AAS

ATOMIC ABSORPTION SPECTROMETER (AAS)

Make: GBC 932

Principle: A light source emitting a narrow spectral line of the characteristic energy is used to excite the free atoms formed in the flame. The decrease in energy (absorption) is then measured. The absorption is proportional to the concentration of free atoms in the flame, given by Lambert-Beer law.

Accessories Available:

Hydride Generator: HG 3000

                                              

Applications in various fields:

Atomic absorption spectrometry has many uses indifferent areas of chemistry.

Clinical analysis - Analyzing metals in biological fluids such as blood and urine.

Environmental analysis - Monitoring our environment – e.g finding out the levels of various elements in rivers, seawater, drinking water, air, petrol and drinks such as wine, beer and fruit drinks.

Pharmaceuticals- In some pharmaceutical manufacturing processes, minute quantities of a catalyst used in the process (usually a metal) are sometimes present in the final product. By using AAS the amount of catalyst present can be determined.

Industry- Many raw materials are examined and AAS is widely used to check that the major elements are present and that toxic impurities are lower than specified – e.g in concrete, where calcium is a major constituent, the lead level should be low because it is toxic.

Mining- By using AAS the amount of metals such as gold in rocks can be determined to see whether it is worth mining the rocks to extract the gold.

 

Strengths

Limitations

Easy to use

Moderate detection limits

Very fast        

Element limitations

Lowest capital cost

1-10 elements per determination

Relatively few interferences

No screening ability

Very compact instrument

 

Good performance

 

Robust interface

 

 

 

Instrument Parameters:

 

Parameters for RoHS elements:

Lead (Pb)

Flame type: Air-Acetylene (Oxidizing)

Lamp current: 5mA

Wavelength: 217nm

Slit width: 1.0 nm

Working range: 2, 4, 6, 8, 10ppm

Cadmium (Cd)

Flame type:  Air-Acetylene (Oxidizing)

Lamp current: 3 mA

Wavelength: 228.8nm

Slit width: 0.5 nm

Working range: 0.1, 0.3, 0.5, 0.7, 0.9 ppm

Mercury (Hg)

Cold vapor technique

Lamp current: 4mA

Wavelength: 253.7nm

Slit width: 0.5 nm

Working range: 20, 40, 60, 80, 100 ppb

 

 

DOWNLOADS
Brochure

REQUEST QUOTE
Enquiry Form

CONTACT US
for more information
Dr. U. Rambabu,M.Phil.;Ph.D
Quality Manager
 
C-MET, IDA, Phase III, Cherlapally,
HCL Post, Hyderabad- 500051
Email: rambabu[at]cmet[dot]gov[dot]in;
rambabu32[at]rediffmail[dot]com
Ph :+91-40-27265673; 2720327;
Mobile: +91-9441435672;
9010984021
Fax: +91-40-27261658

 

Route Map

routemap

Hit Counter: