Overview of Analytical Chemistry

Analytical chemistry

________ is a measurement science.

measurements of property

Calibrating and Measuring Concentration: ________ is directly proportional (kX)

possible matrix

Eliminating Interferences: reducing errors in the analysis as close to 0 as ________ or sample matrix: collections of all components in the sample containing an analyte.

Gravimetric methods

________- determine the mass of analyte.

level of accuracy

Choosing a Method: ________: investment time /money, number of samples and components in the samples.

Spectroscopic methods

________- based on the interaction of electromagnetic radiation with analyte atoms & molecules.

Volumetric methods

________- use volume of solution containing sufficient reagent to reach with the analyte.

Analytical chemistry

________ is used during NASAs rover exploration in Mars on July 4, 1997 where the Sojourner returned rock and soil compositions where it was known that Mars was at one point warn and wet on the surface and atmosphere.

Gravimetric methods

determine the mass of analyte

Volumetric methods

use volume of solution containing sufficient reagent to reach with the analyte

Electroanalytical methods

measure electrical properties (potential, current, resistance)

Spectroscopic methods

based on the interaction of electromagnetic radiation with analyte atoms & molecules

Acquiring the Sample

the same consistency of sample in bulk must be taken to avoid sampling errors

Processing the Sample

preparing laboratory sample, defining replicate samples, preparing solutions

Calibrating and Measuring Concentration

measurements of property is directly proportional (kX)