Wiley
0150-5505
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Các bài báo tiêu biểu
THREE NATURAL ZIRCON STANDARDS FOR U‐TH‐PB, LU‐HF, TRACE ELEMENT AND REE ANALYSESWe report here the results of a study to develop natural zircon geochemical standards for calibrating the U‐(Th)‐Pb geochronometer and Hf isotopic analyses. Additional data were also collected for the major, minor and trace element contents of the three selected sample sets. A total of five large zircon grains (masses between 0.5 and 238 g) were selected for this study, representing three ... ... hiện toàn bộ
Tập 19 Số 1 - Trang 1-23 - 1995
A Compilation of New and Published Major and Trace Element Data for NIST SRM 610 and NIST SRM 612 Glass Reference MaterialsMicroanalytical trace element techniques (such as ion probe or laser ablation ICP‐MS) are hampered by a lack of well characterized, homogeneous standards. Two silicate glass reference materials produced by National Institute of Standards and Technology (NIST), NIST SRM 610 and NIST SRM 612, have been shown to be homogeneous and are spiked with up to sixty one trace elements at nominal conc... ... hiện toàn bộ
Tập 21 Số 1 - Trang 115-144 - 1997
1994 REPORT ON ZINNWALDITE ZW‐C ANALYSED BY NINETY‐TWO GIT‐IWG MEMBER‐LABORATORIESWithin a short period of one year (November 1992‐ October 1993), ninety‐two IWG‐Member laboratories have been able to characterize the chemical composition of a candidate reference sample, Zinnwaldite ZW‐C, a Li‐mica, reputed difficult to analyse because of its high contents of F and rare alkali elements and of the presence of refractory minerals. Thanks to the help of 163 analysts from th... ... hiện toàn bộ
Tập 18 Số 1 - Trang 1-42 - 1994
1989 COMPILATION OF WORKING VALUES AND SAMPLE DESCRIPTION FOR 272 GEOSTANDARDSIn this special issue, working values are reported for 272 international geostandards along with sample description. For many geostandards, the number of compiled data were not adequate enough for assigning working values. Users of geostandards are solicited to contribute more and more data particularly on trace elements. Think Geostan is a slogan that we wish to launch to set this problem... ... hiện toàn bộ
Tập 13 Số s1 - Trang 1-113 - 1989
Phân Tích Định Lượng Đối Tượng Vi Lượng Trong Mẫu Địa Chất Sử Dụng Phương Pháp Tiêm Dòng Và Nhúng Tầng Áp Suất Thấp Kết Hợp Với ICP-MS: Nghiên Cứu Về Các Vật Liệu Tham Chiếu Địa Hóa BR, DR-N, UB-N, AN-G Và GH Dịch bởi AI Chúng tôi mô tả các quy trình phân tích cho việc xác định các nguyên tố vi lượng được phát triển tại CNRS Service d'Analyse des Roches et des Minéraux (SARM) và báo cáo kết quả thu được cho năm vật liệu tham chiếu địa hóa: bazan BR, điôrit DR‐N, serpentinit UB‐N, anorthosit AN‐G và granit GH. Kết quả cho các nguyên tố đất hiếm, U và Th cũng được báo cáo cho các vật liệu tham chiếu khác bao... ... hiện toàn bộ
Tập 25 Số 2-3 - Trang 187-198 - 2001
Determination of Forty Two Major and Trace Elements in USGS and NIST SRM Glasses by Laser Ablation‐Inductively Coupled Plasma‐Mass SpectrometryForty two major (Na, Mg, Ti and Mn) and trace elements covering the mass range from Li to U in three USGS basalt glass reference materials BCR‐2G, BHVO‐2G and BIR‐1G were determined using laser ablation‐inductively coupled plasma‐mass spectrometry. Calibration was performed using NIST SRM 610 in conjunction with internal standardisation using Ca. Determinations were also made on NIST SRM 6... ... hiện toàn bộ
Tập 26 Số 2 - Trang 181-196 - 2002
Chemical Characterisation of the USGS Reference Glasses GSA-1G, GSC-1G, GSD-1G, GSE-1G, BCR-2G, BHVO-2G and BIR-1G Using EPMA, ID-TIMS, ID-ICP-MS and LA-ICP-MS
Tập 29 Số 3 - Trang 285-302 - 2005
SIMULTANEOUS DETERMINATION OF THIRTY‐SEVEN TRACE ELEMENTS IN TWENTY‐EIGHT INTERNATIONAL ROCK STANDARDS BY ICP‐MSThirty‐seven trace elements, including rare‐earth elements, have been determined by ICP‐MS in twenty‐eight international rock standards using routine sample preparation techniques. Samples were decomposed by either pressurized HF‐HCIO4 ‐aqua regia attack, or by lithium borate fusion. Generally, the ICP‐MS data for geological rock standards presented here agree well with... ... hiện toàn bộ
Tập 17 Số 1 - Trang 81-97 - 1993
1982 Compilation of Elemental Concentrations in Eleven United States Geological Survey Rock StandardsElemental composition data on eight older (AGV‐1, BCR‐1, DTS‐1, G‐1, G‐2, GSP‐1, PCC‐1 and W‐1) and three newer (BIR‐1, DNC‐1 and W‐2) USGS rock standards have been collected from institutional reports and journal articles from 1972–1981. This collection was combined with data from previous compilations and “consensus values” for up to 79 elements determined by comparing overall means, med... ... hiện toàn bộ
Tập 7 Số 1 - Trang 3-6 - 1983
A SELF‐CONSISTENT COMPILATION OF ELEMENTAL CONCENTRATION DATA FOR 93 GEOCHEMICAL REFERENCE SAMPLESConcentration data obtained by instrumental neutron activation analysis (INAA) are presented for up to 36 chemical elements in 93 geochemical reference samples, including some for which there are little previous data. Because all data are based on at least three independent analyses, and for many of the data the uncertainty associated with counting is an insignificant source of error, the ... ... hiện toàn bộ
Tập 20 Số 2 - Trang 217-245 - 1996