Laser Ablation Inductively Coupled Plasma mass Spectrometer (LA-ICPMS)Back to Mineral Characterisation Studies

• The Laser ablation technique is dominantly used for in situ analysis of geological samples to study trace elements concentrations and zonations in minerals and rocks.
• The technique involves removal of mass from solid samples by application of laser energy.
• The ablated / removed mass of sample is then analysed by a suitable analytical technique.
• At LAICPMS, Laboratory GSI, Faridabad a CETAC Nd:YAG 213nm Laser Ablation (LA) System coupled with Agilent 7700 Inductively Coupled Plasma – Quadrupole Mass Spectrometer [ICPMS (QP)] is used to analyse the composition of the sample with sensitive detectors that measure concentrations in the parts per billion

Standard Operating Procedure

Capabilities:

• The technique is extremely useful for trace element and REE analysis of minerals up to concentration in part per billion (ppb).
• To determine the bulk composition of rocks by pellet preparations and fusion beads
• Elemental mapping on a sub-grain scale
• Direct analysis from petrographic thin sections and polished sections etc.

Application in earth science

Existing Locations:

• NCEGR,Faridabad

  Additional Director General
  National Mission Head-IV
  Central Headquater
  
  Geological Survey of India
  15 A & B Kyd Street
  Kolkata-700016
  Fax- 033-22861716
  Email- hodm4@gsi.gov.in