作　　者： (李灿）; (程华农）; (侯凤博）; (郑世清）;

机构地区： 青岛科技大学计算机与化工研究所

出　　处： 《青岛科技大学学报（自然科学版）》 2017年第S1期69-72,共4页

摘　　要： 对PDS脱硫液中多硫化物的测定进行了研究,通过紫外分光光度法测定脱硫液中多硫化物的含量。分析脱硫液中不同物质的光谱图,得到了多硫化物的最佳吸收波长是在285nm处,研究了多硫化钠的稳定性、pH值对标准曲线的影响及在多硫化物稀释过程中稀释液的pH值对测定的影响,得到了多硫化物测定的标准曲线,通过加标测量的方法,证明了测定方法的准确性。 The determination of polysulfide in PDS desulfurization solution was studied.The content of polysulfide in desulfurization liquid was determined by ultraviolet spectrophotometry.The optimum absorption wavelength of polysulfide was 285 nm by analysing the spectra of different substances in the desulfurization solution.The stability of polysulfide,the effect of pH on the standard curve and the effect of pH of diluent on the assaywere studied.The standard curve of polysulfide determination was obtained.The results show that the accuracy of the method by the spiked measurement.

关 键 词： 多硫化物 最佳吸收波长 标准曲线 脱硫液体系