A novel method was established to determine pyrogallol by using potassium ferricyanide and Fe(Ⅲ)as a chromogenic re......

Eleven new-typed azo compounds were synthesized in good yields by dehydrogenating the corresponding aryl substituted sem......

高含量的锌精矿中锌的测定一般都用EDTA容量法,该方法结果稳定,矿石中的杂质含量对测定结果没有影响,但是用EDTA容量法过程繁琐,花......