FT IR Spectroscopy In scanning electron microscopy 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 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 ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy In immunofluroscence microscopy, fluroscent compounds are attached to bound antibody specific for the subcellular structure an antibody specific for the subcellular structure none of these an antigen specific for the subcellular structure bound antibody specific for the subcellular structure an antibody specific for the subcellular structure none of these an antigen specific for the subcellular structure ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy What is meant by rotating frame of reference? None of these That the detector rotates around the sample If the laboratory itself is imagined to be rotated at the Larmor frequency, viewing that individual magnetic moment vectors are fixed in space That the sample is spun rapidly in the applied field None of these That the detector rotates around the sample If the laboratory itself is imagined to be rotated at the Larmor frequency, viewing that individual magnetic moment vectors are fixed in space That the sample is spun rapidly in the applied field 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 - spin relaxation None of these Spin - lattice relaxation Spin - spin - spin relaxation Spin - spin relaxation None of these Spin - lattice relaxation Spin - spin - spin relaxation ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy How do you turn a signal recorded in the time domain into a frequency domain signal? By use of a Michelson interferometer None of the above Measurement of peak areas Fourier transformation By use of a Michelson interferometer None of the above Measurement of peak areas Fourier transformation ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy Why is it advantageous to record many FID signals from the same sample and then add them together? To remove inaccuracies caused by fluctuations in the applied magnetic field None of these To increase sensitivity To ensure that all target nuclei in the sample have been excited To remove inaccuracies caused by fluctuations in the applied magnetic field None of these To increase sensitivity To ensure that all target nuclei in the sample have been excited ANSWER DOWNLOAD EXAMIANS APP
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