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 9, Problem 9.4QAP
Interpretation Introduction
Interpretation:
The mechanism of deuterium lamp that helps in providing background correction for atomic absorption spectrum needs to be explained.
Concept introduction:
Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range as compared to the frequencies nearby.
Atomization refers to the separation of substance particles into separate molecules because of high temperature treatment and breaking of these molecules into atoms. Flame atomizer and discrete atomizer are two types of atomizers.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Describe how a deuterium lamp can be used to provide background correction for an
atomic absorption spectrum.
A spectrophotometer has basic several components. Describe the role of each component and the justification for the setup of an instrument used for excitation spectroscopy and an instrument for emission spectroscopy.
Create a fluorometer schematic diagram and in a spectrofluorimetric analysis, why is it required to set both the excitation and emission wavelengths to their maximum values?
Chapter 9 Solutions
Principles of Instrumental Analysis
Ch. 9 - Prob. 9.1QAPCh. 9 - Prob. 9.2QAPCh. 9 - Why is an electrothermal atomizer more sensitive...Ch. 9 - Prob. 9.4QAPCh. 9 - Prob. 9.5QAPCh. 9 - Prob. 9.6QAPCh. 9 - Prob. 9.7QAPCh. 9 - Prob. 9.8QAPCh. 9 - Prob. 9.9QAPCh. 9 - Prob. 9.10QAP
Ch. 9 - Prob. 9.11QAPCh. 9 - Prob. 9.12QAPCh. 9 - Prob. 9.13QAPCh. 9 - Prob. 9.14QAPCh. 9 - Prob. 9.15QAPCh. 9 - Prob. 9.16QAPCh. 9 - Prob. 9.17QAPCh. 9 - In the concentration range of 1 to 100 g/mL P,...Ch. 9 - Prob. 9.19QAPCh. 9 - Prob. 9.20QAPCh. 9 - Prob. 9.21QAPCh. 9 - The chromium in an aqueous sample was determined...Ch. 9 - Prob. 9.23QAP
Knowledge Booster
Similar questions
- In high-temperature sources, sodium atoms emit a doublet with an average wavelength of 1139 nm. The transition responsible is from the 4s to 3p state. Set up a spreadsheet to calculate the ratio of the numberof excited atoms in the 4s state to the number in the ground 3s state over the temperature range from anacetylene-oxygen flame (3000°C) to the hottest part of an inductively coupled plasma source (8750°C).arrow_forwardWhat is a rotating frame of reference?arrow_forwardUse the data in Figure 4.8 to estimate the ratio of radiation intensity at 10,000 Å (infrared) to that at 5000 Å (visible) from a blackbody at 5000 K. How will this ratio change with increasing temperature? Explain how this change occurs.arrow_forward
- Identify and provide an explanation of the operational principles behind an Atomic Absorption Spectrometer.arrow_forwardAtomic absorption spectrophotometry is a method for the quantitative determination of metal ions. a) Describe in detail the AAS instrument and especially the parts that differ from a normal spectrophotometer. b) What light source is used in this technology and how does it work? c) What interferences can occur with this equipment? d) What is the theoretical basis of the AAS method?arrow_forwardplease explain your reasoningarrow_forward
- The Rydberg constant depends on the mass of thenucleus. What is the difference in wavenumbers of the 3p-->1s transition in hydrogen and deuterium?arrow_forwardWhat is the frequency of radiation with a wavelengih öF.60 × 10~* m? In what region of the electromag- netic spectrum is this radiation? In Problem 16, solve for frequency.arrow_forwardWe first set the spectrometer to an appropriate wavelength before we use it to measure intensity of light absorption. Why is it necessary to set the wavelength?arrow_forward
- What is frequency factor?arrow_forwardWhite light passes through a white or clear sample and is collected by a detector. Which absorption spectra could be correct? Select all possible answers. Absorbance O B -400 nm Absorbance -700 nm B -400 nm wavelength A Absorbance wavelength 400 nm 700 nm wavelengtharrow_forwardDescribe the basic design difference between a spectrometer for absorption measurements and one for emission studies?arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
Physical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,
Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
Chemistry for Engineering StudentsChemistryISBN:9781285199023Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage Learning
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Physical Chemistry
Chemistry
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Wadsworth Cengage Learning,
Chemistry for Engineering Students
Chemistry
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Cengage Learning
Chemistry for Engineering Students
Chemistry
ISBN:9781285199023
Author:Lawrence S. Brown, Tom Holme
Publisher:Cengage Learning
Principles of Modern Chemistry
Chemistry
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:Cengage Learning