The phase equilibriua in the Ni-Re-Hf ternary system at 1173K were investigated by means of diffusion triple technique and electron microprobe analysis(EMPA). T
Paclitaxel in southern yew tree was quantitatively determined by high performance liquid chromatography(HPLC) with ODS-C18 column. A mixture of CH3OH-H2O-CH3COO