Some experimental techniques such as the dilution rate of flux and sample,preparation of sample with melting,the correction methods of the loss on ignition and the effects of enhancement and absorpt.

• 采用国家标准物质和以标准物质为基体添加纯试剂合成标样制作工作曲线;研究讨论了熔剂体系及样品的稀释比例、样品的熔融制备、烧失量和基体增强吸收效应的校正。