Concept explainers
(a)
Interpretation:
The variables that lead to band broadening are to be stated.
Concept introduction:
The band broadening is defined as a phenomenon. It leads the poor chromatographic performance and resolution which results in the reduction of the separation efficiency. This problem is responsible for both the quality and accuracy of the separation.
(b)
Interpretation:
The variable that leads to band separation in gas-liquid chromatography is to be stated.
Concept introduction:
The band broadening is defined as a phenomenon. It leads the poor chromatographic performance and resolution which results in the reduction of the separation efficiency. This problem is responsible for both the quality and accuracy of the separation.
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Chapter 27 Solutions
Principles of Instrumental Analysis
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- Write the differences between adsorption and absorption?arrow_forwardWhat are the basic differences between absorption & adsorption, and sorption?arrow_forwardIn reversed phase HPLC, how will the retention time of a component of a mixture vary with the polarity of its molecules? Explain your answerarrow_forward
- For each of the following statements, answer TRUE or FALSE and explain your answer briefly. It is preferred to apply potassium dichromate solution over neutral density filter to check the photometric accuracy of UV-visible spectrophotometer.arrow_forwardIt is usually recommended to clean the glass surfaces of a refractometer with ethanol or isopropyl alcohol rather than acetone or water. Why?arrow_forwardDefine the following terms used in HPLC: (d) sampling loops (e) bonded-phase packing (f) gel filtrationarrow_forward
- Do not give handwriting solution Using 0.901 g/cm3 for density of tri - isopropylsilanol (i-C3H7)3SiOH and assuming spherical shape of the molecule, determine its molecular cross section and the maximal grafting density for these molecules supported on a flat silica surface.arrow_forwarddifference between adsorption and absorption.arrow_forwardWhy HPLC is an important technique in the fields of chemistry . explain with different reasons?arrow_forward
- Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage LearningEBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENT