GB/T 18115.1-2020 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides—Part 1:Determination of cerium,praseodymium,neodymium,samarium,europium,gadolinium,terbium,dysprosium,holmium,erbium,thulium,ytterbium,lutetium and yttrium contents in lanthanum metal and oxide

Scope

This part of GB/T 18115 specifies the determination methods for the contents of cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, terbium oxide, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide, yttrium oxide in lanthanum oxide.
This part is applicable to the determination of the contents of cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, terbium oxide, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide, yttrium oxide in lanthanum oxide.
This part is also applicable to the determination of the contents of cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, yttrium in lanthanum metal.
This part includes two methods: Method 1, inductively coupled plasma atomic emission spectrometry; Method 2, inductively coupled plasma mass spectrometry. The determination range of Method 1 is shown in Table 1, and the determination range of Method 2 is shown in Table 2.

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