CAJ | 학술논문

依据锡元素电离电位低、谱线多的特点，采用一米光栅发射光谱法测定锡元素时，可根据锡元素不同级别灵敏线对信号值的响应程度不同，建立浓度与信号的线性关系。通过实验研究，建立一次制样测定地质样品中锡元素的方法。该方法既兼顾了发射光谱法灵敏度高的优点，又将Sn的检测上限，由原来的0．01％提高到10％，提高了Sn的测量范围，避免了传统稀释方法所带来的误差，适合于不同含量地质样品中锡元素的测定。
의거석원소전리전위저、보선다적특점，채용일미광책발사광보법측정석원소시，가근거석원소불동급별령민선대신호치적향응정도불동，건립농도여신호적선성관계。통과실험연구，건립일차제양측정지질양품중석원소적방법。해방법기겸고료발사광보법령민도고적우점，우장Sn적검측상한，유원래적0．01％제고도10％，제고료Sn적측량범위，피면료전통희석방법소대래적오차，괄합우불동함량지질양품중석원소적측정。
Based on the characteristics of low ionization potential ,many spectral lines ,and the different degrees of sensi-tivity of different spectral lines in response to the signal value , the Linear relationship between concentration and signal was set up .Through experimental studies ,the paper established a sample preparation method for the determination of tin in geological samples .This method not only took into account the advantages of high sensitivity by optical emission spec-trometry,but the detection limit of Sn was also increased from 0.01%to 10%.The errors caused by conventional dilu-tion method were avoided ,thereby the quality of analysis and the efficiency were improved .The method was suitable for the determination of tin in geological samples with different content .