Study Set Content:
Amplifier
detector
recorder
-FES a sprayed solution or gas containing a sample of the substance to be examined is exposed to
flame
When the flame heat (blank) the solvent and destroys the chemical bonds of the analyte, (blank) of the substance are created.
evaporates, free atoms
also causes atoms to become electrically charged particles, which emit light when they return to their ground electronic state.
Heat
The sample containing the metal is volatilized in a natural gas compressed air flame at
2000C
The sample containing the metal is volatilized in a natural gas compressed air flame at 2000C. A higher temperature (2500C) may be obtained using (blank) and is required for analysis of (blank)
air/acetylene , Mg by AES
prisms and diffraction gratings
MONOCHROMATOR
These are used to select the specific kind of radiation generated by the analyte and to remove any other undesirable radiation
MONOCHROMATOR
MONOCHROMATOR As a result, it is also known as
the wavelength selector’
produce more accuracy and resolution than prisms.
Diffraction gratings
The light is reflected off the (blank), causing wavelengths to be distributed through constructive interference at wavelength-dependent diffraction angles.
angled grating surface
transducers that convert the spectrometer’s analog output into an electric signal that can be seen and processed on a computer.
DETECTORS -
receive signals from the detectors and amplify them multiple times such that they are usable or comparable.
AMPLIFIER -
- atomic emission spectroscopy employs computers as readout devices. Using the atomic emission ranges library, computers analyze the data in the form of spectra and plot the calibration curve.
READOUT Device
WAVELENGHT RANGE
K
766 nm
Li
670 nm
Ca
622 nm
Na
589 nm
