高频燃烧-红外吸收法测定铬矿中高硫含量  

DETERMINATION OF HIGH SULFUR IN CHROMIUM ORES BY HIGH FREQUENCY COMBUSTION IR-ABSORPTION SPETROMETRIC METHOD

作　　者：王恒[1] 夏新媛[1] 乔柱[1] 姜郁[1] 秦立俊[1] 赵秀荣[1] 刘亚军[1] 薛峰[1] 施顺兴 

机构地区：[1]连云港出入境检验检疫局,连云港中国222042 [2]钢研纳克检测技术有限公司,北京中国100081

出　　处：《铁合金》2016年第3期39-42,共4页Ferro-alloys

摘　　要：采用高频燃烧-红外吸收法研究了铬矿中高硫含量的测定方法,讨论了助熔剂的选择、称样量的选择、校准工作曲线的建立等因素,并通过铬矿标准物质检测和加标回收测试等方法对方法的准确度进行验证,以及通过两个含量水平的高硫样品检测对方法的精密度进行验证。该方法简单快速,准确度好,精密度高,测定范围为0.033%~1.85%,可以满足铬矿石中高硫含量的检测需求。The paper established a detection method of high sulfur in chromium ores using High Frequency Combustion IR-Absorption Spetrometric instrument. It discussed the selection of flux agent, the selection of sample weight and the establishment of the calibration curve, also used the standard substance and the standard addition recovery to certify the accuracy of the method, and tested two samples of different high sulphur content to validate the precision of the method.This method, simple and fast, shows good accuracy and high precision, with the measure scope of 0.033%~1.85%. It can satisfy the detection of high sulfur content in chrome ore.

关 键 词：高频燃烧-红外吸收法 铬矿 高硫含量 

分 类 号：O657.33[理学—分析化学] P575[理学—化学]