β Scribed by Tadashi Ii; Satoshi Okuda; Takashi Hirano; Kazuo Tsujimoto; Mamoru Ohashi
No coin nor oath required. For personal study only.
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 on the characteristics of the sugar, nucleosides and base moieties in the sugar nucleotides.
π SIMILAR VOLUMES
## OMS Letters D e a r S i r , SECONDARY ION MASS SPECFROMETRY OF DTSPIRO- ## TRIPIPERAZIIVIUM (XIYIPOUNDS 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 ra
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