β Scribed by O. S. Anisimova; Yu. N. Sheinker; S. Ordzhonikidze; A. P. Pleshkova
No coin nor oath required. For personal study only.
D e a r S i r ,
SECONDARY ION MASS SPECFROMETRY OF DTSPIRO-
Dispirotripiperazinium d e r i v a t i v e s 1-3, the bisquaternary nitrogen b a s e s are compounds w i t h high antitumor a c t i v i t y .
Spirobromine ( 1 ) and prospidine (3) are rather e f f e c t i v e drugs
π SIMILAR VOLUMES
## Abstract Secondary ion mass spectra of fifteen sugar nucleotide sodium salts were investigated. In the negativeβion mode. deprotonated free acid molecules, desodiated sodium salts and some structurally significant fragment ion swere obtained. The linked scan at constant __B/E__ gave information
The purpose of our work is to develop Secondary Ion Mass Spectrometry for routine trace element analysis; this paper demonstrates one of several applications of this method in monitoring the liquid gallium chemical regeneration process. Two groups of gallium samples with similar concentrations of im
The vitreous surfaces of six samples of drawn sheet glass treated in several ways (fracture surface, polished, or immersed in acid solutions) were analysed by secondary-ion mass spectrometry (SIMS). It was shown that no changes in the samples take place under typical SIMS conditions. SIMS can reveal
Carbamate-linked oligodeoxynucleosides, in which the backbone consists of carbamate and N-methylcarbamate linkages, have been analyzed by negative ion liquid secondary ion mass spectrometry. Bidirectional sequencedetermining fragmentations are postulated to occur from a common radical anion intermed
Speciation analysis of inorganic solids, without dissolution of the sample, aims at specific molecular information. Two potentially useful microanalytical techniques emerge, namely, laser microprobe mass spectrometry (LMMS) and static secondary ion mass spectrometry (S-SIMS). This paper focuses on t