What is linear range? - ANSWER-Analyte concentration over the response that is
proportional to the concentration.
When analyzing an unknown where should the concentration of the unknown fall? -
ANSWER-Somewhere within the linear range
What should you do if the unknown concentration is below the linear range? -
ANSWER-perform pre-concentration
Examples of pre-concentration - ANSWER-evaporating, anodic stripping voltammetry
What should you do if the concentration of the unknown is greater than the linear
range? - ANSWER-dilute the concentration so that it falls closer to the linear range
What is the electromagnetic spectrum in order of increasing wavelength? - ANSWER-
gamma, x-rays, UV, visible light, IR, microwave, radio
What is the electromagnetic spectrum in order of increasing frequency? - ANSWER-
radio, microwave, IR, visible, UV, x-rays, gamma
In what region of the electromagnetic spectrum is the resonant frequency of electrons in
glass? - ANSWER-ultraviolet
More about regions (answer IDK) - ANSWER-IDK
How do you calculate the concentration of a sample given a point calibration? (answer
IDK) - ANSWER-IDK
What are the common methods of atomization in atomic absorption? - ANSWER-flame
atomization, electrothermal atomization, furnace atomization
What type of sample can be used for flame atomization? - ANSWER-liquid
What type of sample can be used for electrothermal atomization - ANSWER-solid and
slurry
What type of sample can be used for furnace atomization? - ANSWER-solid and slurry
, What are the pros and cons of using electrothermal atomization and/or furnace
atomization compared to using flame atomization? - ANSWER-Both offer a lower
detection limit and can work with solid samples. However, both are slower due to
heating-cooling cycles and are less precise making them less producible.
Doppler effects - ANSWER-an observed change in the frequency of a wave when the
source or observer is moving
What is the light source of atomic absorption? - ANSWER-hallow cathode lamp
What results in greater Doppler effect in flame atomization? - ANSWER-Temperature in
flame is greater than that in hallow cathode lamp which means that flames also have
wider spectral lines. This enables a greater doppler effect.
What is the difference between hollow cathode lamp and flame? - ANSWER-Hollow
cathode lamp has narrower spectral lines than the spectral lines found in flames
Spectral lines - ANSWER-The wavelengths where a specific element can absorb or
emit light
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *air*
Temperature, °C *1700-1900* - ANSWER-natural gas
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *oxygen*
Temperature, °C *2700-2800* - ANSWER-natural gas
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *air*
Temperature, °C *2000-2100* - ANSWER-hydrogen
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *oxygen*
Temperature, °C *2550-2700* - ANSWER-hydrogen
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *air*
Temperature, °C *2100-2400* - ANSWER-acetylene
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *oxygen*
Temperature, °C *3050-3150* - ANSWER-acetylene
Given the following information about the flame atomization below, name the fuel type
that should be used.
proportional to the concentration.
When analyzing an unknown where should the concentration of the unknown fall? -
ANSWER-Somewhere within the linear range
What should you do if the unknown concentration is below the linear range? -
ANSWER-perform pre-concentration
Examples of pre-concentration - ANSWER-evaporating, anodic stripping voltammetry
What should you do if the concentration of the unknown is greater than the linear
range? - ANSWER-dilute the concentration so that it falls closer to the linear range
What is the electromagnetic spectrum in order of increasing wavelength? - ANSWER-
gamma, x-rays, UV, visible light, IR, microwave, radio
What is the electromagnetic spectrum in order of increasing frequency? - ANSWER-
radio, microwave, IR, visible, UV, x-rays, gamma
In what region of the electromagnetic spectrum is the resonant frequency of electrons in
glass? - ANSWER-ultraviolet
More about regions (answer IDK) - ANSWER-IDK
How do you calculate the concentration of a sample given a point calibration? (answer
IDK) - ANSWER-IDK
What are the common methods of atomization in atomic absorption? - ANSWER-flame
atomization, electrothermal atomization, furnace atomization
What type of sample can be used for flame atomization? - ANSWER-liquid
What type of sample can be used for electrothermal atomization - ANSWER-solid and
slurry
What type of sample can be used for furnace atomization? - ANSWER-solid and slurry
, What are the pros and cons of using electrothermal atomization and/or furnace
atomization compared to using flame atomization? - ANSWER-Both offer a lower
detection limit and can work with solid samples. However, both are slower due to
heating-cooling cycles and are less precise making them less producible.
Doppler effects - ANSWER-an observed change in the frequency of a wave when the
source or observer is moving
What is the light source of atomic absorption? - ANSWER-hallow cathode lamp
What results in greater Doppler effect in flame atomization? - ANSWER-Temperature in
flame is greater than that in hallow cathode lamp which means that flames also have
wider spectral lines. This enables a greater doppler effect.
What is the difference between hollow cathode lamp and flame? - ANSWER-Hollow
cathode lamp has narrower spectral lines than the spectral lines found in flames
Spectral lines - ANSWER-The wavelengths where a specific element can absorb or
emit light
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *air*
Temperature, °C *1700-1900* - ANSWER-natural gas
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *oxygen*
Temperature, °C *2700-2800* - ANSWER-natural gas
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *air*
Temperature, °C *2000-2100* - ANSWER-hydrogen
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *oxygen*
Temperature, °C *2550-2700* - ANSWER-hydrogen
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *air*
Temperature, °C *2100-2400* - ANSWER-acetylene
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *oxygen*
Temperature, °C *3050-3150* - ANSWER-acetylene
Given the following information about the flame atomization below, name the fuel type
that should be used.
