A new kind of catalyst WOBr<sub>4</sub>,which can be used in the polymerization ofphenylacetylene(PhA),has been synthesized.The obtained polyphenyl(?)cetylene(PPhA)us
A new dye-staining method for protein assay is described.The reactionbetween TPPS<sub>4</sub> and protein molecule causes a shift in the absorption of TPPS<sub>