The lithium concentration in serum taken from a patient being treated with lithium for manic-depressive illness was analyzed using flame emission spectroscopy. A sample of the serum gave a reading of 284 units for the intensity of the 671 nm red emission line. Then, 1.00 mL of a 11.1 mM lithium standard was added to 9.00 mL of serum. This spiked serum gave an intensity reading of 645 units at the 671 nm emission line. What is the original concentration of Lit in the serum? [Lit] = mM

The lithium concentration in serum taken from a patient being treated with lithium for manic-depressive illness was analyzed using flame emission spectroscopy. A sample of the serum gave a reading of 284 units for the intensity of the 671 nm red emission line. Then, 1.00 mL of a 11.1 mM lithium standard was added to 9.00 mL of serum. This spiked serum gave an intensity reading of 645 units at the 671 nm emission line. What is the original concentration of Lit in the serum? [Lit] = mM

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

5th Edition

ISBN:9781305084766

Author:Saeed Moaveni

Publisher:Saeed Moaveni

Chapter13: Energy And Power

Section: Chapter Questions

Problem 22P

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The lithium concentration in serum taken from a patient being treated with lithium for manic-depressive illness was analyzed
using flame emission spectroscopy. A sample of the serum gave a reading of 284 units for the intensity of the 671 nm red
emission line. Then, 1.00 mL of a 11.1 mM lithium standard was added to 9.00 mL of serum. This spiked serum gave an
intensity reading of 645 units at the 671 nm emission line. What is the original concentration of Lit in the serum?
[Lit) =
mM

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