Concept explainers
Interpretation:
The ions which results in the four peaks having larger mass-to-charge ratios than the M+ peak in given should be identified.
Concept introduction:
Mass spectrometry is a powerful analytical technique which is used to elucidate structure of compounds, quantify materials, identify unknown compounds etc. In mass spectrophotometer the molecule is ionized by giving it a positive charge by removing an electron or by adding a proton. The molecule may break into several positively charged fragments according to the ionization method used. Then in a mass analyzer these cationic molecular fragments are separated based on their mass and detected by the detector. Only positively charged molecular fragments are detected by the detector.
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Chapter 20 Solutions
Principles of Instrumental Analysis, 6th Edition
- Show COMPLETE solutions. Round-off FINAL answer to the 4th decimal The absorption coefficient of Sample Z at 340 nm is 600 Mol-1cm-1. What absorbance will be observed when light at 340 nm passes through a 1 cm cuvette containing 0.001M Sample zk A solution put in a 1.5 cm container transmits 55% incident light. Calculate the concentration of the solution, given that ɛ = 6x10-3 Mol-1cm-1. A solution shows a transmittance of 39.72%, when taken in a container measuring 3.5 cm thickness. Calculate its concentration, if the molar absorption coefficient is 3x10-2 Mol-1cm- 1.arrow_forwardIn an ideal mass spectrum of a compound, the following data (intensity) is given: M* = 80% %3D M +1 = 8.8% How many carbons are expected to be present in the parent molecule? 0 7 0 8 O 10arrow_forwardWhat is peak multiplicity and how does multiplicity arise?arrow_forward
- Suppose you are analyzing mercury ions (Hg2+) in drinking water samples with atomic absorption spectroscopy. If the Hg2+ signal varies by a matrix of sample, which of the following should be used as a standard for calibration? Either cations or anions can be used if they are different from Hg2+, 0 H20 Any anions can be used if they are different from Hg2+ Any cations can be used if they are different from Hg?". Hg2+arrow_forwardDetermine the isotopic peak scheme for [ReCl]+ fragment in the mass spectrum? 185Re: %37 ; 187Re: %63; 35Cl: %76; 37Cl: %24arrow_forwardFluorometry is more selective and more sensitive than absorption spectrometry.Tell what is meant by selectivity and sensitivity.arrow_forward
- Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage LearningMacroscale and Microscale Organic ExperimentsChemistryISBN:9781305577190Author:Kenneth L. Williamson, Katherine M. MastersPublisher:Brooks Cole
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