1988 Compilation of Elemental Concentration Data for CCRMP Soils SO-1 to SO-4

Concentration data on 74 individual constituents in CCRMP (Canadian Certified Reference Materials Project) soils SO-1, SO-2, SO-3, and SO-4 have been collected from 83 journal articles and technical reports. These data are summarized in consensus (mean) values with uncertainties expressed as one standard deviation. Mean values are also calculated as a function of analytical procedure and all raw data are given in the tables. Recommended values are proposed based upon data criteria used by NIST (National Institute of Standards and Technology, formerly the National Bureau of Standards or NBS).     

1988 Compilation of Elemental Concentration Data for USGS Basalt BCR-1

Concentration data on up to 82 individual constituents in USGS Basalt BCR-1 have been collected from 1395 journal articles and technical reports. These data are summarized in consensus (mean) values with uncertainties expressed as ± one standard deviation. Mean values are also calculated as a function of analytical procedure and all raw data are given in the tables. Recommended values are proposed based upon data criteria used by NIST (National Institute of Standards and Technology, formerly the National Bureau of Standards or NBS).     

1988 Compilation of Elemental Concentration Data for CCRMP Reference Rock Samples SY-2, SY-3 and MRG-1

Concentration data on 80 individual constituents in Canadian Certified Reference Materials Project rock reference materials SY-2, SY-3, and MRG-I have been collected from 382 journal articles and technical reports. These data are summarized as consensus (mean) values with uncertainties expressed as one standard deviation. Mean values are also calculated as a function of analytical procedure and all raw data are given in the tables. Recommended values are proposed based upon data criteria used by NIST (National Institute of Standards and Technology, formerly the National Bureau of Standards or NBS).     

1982 Compilation of Elemental Concentration Data for the United States Geological Survey's Geochemical Exploration Reference Samples GXR -1 to GXR - 6

Concentration data for as many as 64 constituents in the six United States Geological Survey's (USGS) Geochemical Exploration Reference Samples (GXR) have been collected from journal articles and technical reports published since these reference materials were issued in 1971. These data are summarized into mean +/- one standard deviation values and compared with our previously calculated concentrations based upon USGS round-robin data published in 1978. All new literature data located are presented in the appendices.     

1987 Compilation of Elemental Concentration Data for USGS BIR-1, DNC-1 and W-2

Elemental concentration data on up to 73 individual constituents in BIR-1, DNC-1, and W-2 have been collected from 94 journal articles and technical reports. These data are summarized in consensus (mean) values with uncertainties expressed as one standard deviation. Mean values are also calculated as a function of analytical procedure and all raw data are given in the tables.
Ce rapport rassemble des données analytiques sur 73 éléments dans trois échantillons, BIR-1, DNC-1 et W-2, publiées dans 94 articles scientifiques ou rapports techniques. Quand cela a été possible, les valeurs de consensus (moyenne) sont présentées pour chaque élément avec l'incertitude exprimée un écart-type. Des valeurs moyennes en fonction des procédures analytiques sont également présentées.     

1988 Compilation of Elemental Concentration Data for USGS Geochemical Exploration Reference Materials GXR-1 to GXR-6

Concentration data on 73 individual constituents in United States Geological Survey (USGS) Geochemical Exploration Reference Materials GXR-1 to GXR-6 have been collected from 131 journal articles and technical reports. These data are summarized as consensus (mean) values with uncertainties expressed as one standard deviation. Mean values are also calculated as a function of analytical procedure and all raw data are given in the tables. Recommended values are proposed based upon data criteria used by NIST (National Institute of Standards and Technology, formerly the National Bureau of Standards or NBS).     

1988 Compilation of Elemental Concentration Data for USGS DTS-1, G-1, PCC-1 and W-1

Concentration data on up to 91 individual constituents in USGS DTS-1, G-1, PCC-1, and W-1 have been collected from 1647 journal articles and technical reports. These data are summarized in consensus (mean) values with uncertainties expressed as one standard deviation. Mean values are also calculated as a function of analytical procedure and all raw data are given in the tables. Recommended values are proposed based upon data criteria used by NIST (National Institute of Standards and Technology, formerly the National Bureau of Standrds or NBS).     

New CCRMP Refernce Soils SO-1 to SO-4

Four reference soils have been prepared and certified through the cooperation of Energy, Mines and Resources Canada and Agriculture Canada. Their origin and details of preparation and characterization are presented. Thirty-six laboratories participated in the international certification program by providing approximately 16000 results for 65 elements. One or more of the reference soils were certified for 18 elements and preliminary data were obtained for another 47.     

1987 Compilation of Elemental Concentration Data for USGS BHVO-1, MAG-1, QLO-1, RGM-1, SCo-1, SDC-1, SGR-1 and STM-1

Elemental concentration data on up to 84 individual constituents in BHVO-1, MAG-1, QLO-1, RGM-1, SCo-1, SDC-1, SGR-1 and STM-1 have been collected from 311 journal articles and technical reports. These data are summarized in consensus (mean) values with uncertainties expressed as one standard deviation. Mean values are also calculated as a function of analytical procedure and all raw data are given in the tables.
Ce rapport rassemble des données analytiques parues dans 311 articles scientifiques ou rapports techniques sur 84 éléments dans huit échantillons du Service Géologique des Etats-Unis: BHVO-1, MAG-1, QLO-1, RGM-1, SCo-1, SDC-1, SGR-1 et STM-1. Quand cela a été possible, les valeurs de consensus (moyenne) sont présentées pour chaque élément avec l'incertitude exprimée en un écart-type. Des valeurs moyennes en fonction des procédures analytiques sont également présentées.     

