سیلیس کوارتز واحد خرد
سیلیس کوارتز واحد خرد; DivinorinJOC1984 - Sagewisdom... on a Perkin-Elmer 241 polarimeter using a quartz cell of 10-cm length and 1-mL ... was adsorbed on 5 g of silica gel and carefully poured on the preequilibrated ..... They were given isotropic temperature factors one …