Trace copper (II) in water can be preconcentrated using silica gel modified with 1-(2-pyridylazo)-2-naphthol (PAN) and b......

研究了用分子吸收光谱法测定硫化物。以镁空心阴极灯（ＨＣＬ）为辐射光源，测定了２０２．６ｎｍ处Ｈ２Ｓ的分子吸收。采用蠕动泵预富集和气动雾化预富集两种富集方......