铌AAS标准液

This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to SI unit kg and measured against primary material from an NMI, e.g. NIST.
Certified content incl. uncertainty and expiry date are given on the label.
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1000mg/L Nb 溶于 2% 硝酸（含微量 HF）中，由高纯度铌金属、HNO₃、HF 和 水制备而成。

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