(a)
Interpretation:
Length of a mirror drive is to be determined in Michelson interferometer in such way that the produced resolution will be enough for the separation of IR peaks at 600.7 cm-1 and 600.4 cm-1.
Concept introduction:
Resolution is calculated by the difference of the wave number of both IR peaks.
For the calculation of the length of the mirror, the following formula will be used:
Here,
(b)
Interpretation:
Length of a mirror drive is to be determined in Michelson interferometer in such a way that the produced resolution will be enough for the separation of IR peaks at 3002.5 cm-1 and 3008.6 cm-1.
Concept introduction:
Resolution is calculated by the difference in wave number of both IR peaks.
For the calculation of the length of the mirror, following formula will be used:
Here,
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Chapter 7 Solutions
Principles of Instrumental Analysis
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- Infrared Spectroscopy (IR) is very useful for determining the functional groups present in an organic molecule. For each of the spectra below, complete the following: • Build the molecule in Spartan and describe the motion of the molecule at each key absorption frequency • Identify key absorption frequencies in the spectrum and identify the type of stretch/bend/wag/etc. (i.e. O-H) • Match the spectra from the provided structures • Identify the main functional groups in the molecule OH A OH H B E F H N NH2arrow_forward3. In molecular absorption spectrophotometry, the relationship between transmittance and concentration is not linear while the absorbance vs concentration is linear. True Falsearrow_forwardAnswer the questions regarding a single Fourier transform infrared spectroscopy (FTIR) experiment. The interferogram was sampled at a retardation interval (8) of 0.0001297 cm. What wavenumber range is possible with a sample retardation interval (8) of 0.0001297 cm? Aỹ = cm- For a spectrum acquired in 8-bit space (256 data points sampled) for ô = -A to d = +A , determine the value of maximum retardation (A) and the resolution (R). A = cm R = cm-1 What is the interferometer mirror velocity if each data point required 267 us (tintt) to obtain? Vint = cm/sarrow_forward
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