Abstract：0.1 g of sample was added into crucible. The crucible temperature was set at 850 °C. The calibration curve was prepared using certified reference materials of pyrite and sulfur concentrate. The determination method of effective sulfur in pyrite and sulfur concentrate by vertical resistance furnace combustion-infrared absorption method was established. The experimental results showed that the linear correlation coefficient of calibration curve was 0.999 8. The detection limit was 0.000 3%. The content of effective sulfur in pyrite and sulfur concentrate was determined according to the experimental method. The relative standard deviations (RSD, n=11) were less than 1%. Meanwhile, the recovery test was conducted by adding ZBK327 and ZBK325 sulfur concentrate CRMs into sample. The found recoveries were between 95% and 105%.
黄元.燃烧碘量法测定硫精矿中的有效硫[J].现代矿业,2010,6(6):109-110.HUANG Yuan.Determination results of available sulfur in sulphur concentrate by combustion iodine quantity method[J].Modern Mining,2010,6(6):109-110.
郑大中.硫铁矿中有效硫测定的探讨[J].地质实验室,1990,6(2):74-78.ZHENG Da-zhong.Discuss of effective sulfur determination in pyrite[J].Geological Laboratory,1990,6(2):74-78.
[4]
丁信明.燃烧中和法测定硫铁矿和硫精矿中有效硫含量不确定度的评定[J].广东化工,2009,36(1):87-90.DING Xin-ming.Evaluation of the uncertainty of determination of effective sulfur content in pyritesand concentrate by combustion neutralization method[J].Guangdong Chemical Industry,2009,36(1):87-90.
[5]
张芳,孟祥升,张东生.管式炉燃烧-红外吸收法测定煤焦油中硫含量[J].冶金分析,2011,31(6):48-50.ZHANG Fang,MENG Xiang-sheng,ZHANG Dong-sheng.Determination of sulfur in coal tar by tube furnace combustion-infrared absorption method[J].Metallurgical Analysis,2011,31(6):48-50.
庄艾春,肖红新.红外碳硫仪测定矿石中高含量硫的探讨[J].岩矿测试,2009,28(1):79-80.ZHUANG Ai-chun,XIAO Hong-xin.Determination of high-content sulfur in ores by infrared carbon-sulfur analyzer[J].Rock and Mineral Analysis,2009,28(1):79-80.
[8]
魏红兵,王虹,李异.管式电阻炉加热红外吸收法测定红土镍矿中硫[J].冶金分析,2008,28(11):65-67.WEI Hong-bing,WANG Hong,LI Yi.Determination of sulfur in laterite-nickel ore by infrared absorption method with tube resistance furnace heating[J].Metallurgical Analysis,2008,28(11):65-67.
[9]
林振兴,应晓浒,陈少鸿.高温燃烧红外快速测定铜精矿中的硫[J].有色金属,2004,56(1):108-109.LIN Zhen-xing,YING Xiao-hu,CHEN Shao-hong.Rapid determination of sulfur in copper concentrates by ir-absorption spectrometry[J].Nonferrous Metals,2004,56(1):108-109.
[10]
冉敬,杜谷,杨乐山,等.关于检出限的定义及分类的探讨[J].岩矿测试(Rock and Mineral Analysis),2008,27(2):155-157.
[11]
任成忠,毛丽芬.加标回收实验的实施及回收率计算的研究[J].工业安全与环保,2006,32(2):9-11.REN Cheng-zhong,MAO Li-fen.Study on the practice of standard recovery test and calculation of recovery rate[J].Industrial Safety and Environmental Protection,2006,32(2):9-11.
[12]
伍云卿,涂杰锋,范超,等.加标回收实验方案探讨[J].福建分析测试,2010,19(3):67-71.WU Yun-qing,TU Jie-feng,FAN Chao,et al.Study on the scheme of spike recovery test[J].Fujian Analysis &Testing,2010,19(3):67-71.
