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中文名称：铌矿标准物质
英文名称：Niobium Ore订货以英文名称为准。
产品编号：OKA-1 CAS：/
品牌：标准物质产地：加拿大
标准值：见证书分子式：/
规格 市场价(元) 折后价(元) 供货周期 数量 加入购物车 200g 0.00 0.00 3-4周 加入购物车
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产品详细介绍
OKA-1铌矿石成分分析标准物质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
