Analysis of Inorganic Substances (HSC SSCE Chemistry): Flashcards
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Practise the cards
10 cards from this deck
Concentration limit for instrumental techniques
Concentration limit for instrumental techniques
Below 1 ppm
What AAS measures
What AAS measures
Light absorbed by electrons in atoms
AAS lamp material requirement
AAS lamp material requirement
Same element being tested
Five heavy metals of concern
Five heavy metals of concern
Mercury (Hg), Lead (Pb), Aluminium (Al), Arsenic (As), Cadmium (Cd)
State of sample during AAS
State of sample during AAS
Vaporised (individual gaseous atoms)
Purpose of calibration curve
Purpose of calibration curve
Determine unknown concentration from absorbance
Colourimetry principle
Colourimetry principle
Colour intensity proportional to concentration
Filter colour for blue solution
Filter colour for blue solution
Yellow (complementary colour)
Sample container in colourimeter
Sample container in colourimeter
Cuvet
Blank for colourimeter calibration
Blank for colourimeter calibration
Distilled water (sets zero absorbance)