You wish to measure the concentration of methyl benzoate in aplant stream by gas chromatography. You prepare a sample of butylbenzoate to use as an internal standard. A preliminary run, shownat the right involved a solution containing 1.31 mg/mL of methylbenzoate (peak A) and 1.44 mg/mL of butyl benzoate (peak B). Thearea of peak A was determined to be 345 and of peak B to be 403(measured in arbitrary units by the computer). To measure thesample, 1.00 mL of a standard sample of butyl benzoate containing2.73 mg/mL was mixed with 1.00 mL of the plant stream material, andanalysis of the mixture gave a peak area of 471 for peak A and 393for peak B. What is the concentration of the methyl benzoate in theplant stream?

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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 1.15 mg/mL of methyl benzoate (peak A) and 1.26 mg/mL of butyl benzoate (peak B). The area of peak A was determined to be 338 and of peak B to be 382 (measured in arbitrary units by the computer). To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.11 mg/mL was mixed with 1.00 mL of the plant stream material, and analysis of the mixture gave a peak area of 437 for peak A and 391 for peak B. What is the concentration of the methyl benzoate in the plant stream?

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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 1.79 mg/mL of methyl benzoate (peak A) and 1.97 mg/mL of butyl benzoate (peak B). The area of peak A was determined to be 319 and of peak B to be 373 (measured in arbitrary units by the computer). To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.37 mg/mL was mixed with 1.00 mL of the plant stream material, and analysis of the mixture gave a peak area of 441 for peak A and 411 for peak B. What is the concentration of the methyl benzoate in the plant stream? Make sure to use the dilution factor for the standard butyl benzoate

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 1.65 mg/mL of methyl benzoate (peak A) and 1.82 mg/mL of butyl benzoate (peak B). The area of peak A was determined to be 325 and of peak B to be 394 (measured in arbitrary units by the computer). To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.19 mg/mL was mixed with 1.00 mL of the plant stream material, and analysis of the mixture gave a peak area of 463 for peak A and 411 for peak B. What is the concentration of the methyl benzoate in the plant stream?