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原子吸收分光光度法测定镱常采用乙炔-氧化亚氮火焰。本文报导当某些有机试剂与镱共存时(如,酒石酸钾钠,柠檬酸钠或者磺基水杨酸等)用空气-乙炔火焰原子吸收分光光度法测定镱的灵敏度大幅度提高。因此,就有可能测定岩石样品中的镱。本文拟定了分析程序,该法比较简单,快速,适于分析含镱0.001％以上的岩石样品。分析结果符合分析质量规范要求。标准曲线的绘制用含有酒石酸钾钠及磺基水杨酸的1、2、3、4微克/毫升镱标准溶液在选定条件下测定吸收值。绘制标准曲线。操作手续准确称取0.5～1克样品于刚玉坩埚中,加入5倍量的过氧化钠,搅匀后复盖一层过氧化
Determination of ytterbium by atomic absorption spectrophotometry often use acetylene - nitrous oxide flame. In this paper, the sensitivity of ytterbium with air-acetylene flame atomic absorption spectrometry has been greatly enhanced when certain organic reagents coexist with ytterbium (eg sodium potassium tartrate, sodium citrate or sulfosalicylic acid). Therefore, it is possible to determine ytterbium in a rock sample. In this paper, an analytical program is developed, which is simple and fast. It is suitable for the analysis of rock samples containing more than 0.001% ytterbium. Analysis results meet the quality requirements of the analysis. Standard Curve The absorbance values were determined at selected conditions using 1, 2, 3, 4 μg / ml ytterbium standard solution containing potassium sodium tartrate and sulfosalicylic acid. Draw a standard curve. Procedure Accurately weigh 0.5 to 1 gram sample in corundum crucible, add 5 times the amount of sodium peroxide, mix well and cover with a layer of peroxide