FT IR Spectroscopy Which of the following is the basis of first dimension of separation for two-dimensional electrophoresis? Isoelectric point Folding Solubility Molecular mass Isoelectric point Folding Solubility Molecular mass 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 Spin - spin - spin relaxation Spin - lattice relaxation None of these Spin - spin relaxation Spin - spin - spin relaxation Spin - lattice relaxation None of these 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 Fourier transformation Measurement of peak areas By use of a Michelson interferometer None of the above Fourier transformation Measurement of peak areas ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy When radiation energy is absorbed by a spin 1/2 nucleus in a magnetic field, what happens? None of these The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field The processional frequency of the nucleus increases The nucleus spins faster None of these The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field The processional frequency of the nucleus increases The nucleus spins faster ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy In scanning electron microscopy None of these 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 a specimen is fixed and then coated with thin layer of a heavy metal None of these 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 a specimen is fixed and then coated with thin layer of a heavy metal ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy An FT-IR instrument record a signal in the time domain both (a) and (b) none of these frequency domain time domain both (a) and (b) none of these frequency domain ANSWER DOWNLOAD EXAMIANS APP
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