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本法通过大量的实验精选出较理想的缓冲剂,基本上消除了组成、结构的影响,因此不仅适用多种类型的铁矿而且在一定的测定范围内也适用于铁锰矿和锰矿中钴、镍、钒、钛的测定。同时提高了测定的准确度与精密度。 一、条件试验 1.缓冲剂的选择:通过七种缓冲剂以各组分的不同比例进行实验,结果证明以碳粉:二氧化硅:硝酸钾=70:15:15为最佳,不仅弧焰稳定而且灵敏度高。蒸发曲线於曝光30秒后趋于平稳。 2.分析线对与测定范围:由于钯与待测的四元素激发电位和电离电位较接近,而且钯与待测元素的分析线波长又靠近,由于缓
This Law through a large number of experiments selected an ideal buffer, basically eliminating the composition and structure of the impact, it is not only applicable to many types of iron ore and within a certain range of measurement also applies to bismuth and manganese ore cobalt , Nickel, vanadium, titanium determination. At the same time improve the accuracy and precision of the determination. First, the conditions of the test 1. Buffer selection: Seven buffers through different components of the experiment, the results show that the best: toner: silicon dioxide: potassium nitrate = 70:15:15 best, not only arc Flame stability and high sensitivity. The evaporation curve tends to be steady after 30 seconds of exposure. 2. Analysis of the line and the determination of range: As the palladium and the four elements to be measured excitation potential and ionization potential is closer, and the analysis of palladium and the analyte line wavelength is close, due to slow