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Inductively Coupled Plasma – Optical Emission Spectrometer (ICP-OES)

Instrument details

ModelProdigy 7 (Teledyne Leman Lab)

Applications

ICP-OES is used for a wide range of applications in the following industries: 

  • Environmental
  • Oil Analysis
  • Pharmaceutical
  • Food
  • Petrochemical
  • Mining
  • BioFuels
  • Soil samples
  • Plant tissue samples

Specifications:

Focal length500mm
Entrance Slit 60um
Image Stabilized PlasmaYes
Optical Resolution (pm) 0.007nm @ 200nm
1st measurement from standby10-15 minutes
Need Correction for EIEsNo
RF Generator Frequency40.68MHz
RF Power 600-2000W
CameraCMOS- 3.34MegaPixels
DetectorL-PAD
Pixels Anti-Blooming and AntiSaturatingYes
Spectral Range165nm – 1100nm
Camera Cooling for Reduced Noise-30C
Optics Purge 0.7L/min
Increase purge for <185nmNot Required
Axial/Dual View Tail Cut Air Knife – Zero Maintenance

Working Principle

Inductively Coupled Plasma – Atomic Emission Spectrometry (ICP- AES) is an emission spectrophotometric technique, exploiting the fact that excited electrons emit energy at a given wavelength as they return to ground state after excitation by high temperature Argon Plasma. The fundamental characteristic of this process is that each element emits energy at specific wavelengths peculiar to its atomic character. The energy transfer for electrons when they fall back to ground state is unique to each element as it depends upon the electronic configuration of the orbital. The energy transfer is inversely proportional to the wavelength of electromagnetic radiation, 

E = hc/ λ … (where h is Planck’s constant, c the velocity of light and λ is wavelength), and hence the wavelength of light emitted is also unique. 

Although each element emits energy at multiple wavelengths, in the ICP-AES technique it is most common to select a single wavelength (or a very few) for a given element. The intensity of the energy emitted at the chosen wavelength is proportional to the amount (concentration) of that element in the sample being analyzed. Thus, by determining which wavelengths are emitted by a sample and by determining their intensities, the analyst can qualitatively and quantitatively find the elements from the given sample relative to a reference standard. 

The wavelengths used in AES ranges from the upper part of the vacuum ultraviolet (160 nm) to the limit of visible light (800 nm). As borosilicate glass absorbs light below 310 nm and oxygen in air absorbs light below 200 nm, optical lenses and prisms are generally fabricated from quartz glass and optical paths are evacuated or filled by a non absorbing gas such as Argon. 

Charges (inclusive of GST)

 IndustryUniversityNational Lab/R&Ds 
Standardization & Estimation1475/-295/-708/-Per sample
Estimation for subsequent sample531/-118/-472/-Per sample
Sample preparation3835/-885/-1770/-Per sample

Contact person:

Dr. K.J.Jeyabaskaran,
Principal Scientist
National Research Centre for Banana
Thogamalai Road, Thayanur Post
Trichy 620102, Tamil Nadu.