Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 19, Problem 19.23QAP
Interpretation Introduction
Interpretation:
The frequency lock system in an NMR spectrometer should be stated. The two types of lock systems should be determined.
Concept introduction:
Nuclear magnetic resonance is a technique that is used to predict the structural formula of the compound. NMR spectroscopy involves the examination of the nucleus under the external magnetic field.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
How does a two-dimensional NMR spectrum differ from a one-dimensional spectrum?
In a 2-D NMR spectrum, what is the diagonal, and what leads to the cross-signals (cross-peaks)?
Name the two gases used in NMR spectrometer. What are their functions in the equipment?
Establish the difference between the multiplicity of a signal and the integral (integration) of the signal in spectroscopy of 1H-NMR.
Chapter 19 Solutions
Principles of Instrumental Analysis
Ch. 19 - Prob. 19.1QAPCh. 19 - Prob. 19.2QAPCh. 19 - Prob. 19.3QAPCh. 19 - Prob. 19.4QAPCh. 19 - Prob. 19.5QAPCh. 19 - A nucleus has a spin quantum number of 7/2. How...Ch. 19 - Prob. 19.7QAPCh. 19 - Prob. 19.8QAPCh. 19 - Prob. 19.9QAPCh. 19 - Why is 133C-133C spin-spin splitting not observed...
Ch. 19 - Prob. 19.11QAPCh. 19 - Prob. 19.12QAPCh. 19 - Prob. 19.13QAPCh. 19 - What is a rotating frame of reference?Ch. 19 - How will E for an isolated 13C nucleus compare...Ch. 19 - Prob. 19.16QAPCh. 19 - Prob. 19.17QAPCh. 19 - Prob. 19.18QAPCh. 19 - Prob. 19.19QAPCh. 19 - Prob. 19.20QAPCh. 19 - Prob. 19.21QAPCh. 19 - Prob. 19.22QAPCh. 19 - Prob. 19.23QAPCh. 19 - Prob. 19.24QAPCh. 19 - Prob. 19.25QAPCh. 19 - Prob. 19.26QAPCh. 19 - Prob. 19.27QAPCh. 19 - Prob. 19.28QAPCh. 19 - Prob. 19.29QAPCh. 19 - Prob. 19.30QAPCh. 19 - The proton NMR spectrum in Figure 19.39 is for an...Ch. 19 - The proton NMR spectrum in Figure 19-40 is for a...Ch. 19 - Prob. 19.33QAPCh. 19 - Prob. 19.34QAPCh. 19 - Prob. 19.35QAPCh. 19 - From the proton NMR spectrum in Figure 19-44,...Ch. 19 - From the proton spectrum given in Figure 19-45,...Ch. 19 - Prob. 19.38QAPCh. 19 - Prob. 19.39QAPCh. 19 - Prob. 19.40QAPCh. 19 - Prob. 19.41QAPCh. 19 - Prob. 19.42QAP
Knowledge Booster
Similar questions
- True or False 1. Photodiode arrays are devices within the instrument that help amplify the signal of a sample. 2. Atomic spectroscopy requires the atomization of a sample, which involves nebulization and eventually volatilization to form an elemental vapor. 3. Organic compounds are normally analyzed in atomic spectroscopy despite their small electronic transition range.arrow_forwardWhat are T1 and T2 relaxation times in NMR spectrometry? How are pulse sequences used in NMR?arrow_forwardWhy Use Benchtop NMR Spectrometers?arrow_forward
- If two signals differ by 1.5 ppm in a 300 MHz spectrometer, by how much do they differ in a 500 MHz spectrometer?arrow_forwardA student calibrated the mini-spectrophotometer with a blank solution, and then went to check their solution. They got a fingerprint on the cuvette while filling it. Because of this, the expected reading for the absorbance would be too high which would cause the calculated value of K, to be too higharrow_forwardAtomic fluorescence spectrometry is an attractive alternative to atomic absorption spectrometry for certain elements. For which elements is it best suited? Why?arrow_forward
- Describe the two different methods of experimentation of Nuclear Magnetic Resonance (NMR) spectroscopyarrow_forwardExplain how the signal is modulated in fluoresence spectroscopy to increase the signal to noise ratio of the measurement.arrow_forwardWhich of the following light sources can be used to examine a fluorescent dye that absorbs at 440 nm in molecular spectroscopy? I. xenon arc lamp II. deuterium lamp III. tungsten lamp IV. hollow cathode tubearrow_forward
- 5. Show that 'H nuclei with large chemical shifts relative to TMS have small shielding constants.arrow_forwardExplain why an internal standard is required during sample preparation in quantitative analysis when using atomic spectroscopy?arrow_forwardExplain the principal work of atomic absorption spectroscopy? And how is it used for the determination of unknown heavy metals and other metals concentrations?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning
Physical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Organic Chemistry: A Guided Inquiry
Chemistry
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Cengage Learning
Physical Chemistry
Chemistry
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Wadsworth Cengage Learning,
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning