全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
中外文文献  中文文献  外文文献
作者:Jefferson F. D. F. Araujo , Andre L. A. Reis , Vanderlei C. Oliveira ...
来源:[J].Sensors(IF 1.953), 2019, Vol.19 (7)DOAJ
摘要:We improved a magnetic scanning microscope for measuring the magnetic properties of minerals in thin sections of geological samples at submillimeter scales. The microscope is comprised of a 200 µm diameter Hall sensor that is located at a distance of 142 µm from the sample...
作者:YongSheng Liu , ZhaoChu Hu , Ming Li ...
来源:[J].Chinese Science Bulletin(IF 1.319), 2013, Vol.58 (32), pp.3863-3878Springer
摘要:... This article reviews the application of LA-ICP-MS in the elemental analysis of solid geological samples. Although LA-ICP-MS has been widely used in the spatial resolution analysis of element compositions and rapid bulk analysis of whole-rock and soil samples, the analysis acc...
作者:N. PETROVIC , D. BUDJELAN , S. COKIC ...
来源:[J].Journal of the Serbian Chemical Society(IF 0.912), 2001, Vol.66 (1), pp.45DOAJ
摘要:A method has been elaborated for the determination of the content of gold and silver in geological samples by atomic absorption spectrophotometry (AAS) in combination with the fire assay method. The weight of sample used for analysis was 10 g. Sulphur present as sulphide, wh...
作者:B. NESIC , S. COKIC , D. BUDJELAN ...
来源:[J].Journal of the Serbian Chemical Society(IF 0.912), 2001, Vol.66 (1), pp.45-52DOAJ
摘要:A method has been elaborated for the determination of the content of gold and silver in geological samples by atomic absorption spectrophotometry (AAS) in combination with the fire assay method. The weight of sample used for analysis was 10 g. Sulphur present as sulphide, wh...
作者:Alice Bejjani , Radwan Sidaoui , Mohamad Roumié ...
来源:[J].Journal of Radioanalytical and Nuclear Chemistry(IF 1.467), 2017, Vol.314 (3), pp.1885-1895Springer
摘要:This work presents a method for simultaneous proton induced gamma-ray emission analysis of fluorine, lithium, and sodium in “as received” geological reference materials. 1.7, 2.4 and 3.0 MeV proton energies were chosen for this study. The choice of the most appropriate inc...
作者:Wen Zhang , Zhaochu Hu
来源:[J].Spectrochimica Acta Part B: Atomic Spectroscopy(IF 3.141), 2019, Vol.160Elsevier
摘要:Abstract(#br)Knowledge of the elemental compositions and isotopic ratios of geological samples is a prerequisite for geochemical research. For whole-rock elemental composition and isotopic analyses, sample digestion is a crucial step and often the limiting factor for achieving re...
作者:S.M. Simabuco , V.F. Nascimento Filho
来源:[J].Scientia Agricola(IF 0.796), 1994, Vol.51 (2), pp.197-206DOAJ
摘要:Three certified samples of different matrices (Soil-5, SL-1/IAEA and SARM-4/SABS) were quantitatively analysed by energy dispersive X-ray fluorescence with radioisotopic excitation. The observed errors were about 10-20% for the majority of the elements and less than 10% for Fe ...
作者:Aleksander Ganeev , Anna Titova , Boris Korotetski ...
来源:[J].Analytical Letters(IF 0.965), 2019, Vol.52 (4), pp.671-684Taylor & Francis
摘要:Abstract(#br)A method has been developed for the determination of 24 elements (As, B, Ce, Co, Dy, Fe, K, La, Lu, Mg, Mn, Na, Nb, Nd, P, Pr, Rb, S, Sb, Si, Sm, Th, Ti, and U) in ore samples by pulsed direct current glow discharge time-of-flight mass spectrometry (PGD-TOF-MS). Sample...
作者:Xiaoxiao Huang , Yali Sun , Yahui Yue ...
来源:[J].Analytical Letters(IF 0.965), 2018, Vol.51 (8), pp.1122-1146Taylor & Francis
摘要:ABSTRACT(#br)A method was developed to determine rhenium contents in geological samples using multicollector–inductively coupled plasma-mass spectrometry (MC–ICP-MS) and extraction with an ion-exchange resin. Samples were digested in Carius tubes and osmium was converted...
作者:Tzu-Hao Wang , Chen-Feng You , Chuan-Hsiung Chung ...
来源:[J].Microchemical Journal(IF 2.879), 2020, Vol.152Elsevier
摘要:Abstract(#br)Two new macro-sublimation methods allowing processing of larger sample volumes with lower concentration requirements in solution are developed and systematically assessed. Development of these methods involved the design of two new pieces of lab apparatus; 15-mL Sa...

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×