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金的定量分析有火法试金、湿法单体金法、分光光度法、原子吸收光谱法等.用于矿石中微量金的定量分析法都有很好的精确度,但要求熟练的分析技术,操作时间也较长.除此,还须使用较大量试样.电感耦合等离子体发射光谱分析法的特点是:(1)、由于使用高温等离子源,所以,激发源中的低温火焰和各种干扰较少;(2)、校正曲线的线性范围宽,使用于从微量成分到主要成分的范围较大的试样是可能的;(3)、可能进行多组分的同时测定;(4)、再现性很好等.我们根据操作简便的ICP法具有的这些特点,研究了金矿石、特别是只能得到少量试样的古代文化遗物中金的定量分析和有关这些试样中基质元素的干扰问题.
Quantitative analysis of gold fire test gold, wet monomer gold method, spectrophotometry, atomic absorption spectrometry, etc. The quantitative method for the determination of trace gold in ore has a very good accuracy, but requires skilled analysis Technology, longer operating time. In addition, the larger number of samples must be used. Inductively Coupled Plasma Atomic Emission Spectrometry is characterized by: (1) due to the use of a high temperature plasma source, the low temperature flame in the excitation source and Various disturbances are less; (2) the linear range of the calibration curve is wide, it is possible to use a large sample from the minor component to the major component; (3) it is possible to perform simultaneous determination of the plural components; 4), good reproducibility, etc. Based on these characteristics of the easy-to-use ICP method, we have studied the quantitative analysis of gold in ancient gold relics, in particular those that can only get a small amount of sample, Elements of interference problems.