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12. One method for the quantitative determination of the constituents in a sample analyzed by gas chromatography is the area-normalization method. In this technique, complete elution of all sample constituents is necessary; the area of each peak is then measured and corrected for differences in detector response to the different eluates. This method involves multiplication or division of the area by an empirically determined correction factor. The concentration of the analyte is found from the ratio of its corrected area to the total corrected area for all peaks. For a chromatogram containing three peaks, the relative areas were 16.4, 45.2 and 30.2 in order of increasing retention time. The first peak was for methyl acetate, the second for methyl propionate and the third for methyl butyrate. Calculate the percentage of each compound if the detector response correction requires division of the areas by 0.60, 0.78 and 0.88, respectively.

          12. One method for the quantitative determination of the constituents in a sample analyzed by gas chromatography is the area-normalization method. In this technique, complete elution of all sample constituents is necessary; the area of each peak is then measured and corrected for differences in detector response to the different eluates. This method involves multiplication or division of the area by an empirically determined correction factor. The concentration of the analyte is found from the ratio of its corrected area to the total corrected area for all peaks.

For a chromatogram containing three peaks, the relative areas were 16.4, 45.2 and 30.2 in order of increasing retention time. The first peak was for methyl acetate, the second for methyl propionate and the third for methyl butyrate. Calculate the percentage of each compound if the detector response correction requires division of the areas by 0.60, 0.78 and 0.88, respectively.

12. One method for the quantitative determination of the constituents in a sample analyzed by gas chromatography is the area-normalization method. In this technique, complete elution of all sample constituents is necessary; the area of each peak is then measured and corrected for differences in detector response to the different eluates. This method involves multiplication or division of the area by an empirically determined correction factor. The concentration of the analyte is found from the ratio of its corrected area to the total corrected area for all peaks.

For a chromatogram containing three peaks, the relative areas were 16.4, 45.2 and 30.2 in order of increasing retention time. The first peak was for methyl acetate, the second for methyl propionate and the third for methyl butyrate. Calculate the percentage of each compound if the detector response correction requires division of the areas by 0.60, 0.78 and 0.88, respectively.

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