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众所周知,金在地壳中的平均含量很低,在岩石矿物中,主要以自然金状态存在。因此无论在从事地质研究,普查找矿和勘探施工中,人们难以用肉眼判断金在岩石矿物中的存在情况,由于金的分析周期长使工作很被动。针对这一情况,本文试验了金的快速鉴定法。 本法基于用泡沫塑料吸附金后,直接用TMK显色的斑点法,进行金的目视测定。还制备了一套模仿标准色阶,以利于长期使用,适合于野外地质人员现场应用。测定范围为0.1—5.0微克金。
It is well-known that the average content of gold in the crust is very low, mainly in the natural gold state in rock minerals. Therefore, it is difficult for people to judge the existence of gold in rock and mineral by eyes, whether in geology research, prospecting, prospecting and construction. Due to the long analysis cycle of gold, the work is very passive. In response to this situation, this paper tested the gold rapid identification method. This method is based on the use of foam plastic adsorption gold directly TMK color speckle method for gold visual determination. Also prepared a set of imitation standard color levels, in order to facilitate long-term use, suitable for field geologists on-site applications. The measurement range is 0.1-5.0 micrograms gold.