Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Tiexin Gu"'
Publikováno v:
Geostandards and Geoanalytical Research. 42:549-557
Publikováno v:
Geostandards and Geoanalytical Research. 39:221-232
The preparation and characterisation of three nickel ores and two nickel concentrate certified reference materials are described in this paper. The samples of nickel ore and nickel concentrate were collected from the Hongqiling nickel deposit in Jili
Autor:
Changyi Shi1, Tiexin Gu1 zhizhong9@yahoo.com.cn, Wei Bu1, Weidong Yan1, Mei Liu1, Mingcai Yan1
Publikováno v:
Geostandards & Geoanalytical Research. Aug2008, Vol. 32 Issue 3, p337-345. 9p. 6 Charts.
Autor:
Tiexin Gu1 zhizhong9@yahoo.com.cn, Changyi Shi, Wei Pu1, Weidong Yan1, Mei Liu1, Mingcai Yan1
Publikováno v:
Geostandards & Geoanalytical Research. May2007, Vol. 31 Issue 2, p125-132. 8p. 8 Charts.
Autor:
Yimin Wang, Xiaohong Wang, Yushu Gao, Xingtao Fan, S.I. Andreev, Wenjun Qu, Xuefa Shi, Tiexin Gu
Publikováno v:
Geostandards and Geoanalytical Research. 35:341-352
Two Co-rich seamount crust reference materials, MCPt-1 and MCPt-2, were prepared using ultra-fine particle size milling technique and characterised for the platinum-group elements (PGEs). The raw material for these two reference materials was collect
Publikováno v:
Geostandards and Geoanalytical Research. 32:337-345
The Institute of Geophysical and Geochemical Exploration in China recently prepared ten biogeochemical certified reference samples GSB1-10 (CRMs). The samples are primary agricultural products such as rice, wheat, corn, soybean, cabbage, spinach, tea
Publikováno v:
Geostandards and Geoanalytical Research. 31:125-132
Three new certified reference materials (CRM), certified for the platinum-group elements (PGE), GPt-8, GPt-9 and GPt-10 were developed based on the previous CRMs IGGE GPt-1 to GPt-7. The PGE concentration of GPt-8 is about 1 ng g-1. GPt-9 and GPt-10
Publikováno v:
Geostandards and Geoanalytical Research. 28:113-121
Although over recent years, sensitivity and precision of modern analytical techniques have continuously improved, traditional analytical specification for the particle size of samples has remained at 74 μm (-200 mesh). For this reason, the uncertain
Publikováno v:
Geostandards and Geoanalytical Research. 27:193-196
Sulfide mineral certified reference materials GSO 1-7, recently prepared by the Institute of Geophysical and Geochemical Exploration (IGGE), were analysed by twelve laboratories. Various reliable analytical methods based on different principles were
Publikováno v:
Geostandards and Geoanalytical Research. 27:197-202
Seven soil geochemical certified reference materials (CRMs) GSS 10-16 recently prepared by the Institute of Geophysical and Geochemical Exploration (IGGE), are mainly used for sample analysis in geochemical surveys of the overburden region in China.