A standard sample contains 15.0 mM of analyte and 25.0 mM of internal standard. The analysis of the standard sample gives peak areas for the analyte and internal standard of 1.782 and 3.539, respectively, in a chromatography analysis. Then sufficient internal standard is added to a sample to make its concentration 10.0 mM. The analysis of this new sample yields peak areas for the analyte and internal standard of 0.894 and 2.981, respectively. Name the calibration method and report the analyte's concentration in the new sample.

A standard sample contains 15.0 mM of analyte and 25.0 mM of internal standard. The analysis of the standard sample gives peak areas for the analyte and internal standard of 1.782 and 3.539, respectively, in a chromatography analysis. Then sufficient internal standard is added to a sample to make its concentration 10.0 mM. The analysis of this new sample yields peak areas for the analyte and internal standard of 0.894 and 2.981, respectively. Name the calibration method and report the analyte's concentration in the new sample.

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter4: Least-squares And Calibration Methods

Section: Chapter Questions

Problem 3P

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