GB/T 14352.20-2021
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 (English Version)

Standard No.

GB/T 14352.20-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 14352.20-2021

Scope

This part of GB/T14352 stipulates the determination of niobium, tantalum, zirconium, hafnium and 15 rare earth elements (yttrium, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium) content. This part is applicable to niobium, tantalum, zirconium, hafnium and 15 rare earth elements (yttrium, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium) in tungsten ore, molybdenum ore , lutetium) content determination by inductively coupled plasma mass spectrometry. The detection limit and determination range of each element in this part are shown in Table 1. Table 1 The detection limit and measurement range of each element are in micrograms per gram. The detection limit of the analysis element is the detection limit. The detection limit of the analysis element is the measurement range. 0.005 0.05~100 0.01 0.05~100 Tantalum zirconium hafnium yttrium lanthanum cerium praseodymium neodymium samarium 0.07 2.

GB/T 14352.20-2021 Referenced Document

• GB/T 14505 Method for chemical analysis of rocks and ores.General rules and regulations
• GB/T 6682 Water for analytical laboratory use.Specification and test methods

GB/T 14352.20-2021 history

• 2021 GB/T 14352.20-2021 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

GB/T 14352.20-2021 -All Parts