Principles of Chemical Analysis Quiz

Blank solutions establish a baseline by measuring the signal produced by the solvent or reagents without the analyte.

Filtration separates solids from liquids or suspensions, facilitating the isolation and purification of analytes.

Reagents participate in chemical reactions with analytes, forming products that can be detected or quantified to analyze the sample.

Solvents dissolve samples to create homogeneous solutions, facilitating accurate measurements and reactions in chemical analysis.

Titration quantifies the concentration of a specific substance by reaction with a solution of known concentration.

Calibration curves correlate instrument response to known concentrations, allowing for the quantification of unknown samples.

Standard addition involves adding known quantities of a standard solution to a sample to determine the concentration of an unknown analyte.

NMR spectroscopy elucidates the structure of organic compounds by analyzing the magnetic properties of their nuclei.

Phenolphthalein changes color at the equivalence point of an acid-base titration, indicating the completion of the reaction.

Primary standards are highly purified compounds used to accurately determine the concentration of other substances via titration.

Size-exclusion chromatography separates molecules based on their size and shape, allowing larger molecules to elute first.

AAS measures the absorption of light by ground-state atoms to quantify the concentration of specific elements in a sample.

Non-destructive techniques allow for analysis without altering or destroying the sample, preserving its integrity for further testing.

ICP-MS ionizes samples using inductively coupled plasma, allowing for the precise determination of elemental concentrations.