In order to reduce the potential drift due to the difference of total ion strength on both sides of the electrode, the internal electrlyte consists of a solution with 0.01 M NH_4Cl and 1 M Na_2SO_4. A determination takes 3-5 min.

• 氨电极内电解质溶液由0.；01M氯化铵和1M硫酸钠溶液组成；以减少电极内外溶液离子强度差别所引起的电位飘移。 氮的适用分析范围为5×10~(-3)至略小于1%25。