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Caffeine Concentration Lab Report

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Caffeine Concentration Lab Report
By using GC-MS, the mean caffeine content + standard deviation, RSD and 95% confidence level for coffee sample A was determined to be 248.88 + 64.36 ppm, 25.86% and 248.88 + 159.88 ppm, respectively. The mean [12Caffeine] + standard deviation, RSD, confidence interval and mass of caffeine for sample B was determined to be 483.52 + 103.95 ppm, 21.50, 483.52 + 258.24 ppm. According to literature values, the range of caffeine concentration is 250-360 ppm depending on the brand and preparation of each coffee sample. The experimental determined caffeine concentration captured the actual caffeine concentration range. The extraction efficiency for this experiment was 98.83%, which agreed with the literature value range of 93.75-100.75% extraction
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