Flame photometry (Edexcel GCSE Chemistry): Flashcards
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Practise the cards
14 cards from this deck
Flame photometer
Flame photometer
Instrument to identify metal ions & determine concentration
Flame photometry useful for analysing
Flame photometry useful for analysing
Small quantities of metal ions accurately
First step in flame photometry
First step in flame photometry
Sample sprayed into flame, evaporated at high temps
Burning sample emits in flame photometry
Burning sample emits in flame photometry
Light with specific wavelengths
Detector measures in flame photometry
Detector measures in flame photometry
Light intensity emitted by metal ions
Tool to determine metal ion concentration
Tool to determine metal ion concentration
Calibration curve
How calibration curve is created
How calibration curve is created
Measuring light emission of standard solutions (known concs)
Each metal ion produces
Each metal ion produces
Unique line spectrum
Flame photometry vs flame tests - sensitivity
Flame photometry vs flame tests - sensitivity
Flame photometry is more sensitive
Flame photometry can detect
Flame photometry can detect
Multiple metal ions in mixtures
Flame tests typically identify
Flame tests typically identify
Single metal ion at a time
Advantage of flame photometry: sensitivity
Advantage of flame photometry: sensitivity
Detects very small amounts of substances
Advantage of flame photometry: speed
Advantage of flame photometry: speed
Can be automated, faster than manual testing
Advantage of flame photometry: accuracy
Advantage of flame photometry: accuracy
Reduces human error, more reliable results