a new method for determining phosphorus by spectrophotometry was developed, which uses ammonium ferrous sulfate and glucose as mixed reductant. the optimum conditions were determined.
用硫酸亚铁铵和葡萄糖作为混合还原剂,建立了用分光光度法测定磷的方法,确定了最佳测定条件。
manganese in manganese ore is determined with ammonium ferrous sulfate titration method of perchloric acid oxidation.