H. Ulbrich

Alkaline rocks from continental Brazil

H. Ulbrich, Celso B. Gomes · Earth-Science Reviews · 1981 · 230 citations

Earth Science, Engineering, Nonmetallic Mineral Deposit +5

The Direct Determination of Rare Earth Elements in Basaltic and Related Rocks using ICP‐MS: Testing the Efficiency of Microwave Oven Sample Decomposition Procedures

Margareth Sugano Navarro, Sandra Andrade, H. Ulbrich et al. · Geostandards and Geoanalytical Research · 2008 · 172 citations · Full text

Rare Earth Mineral, Engineering, Trace Element Geochemistry +17

Iron(II) oxide determination in rocks and minerals

Sandra Andrade, Raphael Hypólito, H. Ulbrich et al. · Chemical Geology · 2002 · 71 citations

Inorganic Chemistry, Engineering, Geology +6

Late Proterozoic granitoid magmatism in the state of São Paulo, southeastern Brazil

Valdecir de Assis Janasi, H. Ulbrich · Precambrian Research · 1991 · 55 citations

Magmatic Process, Volcanology, Engineering +11

Adaptation of ICP–OES routine determination techniques for the analysis of rare earth elements by chromatographic separation in geologic materials: tests with reference materials and granitic rocks

Margareth Sugano Navarro, H. Ulbrich, Selma Maffei de Andrade et al. · Journal of Alloys and Compounds · 2002 · 47 citations

Rare Earth Mineral, Engineering, Geology +10