摘要
通过优化冶炼烟尘样品前处理条件,采用离子色谱法,建立了冶炼烟尘中氟、氯、溴和碘4种元素的测定方法。结果表明,在碱熔温度700℃、碱熔时间60 min条件下,样品中氟、氯、溴和碘含量的测定准确度较高。对冶炼烟尘中的氟、氯、溴和碘分别进行了3组加标回收实验和6次平行实验,氟、氯、溴和碘加标回收率为85%~105%,相对标准偏差均小于6%,表明该方法重复性较好。
After the optimization of the pretreatment conditions for offgas dust samples from smelting process,a method was established for determination of fluorine,chlorine,bromine and iodine in the offgas dust by using ion chromatography.The results show that the concentrations of fluorine,chlorine,bromine and iodine in the samples can be determined by alkaline fusion at 700 ℃ for 60 min,showing a high accuracy.Three groups of spike-and-recovery experiment and six parallel experiments were performed for the recovery of fluorine,chlorine,bromine and iodine from the offgas dust sample,showing the recovery rates of fluorine,chlorine,bromine and iodine from the spike-and-recovery experiments were within the range of 85%~105%,with the relative standard deviations all less than 6%,indicating that this method has good repeatability.
作者
张晓娟
魏伟
杨林
符招弟
ZHANG Xiao-juan;WEI Wei;YANG Lin;FU Zhao-di(Testing Technology Company of Changsha Research Institute of Mining and Metallurgy Co Ltd,Changsha 410012,Hunan,China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2022年第2期117-119,共3页
Mining and Metallurgical Engineering
关键词
冶炼烟尘
氟
氯
溴
碘
离子色谱法
化学分析
smelting offgas dust
fluorine
chlorine
bromine
iodine
ion chromatography
chemical analysis
作者简介
张晓娟(1987-),女,河南南阳人,中级工程师,硕士,主要从事矿石中元素分析和有机分析;通信作者:符招弟(1985-),女,湖南衡阳人,高级工程师,硕士,主要从事化学物相分析和有机分析。
