FT IR Spectroscopy Why is it advantageous to record many FID signals from the same sample and then add them together? None of these To remove inaccuracies caused by fluctuations in the applied magnetic field To increase sensitivity To ensure that all target nuclei in the sample have been excited None of these To remove inaccuracies caused by fluctuations in the applied magnetic field To increase sensitivity To ensure that all target nuclei in the sample have been excited ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy In scanning electron microscopy None of these a specimen is fixed and then coated with thin layer of a heavy metal a specimen is not fixed and then coated with thin layer of a heavy metal a specimen is fixed and then coated with transition metal None of these a specimen is fixed and then coated with thin layer of a heavy metal a specimen is not fixed and then coated with thin layer of a heavy metal a specimen is fixed and then coated with transition metal ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy In FT-NMR, how are nuclei excited? By an intense pulse of radiation which contains a wide range of frequencies None of these By radio-frequency radiation whose frequency is swept across a predetermined range By an intense pressure By an intense pulse of radiation which contains a wide range of frequencies None of these By radio-frequency radiation whose frequency is swept across a predetermined range By an intense pressure ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy What is the name given to the relaxation process due to an interaction between an excited nucleus and the magnetic fields caused by nuclei in molecules moving around in the sample? Spin - lattice relaxation None of these Spin - spin - spin relaxation Spin - spin relaxation Spin - lattice relaxation None of these Spin - spin - spin relaxation Spin - spin relaxation ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy In immunofluroscence microscopy, fluroscent compounds are attached to an antigen specific for the subcellular structure an antibody specific for the subcellular structure none of these bound antibody specific for the subcellular structure an antigen specific for the subcellular structure an antibody specific for the subcellular structure none of these bound antibody specific for the subcellular structure ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy An FT-IR instrument record a signal in the both (a) and (b) time domain none of these frequency domain both (a) and (b) time domain none of these frequency domain ANSWER DOWNLOAD EXAMIANS APP
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