4 research outputs found
“KB Türkiye Alkali Volkanik Alanında Manto Ksenolitlerinin Os İzotop ve Yüksekçe Siderofil Element (HSE) Jeokimyasal Karakteristikleri
Trakya Havzasında (KB Türkiye) Yer Alan Alkali Bazaltlar İçerisindeki Manto Ksenolitlerinin Petrolojisi, Jeokimyası ve Os İzotop ve Yüksekçe Siderofil Element (HSE) Özellikleri
Accurate whole-rock geochemistry analysis by combined ICP-OES and LA-ICP-MS instruments
ICP-OES and LA-ICP-MS instruments routinely used to assess the geochemical properties of the various natural and synthetic materials. In this contribution, the analytical routines and method development procedures of the ICP-OES and LA-ICP-MS facilities installed at the Istanbul University-Cerrahpasa Geological Engineering Department, Geochronology and Geochemistry Laboratory have been evaluated using well-known international rock standards. Sample preparation techniques, method development, experimental setup and measurement conditions for the both ICP-OES and LA-ICP-MS instruments were discussed and specific analyze results of NIST SRM 614, BCR-2, AGV-2, BCR-2G and AGV-2G were evaluated. Flux-free USGS glass standards were produced by in-house techniques and flux-bearing glasses were produced by fusion of sample with the mixture of ultra-pure lithium-tetraborate, lithium metaborate and lithiumbromide were evaluated and compared with the well-known reference values in the literature. Relative standard deviation (RSD) values for the major oxide measurements for standards given range of 0.0 wt. % to 1.5 wt. %. RSD values for the trace and rare-earth-elements values were mainly lower than 10 wt. %. The results confirm that the both flux-bearing and flux-free glasses reasonably match with the worldwide inter-laboratory values for international standards samples. The combination of these two instruments can be used to conduct geochemistry of various solid earth materials.ISSN:0026-456