Laboratory Introduction

The equipment available in this laboratory includes:

Atomic absorption spectrometer (AAS)

Atomic absorption spectrometer is widely used in the mining sector. This device is capable of measuring elements in a sample from a few ppm to a few percent (depending on the type of element).
Considering the available lamps, 28 elements can be measured in mineral samples. In this device, except for the elements “Zr, Ti ‌‌, Si‌‌, Ga, Ca ‌‌, Ba, Al” which are measured by acetylene-nitrous oxide flame, other elements can be measured directly by acetylene-air flame.
The lamps available in this laboratory are:
Al, Ag, As, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, Hg, K, Li, Mg, Mn, Na, Ni, Pb, Sb, Si, Sn, Sr, Ti, V, Zn, Zr

Flame Photometer

Measuring alkali and alkaline earth metals by flame photometer is one of the most important common methods of chemical analysis. In this method, using a low-temperature flame, the amount of these metals in the sample can be easily measured. In fact, the compounds of these two groups decompose in the flame and eventually turn into atoms. Some of these atoms are excited to a higher energy level and when they return to their ground state, they emit light. The light emitted by the atoms of these two groups is in the visible region of the electromagnetic spectrum. The intensity of the light emitted at any given moment is proportional to the number of particles in the flame and thus the concentration of the element is determined. The elements “Ba, Ca, Na, Li, K” can be measured by this device.