Read e-book online Analytical Chemistry for Technicians, Fourth Edition PDF

By John Kenkel

ISBN-10: 1439881065

ISBN-13: 9781439881064

Creation to Analytical ScienceSampling and pattern PreparationGravimetric AnalysisIntroduction to Titrimetric AnalysisApplications of Titrimetric AnalysisIntroduction to Instrumental AnalysisIntroduction to Spectrochemical MethodsUV-Vis and IR Molecular SpectrometryAtomic SpectroscopyIntroduction to ChromatographyGas ChromatographyHigh-Performance Liquid Chromatography and ElectrophoresisMass Read more...

summary: creation to Analytical ScienceSampling and pattern PreparationGravimetric AnalysisIntroduction to Titrimetric AnalysisApplications of Titrimetric AnalysisIntroduction to Instrumental AnalysisIntroduction to Spectrochemical MethodsUV-Vis and IR Molecular SpectrometryAtomic SpectroscopyIntroduction to ChromatographyGas ChromatographyHigh-Performance Liquid Chromatography and ElectrophoresisMass SpectrometryElectroanalytical MethodsMiscellaneous Instrumental TechniquesAppendix 1: formulation for resolution focus and education CalculationsAppendix 2: The Language of caliber coverage and G

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Extra info for Analytical Chemistry for Technicians, Fourth Edition

Example text

In addition, instrumental methods are generally used to determine the minor constituents, or constituents that are present in low levels, rather than the major constituents of a sample. We discuss wet chemical methods in Chapters 3 and 5 of this text. Chapter 6 is concerned with instrumental methods in general, and Chapters 7–15 involve specific instrumental methods. 1: “CHARACTERIZING” A MATERIAL A combination of the qualitative analysis and quantitative analysis of a material or matrix is sometimes called characterizing the material.

After picking up the lunch items you want, you proceed to the personal hygiene aisle to look for your toothpaste. 15% w/v. ,” you again say to yourself. Finally, you stop by the pharmaceutical shelves and pick up a bottle of your favorite vitamin. 7 mg of riboflavin in every tablet and marvel how the manufacturer can know that that is really the case. There is a seemingly endless list of examples of scenarios like the above that one can think of without even leaving the grocery store! We could also visit a hardware store and look at the labels of cleaning fluids, adhesives, paint or varnish formulations, paint removers, garden fertilizers, and insecticides and make similar statements.

8 Illustration of the difference between accuracy and precision. In this illustration, “accurate” describes the data set when the mean of the measurements fall on or near the true value line. “Precise” describes the data set when the measurements are bunched together. 0000 g. 0002 g. 0002 g, we say the balance is both precise and accurate. 9987 g, we say that the balance is precise, but not accurate. 9991 g, the data are neither precise nor accurate. 0000 g, then the balance is not precise, but it does “appear” to be accurate.

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Analytical Chemistry for Technicians, Fourth Edition by John Kenkel


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