You are asked to prepare a bolus IV injection of a new, experimental MRI contrast agent. The reconstituted stock solution of the contrast agent has a concentration of 0.60 M. What volume of the stock solution do you need in order to prepare 1.8 mL of 0.20 M contrast agent? O 1.5 mL 15 mL 1.7 mL O 0.60 mL

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.