A novel cycloartane, named sphaerophysone A, 9, 19-cycloart-7β, 24β, 25-triol-1-en-3-one, was isolated from the ethanol extract of Sphaerophysa salsula DC. Th
A novel method for removing boron with ion exchange resin from residual brines tomanufacture boron-free magnesia is described. The concentration of boron in the
Both the unsupported and supported NiB amorphous alloy catalysts (NiB and NiB/TiO2)were prepared by the chemical reduction method. Their catalytic activities we
A new diterpenoid,15-O-acetylspiraminol(1),was isolated from the aerial parts of Spireae japonica L.f.var.ovalifolia.The structure was charaterized mainly based