Quinine in a 1.553-g antimalarial tablet was dissolved in sufficient 0.10 M HCl to give 250 mL of solution. A 10.00-mL aliquot was then diluted to 50.00 mL with the acid. The fluorescence intensity for the diluted sample at 347.5 nm provided a reading of 196 on an arbitrary scale. A standard 100-ppm quinine solution registered 125 when measured under conditions identical to those for the diluted sample. Calculate the mass in milligrams of quinine in the tablet.
Quinine in a 1.553-g antimalarial tablet was dissolved in sufficient 0.10 M HCl to give 250 mL of solution. A 10.00-mL aliquot was then diluted to 50.00 mL with the acid. The fluorescence intensity for the diluted sample at 347.5 nm provided a reading of 196 on an arbitrary scale. A standard 100-ppm quinine solution registered 125 when measured under conditions identical to those for the diluted sample. Calculate the mass in milligrams of quinine in the tablet.
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter12: Atomic X-ray Spectrometry
Section: Chapter Questions
Problem 12.12QAP
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Quinine in a 1.553-g antimalarial tablet was dissolved in sufficient 0.10 M HCl to give 250 mL of solution.
A 10.00-mL aliquot was then diluted to 50.00 mL with the acid. The fluorescence intensity for the diluted
sample at 347.5 nm provided a reading of 196 on an arbitrary scale. A standard 100-ppm quinine solution
registered 125 when measured under conditions identical to those for the diluted sample. Calculate the mass
in milligrams of quinine in the tablet.
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