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有机肥料中磷和钾元素的测定采用NY525—2002标准,其中磷采用磷钼黄分光光度法测定、钾采用火焰光度计法测定[1]。该方法非常繁琐,不易操作,且测定周期长,精密度差,检出限高。电感耦合等离子发射光谱(ICP-OES)是近几年来应用广泛的高灵敏度的简便分析仪器之一,非常适用
Determination of phosphorus and potassium in organic fertilizer using standard NY525-2002, phosphorus phosphorus molybdenum yellow spectrophotometric determination, potassium flame photometry [1]. The method is very cumbersome, not easy to operate, and the measurement cycle is long, the precision is poor, the detection limit is high. Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-OES) is one of the most widely used high-sensitivity, easy-to-use analytical instruments in recent years.