The Ilmeno-Vishnevogorsky miaskite-phenite-carbonatite complex (IVС), located in the Urals folded region, is a representative of "linear type" carbonatite complexes, with which Nb-Zr deposits are associated. ore potential linear time and duration ore-forming processes, geodynamic setting remain subject discussion. In order to estimate age formation processes IVC, U-Pb dating zircon (LA-ICP-MS) ...

• Multi-Element Analysis Introduction Laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS) has developed over recent years to become a sophisticated tool for the multielemental and isotope ratio analysis of solid samples. Besides a true multi-elemental capability, independent of matrix, the major requirements for most geological laser applications in ICP-MS are the highest se...

Thiol-containing compounds such as glutathione, cysteine and homocysteine react with selenite under specific conditions to form selenotrisulfides of significance in cellular systems. This study describes the synthesis and mass spectrometric characterization of selenotrisulfides of glutathione (GSH), cysteine (Cys) and homocysteine (HCys) by electrospray-MS (ESI-MS). The synthesized species are ...

Like in the previously published LA-ICP-MS method, sample itself acts as perfectly matrix matched reference material, but combination with isotope dilution improves uncertainty and accuracy of novel LA-ID-ICP-MS method.

Abstract. Many new geochronological applications of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) have been proposed in recent years. One the problems associated with this rapid growth is lack chemically and isotopically homogeneous matrix-matched primary standards to control elemental fractionation during LA-ICP-MS analysis. In U–Pb problem often addressed by utilisin...

Laser induced isotopic fractionation Previous studies of laser ablation (LA) MC-ICP-MS analysis of Cu metal and sulphides showed reduced Cu/Cu ratios compared to solution nebulisation MC-ICP-MS of the same samples [1]. The fractionation of about 30ε (parts per 10,000) was reproduced repeatedly and observed, to a smaller degree, for Ag and Sb also. This deviation, which was attributed largely to...