ANACHEM Flashcards
The science of obtaining, processing, and communicating information about
the composition and structure of matter.
Analytical chemistry
The art and science of
determining what matter is and how much of it exists.
Analytical chemistry
Provides information about the identity of
an atomic, molecular or biomolecular species
Qualitative
Provides numerical information as to the
relative amounts of species
Quantitative
Specie of special interest
Analyte
Part of sample outside analyte
Matrix
Usually employs precipitation, titrimetric & gravimetric methods
Wet-analysis
Uses sophisticated instruments capable of measuring analyte’s physical & chemical properties
Instrumental methods
Ends up consuming the sample or renders it unusable for the succeeding analyses
Destructive analysis
Renders the sample usable for the succeeding analyses
Non-destructive analysis
Amount of analyte or constituent present for:
Trace
Minor
Major
Trace = x < 0.01%
Minor = 0.01% < x < 1%
Major = 1% < x
Amount of sample size for:
Macro
Semi-micro
Micro
Ultramicro
Macro = 100mg (100µL)< x
Semi-micro = 10mg < x < 100mg (50µL to 100µL)
Micro = 1.0mg < x < 10mg ( < 50µL)
Ultramicro = x < 1.0mg
Determines only a limited number of specie in the sample
Proximate or Partial
Amount of each element in the sample regardless of composition
Ultimate
Amount of each element in the sample present per composition
Complete