Lithium in a sample is determined by flame emission spectrometry, using a standard additions calibration. 100pL of sample diluted to ImL gives an emission signal of 6.7 units. A similar solution to which 10 uL of a 0.010 M solution of LiNO, added gives a signal of 14.6 units. Assuming linearity between the emission signal and the lithium concentration, what is the concentration of lithium in the sample in ppm?
Lithium in a sample is determined by flame emission spectrometry, using a standard additions calibration. 100pL of sample diluted to ImL gives an emission signal of 6.7 units. A similar solution to which 10 uL of a 0.010 M solution of LiNO, added gives a signal of 14.6 units. Assuming linearity between the emission signal and the lithium concentration, what is the concentration of lithium in the sample in ppm?
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
Chapter1: Introduction
Section: Chapter Questions
Problem 1.9QAP
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