TY  - JOUR
A1  - Jochum, Klaus Peter
A1  - Garbe-Schönberg, Dieter
A1  - Veter, Marina
A1  - Stoll, Brigitte
A1  - Weis, Ulrike
A1  - Weber, Michael
A1  - Lugli, Federico
A1  - Jentzen, Anna
A1  - Schiebel, Ralf
A1  - Wassenburg, Jasper A.
A1  - Jacob, Dorrit E.
A1  - Haug, Gerald H.
T1  - Nano-Powdered Calcium Carbonate Reference Materials: Significant Progress for Microanalysis?
Y1  - 2019
VL  - 43
IS  - 4
SP  - 595
EP  - 609
JF  - Geostandards and Geoanalytical Research
DO  - 10.1111/ggr.12292
DO  - 10.23689/fidgeo-4730
N2  - Homogeneity, mass fractions of about forty trace elements and Sr isotope composition of Ca carbonate reference materials (RMs) between original and nano-powdered pellets are compared. Our results using nanosecond and femtosecond LA-(MC)-ICP-MS show that the nano-pellets of the RMs MACS-3NP, JCp-1NP and JCt-1NP are about a factor of 2–3 more homogeneous than the original samples MACS-3, JCp-1 and JCt-1, and are therefore much more suitable for microanalytical purposes. With the exception of Si, the mass fractions of the synthetic RM MACS-3 agree with its fine-grained analogue MACS-3NP. Very small, but significant, differences between original and nano-pellets are observed in the RMs JCp-1 and JCt-1 for some trace elements with very low contents, indicating the need for re-certification. Strontium mass fractions in the analysed RMs are high (1500–7000 mg kg−1), and their isotope compositions determined by LA-MC-ICP-MS in the original and the nano-pellets agree within uncertainty limits.
UR  - http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9076
ER  -