ICP-OES

INDUCTIVELY COUPLED PLASMA -OPTICAL EMISSION SPECTROMETER(ICP-OES)

 

Make: Agilent Technologies

Model: 700 series ICP-OES

Principle

ICP, abbreviation for Inductively Coupled Plasma, is one method of optical emission spectrometry. When plasma energy is given to an analysis sample from outside, the component elements (atoms) is excited. When the excited atoms return to low energy position, emission rays (spectrum rays) are released and the emission rays that correspond to the photon wavelength are measured. The element type is determined based on the position of the photon rays, and the content of each element is determined based on the rays' intensity. 

Sample preparation

When we dissolved solid sample with the above procedures, filter the dissolved sample through Whatman filter paper. The sample solution pH<2.0 kept before going to the instrument.

Applications

Determination of cadmium spectra

Calibration curve

Strengths

·       Low detection limits

·       Multiple elements

·       Limited spectral inferences

·       Good stability

·       Low matrix effects

Limitations

·       Liquid samples only

·       Maintenance cost is high (Argon gas)

 

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Dr. U. Rambabu,M.Phil.;Ph.D
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C-MET, IDA, Phase III, Cherlapally,
HCL Post, Hyderabad- 500051
Email: rambabu[at]cmet[dot]gov[dot]in;
rambabu32[at]rediffmail[dot]com
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