GB/T 18116.1-2012Yttrium-europium oxide - Part 1: Determination of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, gadolinium oxide, terbium oxide, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide, ytterbium oxide and lutetium oxide contents (English PDF)

Foreword

This standard is in accordance with GB/T 1.1-2009 given rules drafted.

GB/T 18116 "europium chemical analysis of yttrium oxide" is divided into two parts.

--- Part 1. lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, gadolinium oxide, terbium oxide, dysprosium oxide, holmium, erbium oxide, Thulium oxide, ytterbium oxide and lutetium oxide measured quantity;

--- Part 2. Determination of europium oxide content of yttrium oxide. This is Part 1.

Part 1 of this method by inductively coupled plasma atomic emission spectrometry is GB/T 18116.1-2000 "yttrium oxide chemical analysis Inductively coupled plasma atomic emission spectrometry yttrium oxide lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide Gadolinium oxide, terbium oxide, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide, ytterbium and lutetium oxide amount "amendments 2 ICP-MS method Spectroscopy was developed.

When analyzing the scope of the two methods overlap, measuring the amount of thulium oxide to 1 as a method of arbitration, in addition to thulium oxide outer method for The arbitration method.

This section compared with the GB/T 18116.1-2000, the main technical changes are as follows.

--- Expanding the scope of the method of application, yttrium oxide and europium europium oxide measurement range adjusted by the 4.00% ~ 8.00 to 2.00% ~ 10.00%;

--- Adjustment method La2O3, CeO2, Pr6O11, Sm2O3, detection limit of 1 Tb4O7;

--- The method Plains CeO2404.076nm, 446.021nm and Gd2O3342.247nm analytical line, replaced CeO2413.765nm, 418.660nm and Gd2O3 10.050nm;

--- In Method 1 adds reference line Dy2O3400.045nm, Ho2O3 39.898nm and Yb2O3289.138nm;

--- Increasing the precision (repeatability) terms;

--- Increasing the method by inductively coupled plasma mass spectrometry.

This part of the National Standardization Technical Committee of rare earth (SAC/TC229) centralized.

1 Scope

GB/T 18116 provisions of this part of the lanthanum oxide, yttrium oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, gadolinium oxide, Terbium, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide, ytterbium and lutetium oxide content determination.

This section applies to yttrium oxide (europium oxide 2.00% to 10.00%) of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium Gadolinium oxide, determination of terbium oxide, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide, ytterbium and lutetium oxide content. 1 measuring range in Table 1, Method 2 measurement range shown in Table 2.

2 Inductively coupled plasma atomic emission spectrometry (method 1)