ICP-AES法测定土壤中的钾、锌、钒和钴

Determination of Potassium,Zinc,Vanadium,and Cobalt in Soil by Inductively Coupled Plasma- Atomic Emission Spectrometry( ICP- AES)

采用盐酸-硝酸-氢氟酸-高氯酸全分解的方法消解,在选定的条件下以ICP-AES测定溶液中的K、Zn、V和Co含量,对国家标准物进行测定,方法精密度(RSD,n=16)为K 3.09%、Zn4.14%、V 3.76%、Co3.85%。该方法具有线性范围宽、干扰少、快速、简便等优点,用于实样分析,结果令人满意。

Hydrochloric acid,nitric acid,hydrofluoric acid,and perchloric acid were applied to digest heavy metals in soil sample.Inductively coupled plasma-atomic emission spectrometry （ICP-AES）method was employed to determine the contents of potassium,zinc,vanadium,and cobalt.The precision of this method to these four heavy metals was 3.09% for potassium,4.14% for zinc,3.76% for vanadium,and 3.85% for cobalt respectively.Generally,this method is simple and quick with wide linear range and few distractions.