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碳酸岩样品中由于CaO的辐射背景深而影响了许多元素的测定。本法针对碳酸岩样品的组份,在缓冲剂中加入大量的SiO_2(石英粉)稀释样品,从而消除了CaO对测定Ag、Sn、B等的影响。 实验部分 一、CaO对谱线强度的影响 据资料介绍,样品中CaO的含量或CaO/SiO-2的比值和谱线强度的减弱有线性关系。在本体系中,CaO的影响如图所示。当样品与缓冲剂的混合物中CaO含量低于10％时,Ag、Sn和B的谱线强度无明显减弱,而当混合物中CaO含量超过10％时,Ag、Sn的谱线强度急剧减弱,且光谱背景逐
Carbonate samples have many elements affected by the deep background of CaO radiation. In this method, a large amount of SiO 2 (quartz powder) diluted sample is added to the components of carbonate samples to eliminate the influence of CaO on the determination of Ag, Sn, B and the like. Experimental part A CaO on the intensity of the line According to the introduction of information, the sample content of CaO or CaO / SiO-2 ratio and the weakening of the line intensity has a linear relationship. In this system, the influence of CaO is as shown in the figure. When the content of CaO in the mixture of sample and buffer was less than 10%, the intensity of Ag, Sn and B did not decrease obviously. When the content of CaO in the mixture exceeded 10%, the intensity of Ag and Sn sharply decreased, And the spectral background by