摘要
偏硼酸锂类熔剂，能够有效地分解硅酸盐岩石和太多数造岩矿物。样品分解后可以使用种种分析技术完成包括钾钠在内的元素定量分析，因此自C．O．英格梅尔斯(Ingamells)推荐偏硼酸锂作熔剂以来，已经在发射光谱和火焰光度法、原子吸收。
Fusion and extraction experiments were carried out on more than 40 different rocks by decomposition in graphite crucible with boron oxide-lithium carbonate as flux. Fusion of this type shows a similar degree of completeness of decomposition with that by anhydrous lithium borate but the fused material is easier to be extracted. After the melt is dissolved by hydrochloric acid, silicon is determined by gravimetric method following condensation by cetyl trimethyammonium bromide. The filtrate is used to determine K, Na, Ca, Mg, Mn, Fe, Al, Ti, P, etc. by atomic absorption, spec-trophotometric complexation titrimetric and other methods. Ferrous iron and water are analyzed separately. Satisfactory results are obtained in routine rock analysis by using This method.
出处
《地球化学》
CAS
1980年第3期282-288,共7页
Geochimica
