This article discusses the development of compositions new, effective, water-soluble fixatives-reagents based on local raw materials and industrial waste. A technology has been developed for obtaining using new types complex additives-fixers hydrolyzed polyacrylonitrile polyelectrolyte, which can be recommended implementation when fixing saline soils sands Aral region. Chemical reagents have se...

Four 25-nt long oligonucleotides containing dA and dT (D1, D2, D3, and D4) which are capable of forming parallel-stranded (ps) or antiparallel-stranded (aps) duplexes have been synthesized [Rippe, K., Ramsing, N. B., & Jovin, T. M. (1989) Biochemistry 28, 9536-9541]. In the present study, the OsO4-pyridine complex (Os,py), diethyl pyrocarbonate (DEPC), KMnO4, and the 1,10-phenanthroline-cuprous...

The ion-molecule reactions of ions from acetone, dimethyl ether, 2-methoxyethanol, and vinyl methyl ether with vincamine were investigated. Reactions with dimethyl ether result in [M+13](+) and [M+45](+) products, reactions with 2-methoxyethanol produce [M+13](+) and [M+89](+) ions, and reactions with acetone or vinyl methyl ether ions generate predominantly [M+43](+) ions. Collision-activated ...