Analytes and Analysis Flashcards
study, observe, breakdown, compute/calculate
Analysis
substance that is being identified and/or quantitated
Analytes
focuses on the weight and/or mass of the present analyte
Gravimetric methods
overall volume/area
Volumetric Methods
deals with electricity
Electroanalytical Method
differentiate in potential, changes, productivity
electrophoresis
Measuring light and the changes in its wavelength
Spectroscopic Method
Misc
measurement of temperature or thermal conductivity
vibrations
pH
Spectrophotometry means
Spectro - spectrum
photo - light
Metry- measurement
Identity of analyte
Quality- describe, identify, focus on chemical reactions
Chemical reactions - color changes, presence of bubbles
Formation of precipitates
Qualitative
how much-> certain value
Quantitative
Typical Process of Quantitative Analysis
- Chose a method
- Acquire a sample - sample portion of a whole
- Processing the sample
- Eliminate interferences
- Measure
- Calculate results
- Evaluate results
anything that interferes w/ the measurement of the analyte
⇒ (up arrow) falsely increase
(down arrow) false decrease the value of the analyte
Eliminate interferences
close to the expected value/ target
Accurate/ accuracy
reproducibility of the result
Precise/precision
