电感耦合等离子体发射光谱法同时测定无机复混肥料中的7种元素

Simultaneous Determination of Seven Elements in Inorganic Compound Fertilizer by Inductively Coupled Plasma Emission Spectrometry

本文建立了稀盐酸分解、电感耦合等离子体发射光谱法(ICP-OES)同时测定无机复混肥料样品中7种元素的分析方法。各元素检出限结果为:磷0.036μg/mL、钙0.104μg/mL、镁0.116μg/mL、钾0.097μg/mL、钠0.107μg/mL、铁0.115μg/mL、硫0.050μg/mL。该方法快速且操作简单,准确度、精密度均满足要求,适合推广运用于大批量无机复混肥料样品中磷、钙、镁、钾、钠、铁和硫元素的快速分析。

A method for the simultaneous determination of seven elements in inorganic compound fertilizer samples by dilute hydrochloric acid decomposition and inductively coupled plasma atomic emission spectrometry(ICP-OES) was established. The detection limit of each element is phosphorus 0.036 μg/mL,calcium 0.104 μg/mL,magnesium 0.116 μg/mL,potassium 0.097 μg/mL,sodium 0.107 μg/mL,iron 0.115 μg/mL,sulfur 0.050 μg/mL. The method is fast and simple,and the accuracy and precision meet the requirements.It is suitable for the rapid analysis of phosphorus,calcium,magnesium,potassium,sodium,iron and sulfur in a large number of inorganic compound fertilizer samples.