GB/T 23594.2-2009 English PDF

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GB/T 23594.2-2009: Sm-Eu-Gd enrichment methods for chemical analysis -- Part 2: fifteen rare earth oxide component by inductively coupled plasma emission spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23594.2-2009	229	Add to Cart	3 days	Sm-Eu-Gd enrichment methods for chemical analysis -- Part 2: fifteen rare earth oxide component by inductively coupled plasma emission spectrometry	Valid

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Basic data

Standard ID: GB/T 23594.2-2009 (GB/T23594.2-2009)
Description (Translated English): Sm-Eu-Gd enrichment methods for chemical analysis -- Part 2: fifteen rare earth oxide component by inductively coupled plasma emission spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H14
Classification of International Standard: 77.120.99
Word Count Estimation: 10,133
Date of Issue: 2009-04-23
Date of Implementation: 2010-02-01
Regulation (derived from): National Standard Approval Announcement 2009 No.5 (Total No.145)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the Sm-Eu-Gd enrichment of REE oxides fifteen determination with components. This section applies to europium, samarium, gadolinium enrichment of REE oxides with fifteen measured component.

GB/T 23594.2-2009: Sm-Eu-Gd enrichment methods for chemical analysis -- Part 2: fifteen rare earth oxide component by inductively coupled plasma emission spectrometry

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Sm-Eu- Gd enrichment methods for chemical analysis - Part 2. fifteen rare earth oxide component by inductively coupled plasma emission spectrometry ICS 77.120.99 H14 National Standards of People's Republic of China Chemical analysis of Sm-Eu-Gd Concentrate Part 2. fifteen rare earth elements Determination oxide with components Inductively Coupled Plasma Atomic Emission Spectrometry Issued on. 2010-02-01 2009-04-23 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 23594-2009 "Methods for chemical analysis of Sm-Eu-Gd Concentrate" is divided into two parts. --- Part 1. Determination of total rare earth oxide gravimetric method; --- Part 2. fifteen rare earth element oxide with components measured by inductively coupled plasma emission spectrometry. This is Part 2. This part of the National Standardization Technical Committee rare and centralized. This part of the Inner Mongolia Baotou Steel Rare Earth Hi-Tech Company, China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting. This section is Baotou Rare Earth Research Institute, Jiangyin Jiahua Advanced Material Resources Co., Ltd Baotou Huamei participated in the drafting. The main drafters of this section. Zhanggui Mei, often Ruimin, Yang Chunhong. The drafters of some of the participants. Liu Xiaojie, gold pianist Gaowa DISPOSAL Hefeng Juan, Gong Jianhua. Chemical analysis of Sm-Eu-Gd Concentrate Part 2. fifteen rare earth elements Determination oxide with components Inductively Coupled Plasma Atomic Emission Spectrometry

1 Scope

This section provides Sm-Eu-Gd Concentrate fifteen rare earth element oxides with determination component. This section applies to Sm-Eu-Gd Concentrate fifteen rare earth element oxide was measured with a component. Determination of the range in Table 1. Table 1 Oxide measurement range (with component) /% Samarium oxide 20.00 ~ 80.00 Europium oxide 5.00 to 20.00 Gadolinia 10.00 ~ 25.00 Lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, dysprosium Holmium oxide, erbium oxide, thulium oxide, ytterbium oxide, lutetium 0.10 ~ 5.00 Terbium oxide 0.10 to 2.00 Yttria 1.00 to 10.00

2 principle of the method

The sample is dissolved by hydrochloric acid. In acid media, directly to the argon plasma excitation source, subjected to spectral measurement, measurement results are normalized Treatment.

3 Reagents and materials

3.1 Hydrogen peroxide (30%). 3.2 HCl (1 + 1). 3.3 hydrochloric acid (1 + 19). 3.4 nitric acid (1 + 1). 3.5 lanthanum oxide standard stock solution. Weigh 0.1000g by 950 ℃ 1h burning lanthanum oxide (REO > 99.5%, La2O3/REO > 99.99%), placed in 100mL beaker, add 10mL of hydrochloric acid (3.2), low-temperature heating to fully dissolve, cooled to room temperature, transferred to 100mL Volumetric flask, dilute with water to volume, and mix. This solution 1mL 1mg containing lanthanum oxide. The solution was then diluted to 1mL with hydrochloric acid (3.3) 100μg and 1mL containing 10μg standard solution containing lanthanum oxide. 3.6 ceria standard stock solution. Weigh 0.1000g by 950 ℃ burning 1h cerium oxide (REO > 99.5%, CeO2/REO > 99.99%), placed in 100mL beaker, add 10mL of nitric acid (3.4), low-temperature heating, and a solution of hydrogen peroxide (3.1) until completely dissolved, Cooled to room temperature and transferred to 100mL volumetric flask, dilute with water to volume, and mix. 1mL solution containing 1mg cerium oxide. Then this solution Washed with hydrochloric acid (3.3) diluted to 1mL 1mL containing 100μg and 10μg standard solution containing cerium oxide. 3.7 praseodymium oxide standard stock solution. Weigh 0.1000g by 950 ℃ 1h burning of praseodymium oxide (REO > 99.5%, Pr6O11/REO > ......

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