A diatomite loaded with 1-(2-pyridylazo)-2-naphthol(PAN)was obtained by treating a diatomite powder with HCl(1+1)and then mixed with PAN-acetone solution.

• 硅藻土粉末经盐酸(1+1)预处理后,与1-(2-吡啶偶氮)-2-萘酚(PAN)的丙酮溶液混合,形成了负载PAN的硅藻土。