In fluorescence spectroscopy, the observed fluorescence is linearly related to the concentration of the analyte. A sample containing Zn was dissolved in HCI solution and complexed with 8-hydroxyquinoline (L) to form a rigid Znl 2 complex. The solution was further diluted to 1000 ml in a volumetric flask. The fluorescence intensity for this solution measured at 506 nm is 8,760 Unit. A standard solution with the Znl.2 complex concentration of 0.347 mM shows a fluorescence intensity of 4,291 Unit when measured at 506 nm. How many milligrams of Zn is presented in the sample? (Mw of Zn-65.4 g/mole). Please keep your answer to one decimal place.

In fluorescence spectroscopy, the observed fluorescence is linearly related to the concentration of the analyte. A sample containing Zn was dissolved in HCI solution and complexed with 8-hydroxyquinoline (L) to form a rigid Znl 2 complex. The solution was further diluted to 1000 ml in a volumetric flask. The fluorescence intensity for this solution measured at 506 nm is 8,760 Unit. A standard solution with the Znl.2 complex concentration of 0.347 mM shows a fluorescence intensity of 4,291 Unit when measured at 506 nm. How many milligrams of Zn is presented in the sample? (Mw of Zn-65.4 g/mole). Please keep your answer to one decimal place.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter26: Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 26.32QAP

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