请问液相流动相用硫酸铵浓度一般多少 看了美国药典上测定硫糖铝用的流动相是132g/l的硫酸铵,也就是浓度1mol/l, 如下:Dissolve 132 g of ammonium sulfate in 900 mL of water, dilute with water to 1000 mL, and mix. Adjust with phosphoric acid to a pH of 3.5 ± 0.1, filter, and degas. Make adjustments if necessary