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Laser Ablation ICP-MS

The heart of the lab is a recently installed Quadrupole ICP-MS (Agilent 8800QQQ). In regular single quadrupole mode, it offers great flexibility due to easy handling and high sensitivity, while the QQQ mode (a reaction/collision cell sandwiched between two quadrupoles) allows removal of several notorious interferences (e.g., removal of 204Hg from 204Pb).

Installation of a second rough pump designed to reduce pressure in the ICP interface increased sensitivity by a factor of >2 in laser ablation mode. The Agilent 8800QQQ is permanently coupled to a New Wave NWR 213 laser ablation system, avoiding time-consuming switching between laser and solution mode. An Agilent 7500a is available for trace element analysis in solution mode.

A range of accessories further the laser ablation facility such as: a self-made gas filter consisting of a mix of gold-coated glass beads and active charcoal pellets, an additional mass flow controller for 5 ml N2/min, and designated PET tubing for halogen work. Combined together they provide significant improvement in stability, sensitivity and contamination reduction.

Recent Research activities

  • Implementation of new analytical protocols is a constant challenge in our lab. We always rigorously test potential interferences and aim in obtaining several matrix-matched standards
  • U/Pb geochronology (zircon, rutile, monazite, apatite, titanite)
  • Trace elements in rutile, sulphides, magnetite
  • Major and trace elements in apatite
  •  Major elements in concrete

 

Kontaktinformation

Thomas Zack

Institutionen för geovtenskaper
Göteborgs universitet

E-mail: zack@gvc.gu.se
Phone: +46 31 786 2801

 

Sidansvarig: Henrik Thelin|Sidan uppdaterades: 2018-10-18
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