concentration You wish to measure the concentration of methyl benzoate in a plan
ID: 893308 • Letter: C
Question
concentration You wish to measure the concentration of methyl benzoate in a plant stream by gas chromatography. You prepare a sample of butyl benzoate to use as an internal standard. A preliminary run, shown at the right involved a solution containing 1.49 mg/mL of methyl benzoate (peak A) and 1.64 mg/mL of butyl benzoate (peak B) The area of peak A was determined to be 367 and of peak B to be 444 (measured in arbitrary units by the computer). To measure the sample. 1.00 ml of a standard sample of butyl benzoate containing 2.39 mg/mL was mixed with 1.00 mL of the plant stream material, and analysis of the mixture gave a peak area of 483 for peak A and 417 for peak B What is the concentration of the methyl benzoate in the plant stream?Explanation / Answer
concentration You wish to measure the concentration of methyl benzoate in a plan
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