OCGC Seminar - Characterization of natural particles using FFF-ICP-MS


Dr. Soheyl Tadjiki
Science Director,
Postnova Analytics Inc

Diagrams about Mass Spectrometer signal


Wednesday, March 16th 
11:30 a.m.  

Harrison Hall
601 Booth Street
Geological Survey of Canada



Field-Flow Fractionation (FFF) is a chromatography-like separation technique that provides high resolution fractionation of macromolecules, colloids and particles. In FFF, the separation is purely physical and takes place in an open channel (with no stationary phase) by applying an external physical force to the sample species. Different FFF sub-techniques have been developed using various fields such as crossflow, centrifugal, thermal gradient, electrical, magnetic and acoustic.

Using Inductively Coupled Plasma Mass Spectrometry as an online multi-element detector allows for the measurement of elemental concentrations along the size distribution. The hyphenation of these two powerful analytical techniques enables study of important properties of environmental particles such as elemental-based size distribution, elemental ratio distribution, mineralogy change and pollutant content.

The fundamentals of FFF and its sub-techniques will be summarized in this presentation. The basics of hyphenation to ICP-MS will be explained and some applications of FFF-ICP-MS in various fields will be discussed.