Quantity of trace arsenic in grain and soil was determined by hydride nondispersive atomic fluorescence method.Optimum conditions of measurement were selected in the experiment including the pH of the medium, reductive agent, the concentration and flowing velocity of KBH4, rate of carrier gas and atomized temperature. The reference sample of rice C was determined and the linear relationship of the calibration curve was plotted, indicating that the method was highly precise. In the experiment of recovery rate, the method was quite satisfactory.Based on the determination of hundreds of samples, it is proved that atomic fluorescence method is rapid, sensitive and low in interference. It is very efficient on determination of trace arsenic in soils and grains, especially in grains.
展开▼
机译:An economic evaluation of soil bioengineering as a method for slope stability on abandoned mine land in Eastern Kentucky <中文篇名〉=肯塔基州东部废矿斜坡稳定性的土壤生物工程 经济评估
机译:a study of the atomic absorption determination of arsenic, bismuth, germanium, lead, antimony, selenium, tin and tellurium by utilising the hydride generation technique.