Elemental vs. phase composition of breast calcifications

The Elemental Composition of Some Marine Phytoplankton

We analyzed the cellular content of C, N, P, S, K, Mg, Ca, Sr, Fe, Mn, Zn, Cu, Co, Cd, and Mo in 15 marine eukaryotic phytoplankton species in culture representing the major marine phyla. All the organisms were grown under identical culture conditions, in a medium designed to allow rapid growth while minimizing precipitation of iron hydroxide. The cellular concentrations of all metals, phosphor...

Elemental composition of the Martian crust.

The composition of Mars' crust records the planet's integrated geologic history and provides clues to its differentiation. Spacecraft and meteorite data now provide a global view of the chemistry of the igneous crust that can be used to assess this history. Surface rocks on Mars are dominantly tholeiitic basalts formed by extensive partial melting and are not highly weathered. Siliceous or calc...

Elemental composition determination based on MSn

MOTIVATION Identification of metabolites is essential for its use as biomarkers, for research in systems biology and for drug discovery. The first step before a structure can be elucidated is to determine its elemental composition. High-resolution mass spectrometry, which provides the exact mass, together with common constraint rules, for rejecting false proposed elemental compositions, cannot ...

Size resolved mass concentration and elemental composition

Size resolved mass concentration and elemental composition of atmospheric aerosols over the eastern Mediterranean area J. Smolik, V. Ždimal, J. Schwarz, M. Lazaridis, V. Havránek, K. Eleftheriadis, N. Mihalopoulos, C. Bryant, and I. Colbeck Institute of Chemical Process Fundamentals, ASCR, Prague, Czech Republic Nuclear Physics Institute AS CR, Prague, Czech Republic Technical University of Cre...

Localization, structure and atomar composition of calcifications in temporal arteries.