Determination of High Field Strength Elements, Rb, Sr, Mo, Sb, Cs, Tl and Bi at ng g⁻¹ Levels in Geological Reference Materials by Magnetic Sector ICP-MS after HF/HClO₄ High Pressure Digestion     

Zongshou Yu  Philip Robinson  Ashley T. Townsend  Carsten Mnker  Anthony J. Crawford 《Geostandards and Geoanalytical Research》2000,24(1):39-50

Six low abundance rock reference materials (basalt BIR-1, dunite DTS-1, dolerite DNC-1, peridotite PCC-1, serpentine UB-N and basalt TAFAHI) have been analysed for high field strength elements (Zr, Nb, Hf, Ta, Th and U), Rb, Sr, Mo, Sb, Cs, Tl and Bi at ng g⁻¹ levels (in rock) by magnetic sector inductively coupled plasma-mass spectrometry after HF/HClO₄ high pressure decomposition. The adopted method uses only indium as an internal standard. Detection limits were found to be in the range of 0.08 to 16.2 pg ml⁻¹ in solution (equivalent to 0.08 to 16.2 ng g⁻¹ in rock). Our data for high field strength elements, Rb, Sr, Mo, Sb, Cs, Tl and Bi for the six selected low abundance geological reference materials show general agreement with previously published data. Our Ta values in DTS-1 and PCC-1 (1.3 and 0.5 ng g⁻¹) are lower than in previously published studies, providing smooth primitive mantle distribution patterns. Lower values were also found for Tl in BIR-1, DTS-1 and PCC-1 (2, 0.4 and 0.8 ng g⁻¹). Compared with quadrupole ICP-MS studies, the proposed magnetic sector ICP-MS method can generally provide better detection limits, so that the measurement of high field strength elements, Rb, Sr, Mo, Sb, Cs, Tl and Bi at ng g⁻¹ levels can be achieved without pre-concentration, ion exchange separation or other specialised techniques.  相似文献   

Crustal structure across the Pacific margin of Nicaragua:evidence for ophiolitic basement and a shallow mantle sliver   总被引：1，自引：0，他引：1  

C. H. E. Walther  E. R. Flueh  C. R. Ranero  R. von Huene  & W. Strauch 《Geophysical Journal International》2000,141(3):759-777

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Jahrestagung 1987 des Fachverbandes Wasserchemie der Chemischen Gesellschaft der DDR, 24.–27. November in Gera     

H.-J. Walther 《洁净——土壤、空气、水》1988,16(4):450-450

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Zur Wirkung von Singulettsauerstoff bei der Wasseraufbereitung     

H.-J. Walther  K. Bckelmann 《洁净——土壤、空气、水》1991,19(5):557-560

On the laboratory scale investigations are carried out into the action of singlet oxygen, which is generated in water by addition of sodium-hypochlorite and hydrogen-peroxide solution, on Elbe river water and model waters. DOC does not change; COD, however, decreases considerably. The advantages and drawbacks of the treatment are stated.  相似文献   

Thomas,St.: Beitrag zur Protein- und Biogaserzeugung aus hochbelasteten Abwässern. Gewässerschutz — Wasser — Abwasser 107, Aachen,Ges. z. Förder. d Siedlungswasserwirtsch. an d. RWTH Aachen e. V., 1981, 171 S., 8 Anl., 63 Abb., 29 Tab., DM 40,—, ISSN 0342–6068     

H.-J. Walther 《洁净——土壤、空气、水》1990,18(1):152-152

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Sedimentological and geochemical responses of Lake Żabińskie (north-eastern Poland) to erosion changes during the last millennium     

Alicja Bonk  Małgorzata Kinder  Dirk Enters  Martin Grosjean  Carsten Meyer-Jacob  Wojciech Tylmann 《Journal of Paleolimnology》2016,56(2-3):239-252

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Über die Sedimente der Flachsee im Lothringer Jura     

Dr. Walther Klüpfel 《International Journal of Earth Sciences》1916,7(3-4):97-109

Ohne Zusammenfassung  相似文献   

Über die Form andiner Krustenbewegungen und ihre Beziehungen zur Sedimentation     

Professor Walther Penck 《International Journal of Earth Sciences》1924,14(3):301-315

Ohne Zusammenfassung  相似文献   

Die alten Gebirge der Provinz Buenos Aires     

Walther Schiller 《International Journal of Earth Sciences》1933,24(3-4):220-221

Ohne Zusammenfassung  相似文献   

Das Faziesgesetz der vorquartären Vulkaneruptionen     

Walther Klüpfel 《International Journal of Earth Sciences》1933,24(1-2):28-56

Ohne Zusammenfassung  相似文献