NEW
Font size
WorksheetsFlame Emission spectrophotometry
Total questions: 10
Worksheet time: 4mins
Which component helps isolate the wavelength to be measured?
Nebulizer
Flame
Monochromator
Photo detector
In the internal standard method, lithium is used as an internal standard for:
Calcium and magnesium
Sodium and potassium
Iron and zinc
Copper and lead
Which of the following is NOT an advantage of flame photometry?
Simple and quick
Inexpensive
Convenient and selective
Suitable for heavy metals
The principle of flame photometry is based on:
Absorption of light
Emission of light by excited atoms
Reflection of light
Refraction of light
Which of the following causes interference in flame photometry?
Mutual excitation
Stable flame temperature
Constant gas pressure
High wavelength selectivity
The wavelength emitted by atoms in flame photometry is specific for each element.
True
False
The photodetector in a flame photometer converts emitted light into an electrical signal
True
False
The internal standard acts as a standard rather than a reference signal.
True
False
Flame photometry is ideal for measuring heavy and transition metals.
True
False
The intensity of emitted light in flame photometry is directly proportional to the concentration of the element in the sample.
True
False
