Studied by 10 people
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)
Note
Flashcard