【摘要】 研究了杂铜中贵金属分析样品加工粒度与样品代表性的关系,及磨样时间对样品氧化的影响.结果表明,样品在磨样机内研磨不超过10min不会影响金、钯的含量,粒度为95%-1.6mm的样品具有良好的均匀性和代表性.采用本法制取的样品,其金、钯分析结果的相对标准偏差小于2%.更多还原

【Abstract】 The influence of sizes of samples on analysis of gold in miscellaneous copper as well as the effect of the grinding time on oxidation have been studied.The results show that there is no influence on content of gold and palladium when the sample is grinding without exceeding 10min in sample grinder.The sample with particle size of 95%-1.6mm is characterized by a good uniformity and representativeness.The relative standard deviation for analysis of gold and palladium with the method of this paper is less than 2%.更多还原