With calcium chloride precipitant to eliminate the interference of PO43-, total nitrogen in compound fertilizer is determined by formol method.
用化钙作沉淀剂,消除磷酸根离子干扰,用甲醛法测定复合肥中总氮。
With calcium chloride precipitant to eliminate the interference of PO43-, total nitrogen in compound fertilizer is determined by formol method.
用化钙作沉淀剂,消除磷酸根离子干扰,用甲醛法测定复合肥中总氮。
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