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PerkinElmer AAnalyst 300
Location: Friedland 202
PerkinElmerAA300.jpg:
How It Works and What It Does
The AA-300 is used to determine the unknown concentration of an individual element by measuring the amount of light the unknown
concentration absorbs. Instrument readouts are calibrated to display concentration directly. The basic instrumentation requires a primary light
source, an atom source and a detector. The light source is a hollow cathode lamp (HCL) or electrode discharge lamp (EDL), which emits a
spectrum specific to the element from which it is made. The light beam passes through either an air-acetylene or nitrous oxide-acetylene flame,
which has a high temperature and specific flow rate. The atom source introduces the sample into the flame as an aerosol and the heat produces
free analyte atoms. Analyte atoms in the flame that correspond to the particular lamp being used absorb energy from the light source. A detector,
usually a photomultiplier tube, measures the light intensity exiting the flame. The electronics convert the amount of light absorbed to the actual
sample concentration.
The AA-300 is equipped with an automatic six-lamp turret and is programmed to perform sequential multielement analysis. The AA-300 is
equipped with lamps for the following elements: Ag, Al, As, Ba, Ca, Cd, Cr, Cu, Fe, K, Na, Mg, Ni, Pb and Zn The Iron(Fe) and Copper(Cu) lamps
are the most commonly used.
Directions for Use
Instructions for Use
by Golda Yelaun
Instruction for AA – Flame Analyst-300.
Check the location of exhaust vent (should be located at least 4 meters from the Flame).
Check the pressure of the AA Gas Purifier assembly. Make sure the output pressure is between 51 and 65 psig. ( on the wall , behind the
instrument).
