Standard No.:	GB/T 14352.20-2021
English Name:	Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 20：Determination of niobium，tantalum，zirconium，hafnium and 15 rare earth elements content -- Inductively coupled plasma mass spectrometry
Chinese Name:	钨矿石、钼矿石化学分析方法 第20部分：铌、钽、锆、铪及15个稀土元素量的测定 电感耦合等离子体质谱法
Chinese Classification:	D40    Non-ferrous metal ores in general
Professional Classification:	GB    National Standard
Issued by:	SAMR; SAC
Issued on:	2021-03-09
Implemented on:	2021-10-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	7000 words
Price(USD):	240.00
Delivery:	via email in 1~3 business day

本部分规定了电感耦合等离子体质谱法测定钨矿石、钼矿石中铌、钽、锆、铪以及 ?15个?稀土元素(钇、镧、铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥)含量。本部分适用于钨矿石、钼矿石中铌、钽、锆、铪以及15个稀土元素(钇、镧、铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥)含量电感耦合等离子体质谱法的测定。本部分各元素方法检出限和测定范围见表1。