-
- 全部產(chǎn)品分類
- 標(biāo)準(zhǔn)物質(zhì)
中國(guó)標(biāo)準(zhǔn)物質(zhì) 美國(guó)NIST 歐洲IRMM/ERM 歐洲BCR 英國(guó)MBH 德國(guó)SUS 美國(guó)BS LGC標(biāo)準(zhǔn)物質(zhì) 美國(guó)USGS標(biāo)準(zhǔn)物質(zhì) 國(guó)立環(huán)境標(biāo)準(zhǔn)物質(zhì) IAEA標(biāo)準(zhǔn)物質(zhì) 加拿大礦產(chǎn)科學(xué)室(CCRMP) 日本JSAC標(biāo)準(zhǔn)物質(zhì) 日本GSJ地質(zhì)標(biāo)準(zhǔn)物質(zhì) 美國(guó)ERA標(biāo)準(zhǔn)物質(zhì)
- 藥典及其雜質(zhì)對(duì)照品
- 標(biāo)準(zhǔn)品
- 培養(yǎng)基
- 化學(xué)試劑
- 菌種及細(xì)胞
- 血清
- 試劑盒
- 氣相色譜
- 液相色譜
- 樣品前處理
- 實(shí)驗(yàn)室耗材
- 色譜進(jìn)樣瓶
- 實(shí)驗(yàn)室安全防護(hù)產(chǎn)品
- 電化學(xué)
- 實(shí)驗(yàn)室儀器設(shè)備
-
- 您現(xiàn)在的位置：首頁(yè) >> 產(chǎn)品中心 >> 標(biāo)準(zhǔn)物質(zhì) >> 加拿大礦產(chǎn)科學(xué)室(CCRMP)加拿大礦產(chǎn)科學(xué)室(CCRMP)
-
-
中文名稱：金礦石成分分析標(biāo)準(zhǔn)物質(zhì)
英文名稱：Gold Ore訂貨以英文名稱為準(zhǔn)。
產(chǎn)品編號(hào)：MA-1bCAS：/
品牌：CCRMP產(chǎn)地：加拿大
標(biāo)準(zhǔn)值：見證書分子式：/
規(guī)格 市場(chǎng)價(jià)(元) 折后價(jià)(元) 供貨周期 數(shù)量 加入購(gòu)物車 200g 0.00 0.00 3-4周 加入購(gòu)物車
-
產(chǎn)品詳細(xì)介紹
MA-1b金礦石成分分析標(biāo)準(zhǔn)物質(zhì)Gold Ore
Description
MA-lb is a sample of ore from the Macassa Mine at Kirkland Lake, Ontario. The major mineral constituents of the ore matrix are quartz, feldspar, and dolomite, with minor amounts of muscovite, chlorite and pyrite. Chalcopyrite, sphalerite, hematite, magnetite, altaite and melonite are present in minor to trace levels. Gold occurs mainly as native metal or electrum (alloy with minor silver constituent) mainly as inclusions in the siliceous matrix but also in pyrite. Calaverite (AuTe2) occurs as inclusions in some pyrite grains. The approximate chemical composition of MA-lb is given in the Table.
The ore was dry ground and sieved. The -74 μm fraction was blended and bottled in 200-g units. The stock was sampled systematically and analysed by fire assay/gravimetry (FA/G) and fire assay/ atomic absorption spectometry (FA/AAS) procedures to demonstrate sufficient homogeneity of gold for application as a compositional reference material.
Certification
The recommended value for gold is the unweighted mean of 175 accepted analytical determinations by 28 laboratories. The uncertainty is the estimate of the expected range of reproducibility of this mean with 95% probability, if the measurement program was to be repeated many times. This estimate assumes the results are a sampling from an ANOVA Model ll statistical model.
Results by method classifications are compiled in the Table, where FA refers to fire assay preconcentration, ICPAES refers to inductively coupled plasma atomic emission spectrometry, INAA refers to instrumental neutron activation analysis, and other symbols are described above. CI is the 95% confidence interval for the mean and SLc and Src the between- and within-set standard deviations obtained from the ANOVA. CV is the average within-set coefficient of variation. The median within-set replacation was 5 and the median sample weight was 15g.
Legal Notice
The Canadian Certified Reference Materials Project has prepared this reference material and statistically evaluated the analytical data of the inter-laboratory certification program to the best of its ability. The purchaser, by receipt hereof, releases and indemnifies the Canadian Certified Reference Materials Project from and against all liability and costs arising out of the use of this material and information.
Reference
The preparation and certification procedures used for MA-lb are given in CANMET Report which will be made available free of charge on request.
