硫物相的分析研究  

Analysis and Research of Sulfur Phase

作　　者：霍成玉 胡兰基 马龙[1] HUO Cheng-yu;HU Lan-ji;MA Long(Qinghai Provincial Geological and Mineral Testing and Application Center,Xining Qinghai 810021,China)

机构地区：[1]青海省地质矿产测试应用中心,青海西宁810021

出　　处：《当代化工》2022年第3期748-751,共4页Contemporary Chemical Industry

基　　金：青海省重点研发与转化项目(项目编号:2019-SP-139)。

摘　　要：利用高频红外碳硫仪测定硫的总量,利用电感耦合等离子体光谱仪测定自然硫和硫酸盐硫,利用差减法计算出硫化物硫。此方法改变了传统意义上的利用容量法和重量法测定自然硫和硫酸盐硫。采用大型仪器分析硫的物相,最大的优点是干扰物少,而且方法简便,对于测定结果的稳定性和准确性有着极大的帮助。按此方法计算得出方法标准偏差分别为:总硫0.011%,自然硫0.001%,硫酸盐硫0.015%,硫化物硫0.016%;方法精密度RSD分别为:总硫0.30%,自然硫1.17%,硫酸盐硫0.48%,硫化物硫3.25%;方法准确度分别为:总硫100.8%,自然硫99.6%,硫酸盐硫97.1%,硫化物硫97.5%。The total amount of sulfur was determined by high-frequency infrared carbon sulphur meter, natural sulfur and sulfate sulfur were determined by inductively coupled plasma spectrometer, and sulfur sulfide was calculated by differential subtraction. This method changes the traditional method of using capacity and weight to determine natural sulfur and sulfur sulfate. The biggest advantage of using large-scale instruments to analyze sulfur phase is that there are fewer interferences and the method is simple, which is of great help to the stability and accuracy of the measurement results. According to this method, the standard deviation of the method was: 0.011% for total sulfur,0.001% for natural sulfur, 0.015% for sulfur sulfate, 0.016% for sulfur sulfide;Methods precision RSD were: 0.30% for total sulfur, 1.17% for natural sulfur, 0.48% for sulfur sulfate, 3.25% for sulfur sulphide;The accuracy of the methods was : 100.8% for total sulfur, 99.6% for natural sulfur, 97.1% for sulfur of sulfate and 97.5% for sulfur of sulphides.

关 键 词：高频红外碳硫仪 电感耦合等离子体光谱仪 自然硫 硫酸盐硫 硫化物硫 

分 类 号：TQ016.1[化学工程]