微量锂的测定方法较多,有核子示踪法、中子活化法、火焰光度法、原子吸收法、荧光法、吸光光度法等。前四种方法因需要复杂的仪器,不适于一般实验室使用。荧光法选择性差,较难用于复杂物料。锂的显色反应的研究始于1948年,首次由 Trace determination of lithium are more, there are nuclear tracer method, neutron activation method, flame photometry, atomic absorption method, fluorescence method, absorption spectrophotometry. The first four methods are not suitable for general laboratory use due to the need for complex instruments. Fluorescence selectivity is poor, more difficult to use for complex materials. The study of the color reaction of lithium began in 1948, for the first time