Production of Bauxite Certified Reference Material (BARC-B1201) for Nine Property Values (Al2O3, Fe2O3, SiO2, TiO2, V2O5, MnO,Cr2O3, MgO and LOI) Traceable to SI Units     

Ankam Durga Prasad  Lori Rastogi  Vinod Kumar Verma  Vasudevan Krishna Kumari  Sudhakar Yadlapalli  Kulamani Dash 《Geostandards and Geoanalytical Research》2023,47(3):629-636

The National Centre for Compositional Characterisation of Materials (NCCCM) / Bhabha Atomic Research Centre (BARC) and National Aluminium Company Limited (NALCO), India have produced an Indian origin bauxite certified reference material (CRM), referred to as BARC-B1201, certified for major (Al₂O₃, Fe₂O₃, SiO₂, TiO₂, loss on ignition - LOI) and trace contents (V₂O₅, MnO, Cr₂O₃, MgO). Characterisation was undertaken by strict adherence to ISO Guides. A method previously developed and validated in our laboratory, using single step bauxite dissolution and subsequent quantitation (of Al₂O₃, Fe₂O₃, SiO₂, TiO₂, V₂O_5, MnO, Cr₂O₃ and MgO) by ICP-AES (SSBD ICP-AES) was used for homogeneity studies and an inter-laboratory comparison exercise (ILCE) of the candidate CRM. LOI was determined by thermo-gravimetric analysis. Property values were assigned after an ILCE with participation from seventeen reputed government and private sector laboratories in India. The CRM was certified for nine property values: Al₂O₃, Fe₂O₃, SiO₂, TiO₂, V₂O_5, MnO, Cr₂O₃, MgO and LOI, which are traceable to SI units.  相似文献   

ICP-AES快速测定钛铁矿精粉中钛、铁、钒的含量          下载免费PDF全文

杨学字 《山东国土资源》2014,30(7):74-75

钛铁矿精粉中二氧化钛的含量一般在40%~50%,全铁含量一般在30%~45%,二者在钛铁矿精粉分析过程中对其他组分测定造成干扰,同时大量钛的水解会造成分析工作的失败,通过氢氟酸—王水—硫酸分解样品,在8%的硫酸和10%的盐酸介质中,用ICP-AES以国家标准物质作标准曲线,快速测定钛铁矿精粉中钛、铁、钒的含量,该法简便快速,选择性好,准确度高。  相似文献   

ICP-AES法同时测定红土型镍矿中镍、钴、铁、镁研究   总被引：1，自引：0，他引：1  

张丽微  徐玉蓉  张微  李伟平 《云南地质》2010,29(3):346-350

通过选择分析谱线、处理样品方法和消除干扰因素等实验,建立ICP-AES法同时测定红土型镍矿中镍、钴、铁、镁4种元素的方法,解决利用常规化学法测定步骤繁琐,分析周期长,工作量大等问题,方法回收率为99.2%-105%,精密度（RSDn=10）为0.42%-3.89%。  相似文献   

ICP-AES光谱法测定化探样品中多元素     

欧阳义华  唐毅  韦克桥  李伟平  朱松 《云南地质》2010,29(2):206-209,205

ICP-AES直读光谱仪具有多元素同时测定、线性范围宽、分析速度快等优点。方法简便、快速,各元素间没有明显干扰。本方法用HCl和HNO3分解试样,加入HF和HClO4冒烟除去SiO2的干扰后,用国家一级标准物质GBWO7310、GBWO7312、NGS-01、NGS-02等对方法进行验证,结果满意。  相似文献   

电感耦合等离子体发射光谱法测定海水中微量钡   总被引：2，自引：0，他引：2  

卢思桥  何超君  刘敏 《吉林地质》2010,29(1):142-143

研究了用ICP-AES测定海水中微量钡的方法,选取了最佳工作条件,检出限为0.003mg·L-1,RSD为0.64%～0.84%,回收率在98.2%～104%之间。该法简便、快速、准确,结果令人满意。  相似文献   

ICP-AES测定石煤中钒和钼   总被引：1，自引：0，他引：1  

周万峰 《贵州地质》2010,27(3):240-240,184

研究了用ICP-AES测定石煤中钒和钼的方法,确定了最佳测定条件,通过实际样品检测,与化学法测定吻合,结果满意。  相似文献   

阴离子树脂-活性炭分离富集等离子体发射光谱法测定富钴锰结壳中的痕量金银铂钯   总被引：10，自引：1，他引：10  

李展强张汉萍  张学华李其英 李锡坤 《岩矿测试》2005,24(2):141-144

采用717阴离子树脂活性炭联合交换分离富集技术,电感耦合等离子体发射光谱法同时测定富钴锰结壳中痕量金、银、铂、钯。方法检出限四元素分别为:Au1. 3、Ag0. 4、Pd0. 6、Pt4. 8ng/g。样品加标回收率在89. 0% ~110. 3%,相对标准偏差3. 5% ~7. 8% (n=4)。方法已用于富钴锰结壳中痕量金银铂钯的测定。  相似文献   

Trace Element Determination by ICP-AES and ICP-MS: Developments and Applications Reported During 2004 and 2005     

Kathryn L. Linge 《Geostandards and Geoanalytical Research》2006,30(3):157-174

This review describes significant developments in trace element determination using inductively coupled plasma-atomic emission spectrometry (ICP-AES) and inductively coupled plasma-mass spectrometry (ICP-MS) that were reported in 2004 and 2005. It focuses on the application of ICP techniques to geological and environmental samples; fundamental studies in ICP-MS and ICP-AES instrumentation are not included. The literature reviewed indicated that the majority of new publications concerned advances in ICP-MS analysis rather than ICP-AES. However, ICP-AES developments are still being published, particularly in the areas of sample preconcentration and sample introduction. The trend in increasing publication of developments in hyphenated speciation techniques looks set to persist as knowledge of elemental speciation becomes critical for many environmental studies. Collision or reactions cells were the most reported technique for spectral interference removal in ICP-MS, probably reflecting the growing adoption of cell instruments in laboratories during the last few years.  相似文献   

Determination of Total Sulfur in Thirty One Geochemical Reference Materials Using an Inductively Coupled Plasma-Atomic Emission Spectrometer Fitted with a Semiconductor Photodiode Detector   总被引：2，自引：0，他引：2  

Takashi Okai  Shigeru Terashima  Noboru Imai 《Geostandards and Geoanalytical Research》2001,25(1):133-136

The total sulfur contents of thirty one geochemical reference materials were determined using an inductively coupled plasma-atomic emission spectrometer fitted with a semiconductor photodiode detector. Most samples were decomposed using an HF-aqua regia digestion. However, a few were incompletely decomposed by simple acid digestion, and these were decomposed by a fusion method. The agreement between the analytical results from this work and published data is generally good.  相似文献   

ESR and ICP analyses of the DPRI 500 m drill core samples penetrating through the Nojima Fault, Japan     

Tatsuro Fukuchi  Noboru Imai 《Island Arc》2001,10(3-4):465-478

  相似文献