Additional Certified Values for CCRMP Soils SO-1 to -4

New mean values for up to 11 major and minor and up to 11 trace elements in soils SO-1 to SO4 have been calculated by two procedures. Analytical results received by CCRMP subsequent to the certification program of 1979 were included. In one instance, the same procedure as used for certification wherein all results except those rejected on chemical and/or statistical considerations was followed, but little improvement over the 1979 calculations was obtained. The other procedure is proposed by the authors for use in identifying concentration range intervals wherein maximum interlaboratory consensus is observed. The application of this procedure has permitted the certification of the four soils for the content of 24 elements not previously certified.     

主成分分析在地质样品分类与浓度预测中的应用研究

用主成分分析方法研究地质样品的Ｘ荧光光谱强度与浓度的关系,对未知样分类并预测样品浓度。对标准化后的数据计算各样品的主成分得分,根据得分分布图可快速分类样品。对训练样品作主成分回归分析,建立降维的主成分回归模型,用主元回归预测各组分浓度,效果好于多元回归分析方法。     

Compilation of Boron Concentration Data for NBS, USGS and CCRMP Reference Materials

Boron concentration data on 69 different biological, coal and geological reference materials issued by NBS, USGS and CCRMP have been collected from 1951-1986. Data from 135 journal articles and technical reports are included. These data are summarized in consensus (mean) values with uncertainties expressed as pm one standard deviation. Mean values are also calculated as a function of analytical procedure and all raw data are given in the tables.     

1998 Compilation of Analytical Data for Five GSJ Geochemical Reference Samples: The "Instrumental Analysis Series"

Analytical data for five GSJ (Geological Survey of Japan) reference samples, the "Instrumental analysis series" received by October 1998, are compiled. The data reported in publications and personal communications were evaluated statistically, taking into account the analytical method and sample preparation. Based on the selected available data, recommended and preferred values for fourteen major and fifty one minor and trace elements are proposed.     

Uranium Tailings Samples UTS-1 to UTS-4 of CCRMP

The Canadian Certified Reference Materials Project announces the availability of reference uranium tailings sample UTS-1, -2, -3 and -4. Eighteen laboratories participated in the interlaboratory program for total iron, titanium, aluminium, calcium, barium, uranium, thorium, total sulphur, sulphate and arsenic. Eight laboratories participated in the inter-laboratory program for thorium-230, radium-226, lead-210 and polonium-210 in all four samples and for thorium-232, radium-228 and thorium-228 in UTS-1 and UTS-2.     

Fluorine in Twenty-Two International Reference Rock Samples and a Compilation of Fluorine Values for the USGS Reference Samples

Fluorine in 22 international reference samples has been determined with an ion selective electrode following fusion with a Na₂bCO₃-ZnO mixture. To eliminate the effect of fluorine complexes in the solutions, the results presented are means of fluoride determinations from a standard calibration curve and from the method of standard addition. Together with these new determinations an updated compilation of USGS-I reference samples is presented.     

1982 Compilation of Elemental Concentrations in Eleven United States Geological Survey Rock Standards

Elemental 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, medians, and individual means based on analytical techniques.     

Contribution to Evaluation of Analytical Data On Reference Samples

For evaluating the analytical data on reference samples, the following approach is proposed: 1. Analytical methods used are critically reviewed. 2. Outliers are eliminated. 3. Normality of the results is tested. 4. If normality of the results can be accepted, arithmetic mean, its confidence interval and coefficient of the precision are computed. 5. If the results are not normally distributed, median and its statistical characteristics are given. 6. For sets of data with anomalous skewness, logarithmic and lambda transformations are useful approaches.     

地质样品扫描质子探针元素分布图的本底值剔除研究

建立了一个简便、可靠的扫描质子探针元素分布图本底值剔除方法,编制了逐点本底计数值剔除计算程序。结合实际地质样品的扫描质子探针元素分布成图,对方法的有效性做了对比实验。结果表明,与传统的成图方法相比,新方法具有图像清晰、真实的优点。同时讨论了方法的误差和误差的减小途径。     

四种前处理方法对电感耦合等离子体质谱测定植物样品中27种微量元素的影响

采用HNO₃-HClO₄-HF常压消解、HNO₃-H₂O₂-HF高压密闭消解、HNO₃-H₂O₂微波消解,干法灰化后残渣用HNO₃-HF-HClO₄溶解等四种方法对植物样品进行前处理,使用电感耦合等离子体质谱(ICP-MS)对植物样品中的27种元素进行定量分析,探讨了不同前处理方法对ICP-MS测定植物样品中微量元素的影响。分析结果表明: HNO₃-HClO₄-HF常压消解使用大量试剂,污染环境,造成空白值高;在常压体系中HClO₄的加入能提高样品的消解效率,但赶酸不完全,会造成复合离子对钒和砷的干扰;干法灰化过程中某些元素(硼、汞等)会损失;常压消解和高压密闭消解中加入HF能有效地提高铍、稀土、钇、钛、锑、铀等元素的回收率,但在蒸干赶HF的过程中,会造成硼和汞的损失,并且钢套的生锈会造成铬、镍空白值高。尽管没有一种方法能适用于所有元素的分析,但相比较而言,HNO₃-H₂O₂微波消解体系操作简单,大部分元素(除铍、钛、锑、铋、稀土)能得到满意的结果,精密度(RSD)均小于10%(n=10),相对误差(RE)为-4.6%~13.6%。