摘要
对X射线荧光光谱法进行了改进,以使其能够同时测定分析水中的多种金属(Fe,Mn,Cu,Zn和Pb).用二乙基二硫代甲酸钠(DDTC)和1-(2-吡啶偶氮)-2-茶酚(PAN)作为沉淀剂,待测元素以薄膜沉淀的形式均匀地分布在一个面积较大的由低原子序数组成的基体上,可以定量地从水中回收痕量金属.分析的准确度和精确度可大大提高,且在一张滤纸圆片上可同时测定多种痕量金属元素.
This paper presents a method for simultaneously determining trace metals (Fe, Mn. Cu. Zn. Pb) in water. DDTC and PAN is taken as precipitant. The trace metal is precipiated in form of film on a filter paper composed of light element, and can be quantitatively restored from water. This method improves considerably the analysis precision and accuracy. Especialy, several trace metals can be determined simultaneously on one filter paper.
出处
《石油大学学报（自然科学版）》
CSCD
1992年第4期91-95,共5页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
金属
痕量分析
X射线
荧光光谱
Trace metal: Trace element: X-ray fluorescence spectrometry: Element analysis
