Analytical chemistry: Difference between revisions
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imported>Howard C. Berkowitz No edit summary |
imported>Henry A. Padleckas (refining outline of pre-stub article) |
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'''Analytical chemistry''' is the sub-discipline of [[chemistry]] that determines what constituents are in a sample (i.e., ''qualitative analysis'') and how much of each (i.e., ''quantitative analysis''). There are a great many sub-disciplines, dividing on such criteria as: | '''Analytical chemistry''' is the sub-discipline of [[chemistry]] that determines what constituents are in a sample (i.e., ''qualitative analysis'') and how much of each (i.e., ''quantitative analysis''). In somes cases, a sample is analyzed for an "attribute" related to its [[chemical]] content, such as [[pH]], [[Density|specific gravity]], or [[ash]] content determination. Analytical chemistry also involves the development of chemical analysis methods instrumentation. There are a great many sub-disciplines, dividing on such criteria as: | ||
*Focus on atoms vs. molecules | *Focus on atoms vs. molecules | ||
*Molecules are simple or complex (e.g., polymers and biochemicals) | *Molecules are simple or complex (e.g., polymers and biochemicals) | ||
*The subjects are primarily organic or inorganic | *The subjects are primarily organic or inorganic | ||
*Level of sensitivity required | *Level of sensitivity required | ||
==Introductory remarks== | |||
=Types of chemical analysis= | |||
==Traditional ("wet")== | ==Traditional ("wet")== | ||
===Titration=== | ===Qualitative wet methods=== | ||
====Derivitization==== | |||
===Volumetric=== | |||
====[[Titration]]==== | |||
===Gravitimetric=== | ===Gravitimetric=== | ||
== | ==Instrumental== | ||
===Ion-specific electrodes=== | ===[[Spectroscopy]]=== | ||
===[[pH meter|pH]] and [[Ion-selective electrode|Ion-selective (specific) electrodes]]=== | |||
===Polarimetry=== | ===Polarimetry=== | ||
===Atomic spectrometry=== | ===Atomic spectrometry=== | ||
==Separation methods== | |||
==Separation of different phases== | |||
====[[Extraction (chemistry)|Extraction]]==== | |||
===[[Chromatography]]=== | |||
==Nuclear chemistry== | ==Nuclear chemistry== | ||
*[[Neutron activation analysis]] | *[[Neutron activation analysis]] | ||
Revision as of 06:39, 3 March 2011
Analytical chemistry is the sub-discipline of chemistry that determines what constituents are in a sample (i.e., qualitative analysis) and how much of each (i.e., quantitative analysis). In somes cases, a sample is analyzed for an "attribute" related to its chemical content, such as pH, specific gravity, or ash content determination. Analytical chemistry also involves the development of chemical analysis methods instrumentation. There are a great many sub-disciplines, dividing on such criteria as:
- Focus on atoms vs. molecules
- Molecules are simple or complex (e.g., polymers and biochemicals)
- The subjects are primarily organic or inorganic
- Level of sensitivity required