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中文名稱：鈮礦標(biāo)準(zhǔn)物質(zhì)
英文名稱：Niobium Ore訂貨以英文名稱為準(zhǔn)。
產(chǎn)品編號：OKA-1?CAS：/
品牌：標(biāo)準(zhǔn)物質(zhì)產(chǎn)地：加拿大
標(biāo)準(zhǔn)值：見證書分子式：/
規(guī)格 市場價(元) 折后價(元) 供貨周期 數(shù)量 加入購物車 200g 0.00 0.00 3-4周 加入購物車
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產(chǎn)品詳細(xì)介紹
OKA-1鈮礦石成分分析標(biāo)準(zhǔn)物質(zhì)Niobium Ore Nb：0.37 ± 0.01%
OKA-1 is a sample of niobium ore typical of the carbonatite deposit at Oka in western Quebec. The deposit has been characterized mineralogically in detail at CANMET.
Twenty laboratories provided results for niobium by X-ray fluorescence, colorimetry, D.C. plasma-spectrometry, gravimetry, atomic emission, and atomic absorption techniques.
A certificate of analysis will be issued with each order of OKA-1. A copy of CANMET Report 81-1E, "Niobium ore OKA-1: A certified reference material", will be forwarded, free of charge, on request to the Coordinator, CCRMP.
Recommended Value and 95% Confidence Interval
Constituent wt %
Nb 0.37 ± 0.01
Mineralogical Composition
Mineral wt %
Calcite 84
Apatite 5
Biotite 2
Feldspar 2
Magnetite 2
Dolomite 1
Siderite 1
Clays 1
Chlorite 1
Pyrochlore <1
Approximate Chemical Composition
Constituent wt %
Ca 31.3
Fe 2.8
Si 2.4
Mg 1.3
Mn 1.1
P 1.1
Sr 1.0
Al 0.9
S 0.6
Nb 0.4
K 0.3
Na 0.2
Zn 0.05
Loss on ignition 31.9
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