A patient requires a dose of 99m-Technetium of 10 MBecquerel contained within 2 mL of injection. The administration is scheduled for 3 pm. The radiopharmacist needs to elute the 99m-Technetium from the generator at 9 am that morning, to allow time for the 99m-Technetium to bind to the carrier in the kit used. The volume of eluate required for the kit is 5 mL. A 10% excess of the eluate is always produced. How much 99m-Technetium is required to be eluted at 9 am? Express your answer as MBequerel and MBecquerel /mL

A patient requires a dose of 99m-Technetium of 10 MBecquerel contained within 2 mL of injection. The administration is scheduled for 3 pm. The radiopharmacist needs to elute the 99m-Technetium from the generator at 9 am that morning, to allow time for the 99m-Technetium to bind to the carrier in the kit used. The volume of eluate required for the kit is 5 mL. A 10% excess of the eluate is always produced. How much 99m-Technetium is required to be eluted at 9 am? Express your answer as MBequerel and MBecquerel /mL

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

Chapter32: Radiochemical Methods

Section: Chapter Questions

Problem 32.18QAP: The streptomycin in 500 g of a broth was determined by addition of 1.25 mg of the pure antibiotic...

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Bb Tangipahoa P A Classes O Thomas Willia x E THOMAS WILL O OnCourse Con x E The Spread of x A Assessment: C x G disseminate ir x b oncourseconnect.com/assessment/1651875/41774aa4-b498-clc9-30b9-e734c5204a10 O TPSS Bookmarks CHEMISTRY BENCHMARK TEST 01 CHEMISTRY I 12-3 (THOMAS WILLIAMS, ID: 12390719) 2 of 35 Each equation shows a radioactive isotope giving off some form of radiation, labeled X. Which equation suggests that an alpha particle is being emitted? yC – 4N + }X SU – Th + ;X Be + He ?C + ;x O Co + on - 9Co + X A 8 10 Ne 2 4 5 6 7 Save/Exit 1
A research group discovers a neW version oI happyasee, which they nappyase", that catalyzes the chemical reaction HAPPY = SAD The researchers begin to characterize the enzyme. In the first experiment, with [E] at 4 nM, they find that the Vmax is 1.6 µM s-1. Based on this experiment, what is the kcat for happyase*? kcat 400 S In another experiment, with [E,] at 1 nM and [HAPPY] at 30 µM, the researchers find that Vo is equal to 300 nM s-1. What i the measured Km of happyase* for its substrate HAPPY? Km 10 x10–6 Incorrect Further research shows that the purified happyase* used in the first two experiments was actually contaminated with a reversible inhibitor called ANGER. When ANGER is carefully removed from the happyase* preparation, and the two experiments repeated, the measured Vmax increases to 4.8 µM s-, and the measured Km is now 15 µM. S For the inhibitor ANGER, calculate the values of a' and a. a' 2 Incorrect 2
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