Terms (53)
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What makes instrumental analysis different from wet chemistry?
Instrumental is done with electrically based instruments
instrument
converts physical or chemical characteristics of an analyze to information that can be manipulated and
interpreted by humans.... DOES NOT DO WORK (machine).
what does all chemical analysis need? i.e. every instrument (3)
energy source -> system under study -> analytical information (response)
, data domains
modes of encoding, going from one system to another to extract information
3 electrical domains
1. analog (encoded as a magnitude of electrical quantities)
2. time - signal fluctuations per unit time (a frequency reading)
3. digital (most common, usually a computer)
most common electrical domain
digital (computer) it is either on/off or high/low
detector
mechanical, electrical or chemical device that identifies, record and indicates a change in environment (i.e. the
nerve of the instrument)
Hide definitions
What makes instrumental analysis different from wet chemistry?
Instrumental is done with electrically based instruments
instrument
converts physical or chemical characteristics of an analyze to information that can be manipulated and
interpreted by humans.... DOES NOT DO WORK (machine).
what does all chemical analysis need? i.e. every instrument (3)
energy source -> system under study -> analytical information (response)
, data domains
modes of encoding, going from one system to another to extract information
3 electrical domains
1. analog (encoded as a magnitude of electrical quantities)
2. time - signal fluctuations per unit time (a frequency reading)
3. digital (most common, usually a computer)
most common electrical domain
digital (computer) it is either on/off or high/low
detector
mechanical, electrical or chemical device that identifies, record and indicates a change in environment (i.e. the
nerve of the instrument)
