Biomedical Instrumentation Systems
1st Edition
ISBN: 9781133478294
Author: Chatterjee
Publisher: Cengage
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The following are the reasons why instrumental analysis methods are used, except for:
a. Narrow concentration ranges may be detected.
b. Extreme low sensitivity, with molecule and noise signal detection.
c. Separate equipment or facilities for control, data handling, and optimization procedures.
d. All of the above
A beam of electrons with a speed of 600 m/s passes through double slit with the slits spaced 2 μm apart. If the detector is 2 meters away from the double slit, how far off the center will the m = 1 signal appear?
Below is given the FT-IR (Fourier Transform Infra Red) data of a 1:1 (by weight) mixture of ethylene carbonate (EC) and dimethyl carbonate (DMC). Absorbance Pis given as a function of wavenumber, m. Regress the above data to a second order polynomial P = a, + a, m+ az m? Find the absorbance at m = 1000 cm-1 Wavenumber, m Absorbance, P (arbitrary unit) ( cm-1) 804.184 0.1591 827.326 0.0439 846.611 0.0050 869.753 0.0073 889.038 0.0448 892.895 0.0649 900.609 0.1204
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- I could not switch from cm-1 to eVarrow_forwardThe transmittance of a solution in 1-cm cuvette is 60.0%. Calculate the transmittance of the same solution in 2-cm cuvette.arrow_forwardWhat is the name of the standard that defines zero on the chemical shift axis? (The standard must be a molecule with protons in only one type of environment.) -Tetramethylsilane -Propanoic acid -Ethanol -Butanearrow_forward
- Convert the following Transmittance to absorbance: T=0.305arrow_forwardWhat is the sensitivity at a concentration of 0.050M of a method that showed the calibration curve described by the following function: R=2.05C^3 +1.02C^2 -0.045arrow_forwardHow do I go from frequency (eV) to wavenumber (cm-1)?arrow_forward
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