capítulo por capítulo baixar Analytical Chemistry: Volumetric, Gravimetric and Infrared Methods

A result is not just a number.

Two analysts run the same titration on the same sample and report
different answers. Neither made a mistake at the bench. The difference was
decided earlier — in the standard, in the blank, in how the sample was
taken, and in whether the method could answer the question at all.

This book follows one thread from the analytical question to the
reported result. It covers volumetric analysis, gravimetric analysis and
infrared spectroscopy, and treats error, calibration and uncertainty as
part of the method rather than as an appendix to it.

What is inside

20 chapters across six parts, from method selection through to
structured spectral interpretation. 43 worked examples with the arithmetic
shown in full — not the answer, the working. 45 figures drawn for
black-and-white print, so nothing depends on colour you will not see. 91
tables of conditions, limits and comparisons. A closing workbook with
cross-method case studies, full solutions, a formula reference, statistical
tables and a glossary.

Who it is for

Undergraduate chemistry students meeting quantitative analysis for the
first time, laboratory technicians who need the reasoning behind a standard
operating procedure, and anyone who has to defend a number to someone who
did not watch it being measured.

How it is organised

Part I takes an analytical question and turns it into a method. Part II
covers volumetric analysis: glassware, standards, acid–base, redox,
precipitation and complexometric titrations, and endpoint quality. Part III
covers gravimetric analysis: precipitate formation, digestion and ignition,
gravimetric factors, thermogravimetry, and constant mass. Part IV is the
quality system both methods share — calibration, blanks, controls,
traceability and measurement uncertainty. Part V covers infrared
spectroscopy as analytical evidence. Part VI puts them back together.

A defensible result begins before the first measurement.

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