BioNMR2008midterm

BioNMR2008midterm - An s;wef\g Name BCMB/CHEM 8190 B...

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-- An s;wef\g. Name: ------- BCMB/CHEM 8190, BIOMOLECULAR NMR MIDTERM - 02/29/08 Instructions: This is an open book, limited time, exam. You may use notes you have from class and any text book you find useful. You may also use a calculator. You will have 50 minutes to complete the exam. Write your answers and name on the exam; turn it in at the end of the period. 1) (15 pts) Based on the shell model ofthe nucleus what fundamental particle would you expect to detennine the magnetic properties of liB (atomic number 5)? What is the spin of liB? What is the sign of the magnetogyric ratio? I2 ro 'b/1 7£, . J2lJ<; I h 'u e- ~ 2) (20 pts) We are collecting a ID I H spectrum ofa mixture ofcompounds. One has a single proton giving a resonance with a T I of approximately 2s and one has a single proton giving a single resonance with a T 1 ofapproximately Is. Concentrations are such that we will need to signal average to get adequate SIN. We are most interested in getting accurate relative concentrations. Ifwe use a 90° pulse for the first pulse,
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This note was uploaded on 11/07/2011 for the course CHEM 8853R taught by Professor Gelbaum during the Fall '11 term at Georgia Tech.

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BioNMR2008midterm - An s;wef\g Name BCMB/CHEM 8190 B...

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