard Calibration Curve
2. Duplicate Unknowns
3. Matrix Spike
4. Laboratory Check Sample
5. Control Sample
6. Method Blank
$10.50 (US)
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