The hydrolysis of the di-chlorides decreases for the alkaline earth elements with increasing of atomic mass. The Ca, Sr and Ba chlorides showed a vaporization pattern of di-chloride in both a pyrocoated and Ta-lined tube with increased simultaneous appearance of mono-chloride and atomic species ...
A mass-spectrographic study of the isotopic constitution of Sr, Ba, Bi, and Tl has been made. Although the sensitivity and resolving power of the apparatus were sufficient to detect extremely rare isotopes, no new ones were found. Relati... Nier,O Alfred - 《Physical Review》 被引量: 149...
TheApplicationofInductivelyCoupledPlasmaAtomicEmissionSpectrometryMass 系统标签: 中药微量元素发射光谱spectrometry形态speciation 第22 卷,第 6 期光谱学与光谱分析 Vol.22 , No.6 , pp1019-1024 2002 年 12 月 SpectroscopyandSpectralAnalysisDecember , !!! 2002 电感耦合等离子体原子发射光谱/质谱法在中药微量元素...
The residue mass of complex 2 after heating up to 501 ◦C was only 0.32%, demonstrating that complex 2 evaporates almost completely under atmospheric pressure. The DSC curve exhibited one sharp peak at 126 ◦C and one broad peak at 288 ◦C. The first event at 126 ◦C represented ...
The atomic mass of Mo and Pb is large, and the kinetic energy is transferred to the surface of the thin film when the AO hits the surface of the film with high speed. These energies are not enough to destroy the chemical bonds inside the film, but the long-term physical sputtering ...
Rh solution was then dropped into γ-Al2O3. After drying, the catalyst was calcined in air at 500 ◦C for 4 h, and finally reduced at 500 ◦C for 2 h in H2 environment. The mass percentage of Rh in both catalysts was 5%. Catalyst characterization: The as-synthesized catalysts ...