Chapter 0 – The Analytical Process
0-1 The Analytical Chemist’s Job
Homogeneous: composition is the same everywhere.
Heterogeneous: composition differs from place to place.
Decanted: poured off.
Analytes: substances being measured.
Quantitative transfer: a complete transfer.
Slurry: a suspension of solid in a liquid.
Supernatant liquid: liquid above the packed solid.
Sample preparation: transforming a sample into a state that is suitable for analysis.
Centrifugation and filtration are used to separate undesired solid residue from the
aqueous solution of analytes.
Qualitative analysis: identifying what is an unknown.
Quantitative analysis: identifying how much is present.
Calibration curve/Standard Curve: a graph