Analytical chemistry

Aliquot

A precise, measured portion of a larger sample

Matrix

Everything else in a sample except for the analyte.

Analyte

Component of interest in a sample

Determinate (Systematic) errors

An error that causes the mean value to differ from accepted values as measurements are too high or too low from the mean creating bias measurements

Dissolution

The physical process where a solid solute enters a solvent to form a homogenous solution

Sampling

The process by which a representative sample/fraction is acquired

Precision

The reproducibility of measurements

Accuracy

The closeness of measurements to a true /correct value

Extraction

A separation process used to pull out an analyte from a complex mixture or matrix.

Indeterminate (Random) errors

data scattered more/less around the mean value

Gross error

A result of huma error