GB/T 40798-2021 in English

VALID

Chemical analysis method of ion-adsorption rare earth ore—Determination of total rare earth contents—Inductively coupled plasma mass spectrometry

Issued on:2021-10-11
Implemented on:2022-05-01
File Format:PDF
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Standard No:	GB/T 40798-2021
Document status:	VALID
Title in English:	Chemical analysis method of ion-adsorption rare earth ore—Determination of total rare earth contents—Inductively coupled plasma mass spectrometry
Title in Chinese:	离子型稀土原矿化学分析方法稀土总量的测定电感耦合等离子体质谱法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2021-10-11
Implemented on:	2022-05-01
Professional Classification:	GB-National Standard
Related Keywords:	rare earth standard substances rare earth total rare earth contents rare earth group rare earth elements
Related Topics:	Handheld Small Ion Trap Mass Spectrometer If the mass of the precursor ion and the mass of the product ion rare earth inductive coupling plasma sheath Ionic rare earth Precursor Product Ions for Mass Spectrometry Method for Determination of Total Rare Earth Mass Spec Precursor Product Ions Total rare earth mass spectrometry molecular weight inductive coupling Total rare earth Inductively Coupled Plasma Rare earth ore Mass Spec + Precursor Ion Peak inductive plasma Rare Earth Standard Rare Earth Standard Mass Spectrometry Molecular Weight chemical ion source atomic analysis type mass spectrometry field ionization plasma ashing thermal ionization mass spectrometry Plasma Mass Spectrometry MS parameter product ion plasma mass spectrometry mass spectrometry molecular weight Ion trap mass spectrometry + ion plasma in english Atomization and plasmaization, prs plasma mass spectrometry molecular weight chemical ion source Inductively Coupled Plasma Mass Spectrometry Rare Earth Spectral Analysis MS ionization method Soil Ion Determination Method Precursor ions for mass spectrometry MS ionization Method for Determination of Peptide Molecular Weight by Mass Spectrometry Atomic mass from Molecular weight mass spectrometry Inductive coupling+ New Inductively Coupled Plasma Mass Spectrometer Mass Spectrometry Molecular Weight Analysis Plasma and Mass Spectrometry How to measure soil ions Plasma zero-dimensional analysis MS ionization method Molecular weight mass spectrometry method Rare Earth Spectral Items lead ore inductively coupled plasma Relative Atomic Mass Determination Method Ionization methods for mass spectrometry Rare Earth Oxide Yttrium Oxide Product ion quantification Mass Spec Ion Hydrazine bromide ion analysis method Various ionization methods for mass spectrometry plasma mass spectrometry field ionization mass spectrometry Inductively Coupled Plasma Mass Spectrometry Manganese mass spectrometry ion spectrum Inductive coupling standard 58 ions in the mass spectrum Total number of ions Mass Spectrometry Ionization Method Ammonium ion analysis method Total Rare Earth Method Fe ion mass spectrometry Ion source for mass spectrometry mass spec ion peak mass plasma mass spectrometry Ionization methods in mass spectrometry Ion Quantitative Analysis Mass Spectrometry Molecular Weight Analysis rare earth capacity method Negative Chemical Ion Source vs. Positive Chemical Ion Mass spec b-ions Mass Spectrometry Ionization Methods Soil Ion Determination Method MS ionization method open ionization mass spectrometry Precursor Product Ions for Mass Spectrometry mass spectrometric product ions mass spectrometry molecular weight Rare earth+ precursor ion mass plasma coupled mass spectrometry ion mass spectrometry Addition ion Precursor ion maldi ionization method precursor ion mass Quantitative analysis of ions mass ionizer Ionization methods in mass spectrometry ionization analysis Quantity of product ions in mass spectrometry MSIM electron ionization MS ion cluster Novel Plasma Mass Spectrometry DC Plasma Mass Spectrometry ion mass analyzer coupled plasma plasma methylation Mass Chromatography of Total Ions Total Ion Mass Chromatography inductive plasma rare earth element atom Inductively Coupled Plasma Mass Spectrometry Mass Spectrometric Ionization Methods Portable Plasma Mass Spectrometry Mass Spectrum Peak Precursor Ion Atomic Dilution Ionization Methods in Mass Spectrometry Ion trap quantitative analysis analytical ionization mass spectrometry electron ionization atomic dilution plasma peak plasma peak analytical ionization mass spectrometry Method for Determination of Performance of Inductively Coupled Plasma Mass Spectrometer Rare Earth Analyzer C atomic mass Molecular ion peaks of compounds Ion Hydrazine Mass Spectrometry Rare Earth Capital Compound Molecular Ion Peak Raw ore condolence plasma Plasma mass spectrometer X7 Ionization Methods for Mass Spectrometry ion atom trap The original ion of ion chromatography Rare earth determination Precursor ion analysis by mass spectrometry Rare earth determination Mass Spectrometry Ionization Methods mass spectrometry Mass spec major ions plasma dual mass spectrometry Inductively Coupled Plasma Dual Mass Spectrometry cAtomic mass Rare earth inspection Total Rare Earth Waste thermal ionization mass spectrometry Inductively Coupled Plasma Mass Spectrometry Sample Preparation ion pair mass Determination of Total Rare Earth Mass Spectrometry Precursor Ion Peak ionization by mass spectrometry Major Ions for Mass Spectrometry Mass Spec + Precursor Ion Peak icpms inductively coupled plasma mass spectrometry Precursor Total Ion Map Mass Spectrometry Ion Detection MS ionization method mass of the c atom Dysprosium oxide quality Rare earth inspection Used ICP-MS Ion Quantitative Analysis Precursor Ions and Precursor Ions in Mass Spectrometry Indium internal standard plasma processing method ionization mass spectrometry Mass Spec + Ion Pair Method secreted rare earth Measurement of plasma parameters ionization measurement rare earth ions The principle of high-quality plasma the atomic mass of c Ion Hydrazine Mass Analyzer Atomic dilution instrument Ammonium ion analysis test method Foreign rare earth analysis methods Total Ion Determination Method Separation method of rare earth total ion in water Rare earth mining rare earth quality Atomic dilution instrument Quantitative transition q1 Methods for isolating promoters Talc powder inductively coupled plasma mass spectrometry plasmolysis Mass Spectrometer Ionization Methods Analytical ion peak How Mass Spectrometry Ionizes Protium Atomic Mass Promoter Isolation Method Dilution separation Precursor ion mass for mass spectrometry Mass Spectrometry Rare Earth plasma sintering Soil Determination Inductively Coupled Plasma Mass Spectrometry Ionic mass spectrometry ionization Plasma electronics Ionization method of MS/MS Analysis of ions by five-point method Atomic mass 12 Atomization of copper ions Water Quality Inductively Coupled Plasma Atomic Mass Spectrometry Inductively Coupled Plasma Mass Spectrometry Mining of rare earth ores mass spectrometry ion element Ions of mass spectrum 58 GBT40798 GB/T 40798-2021 Mass Analyzer Ion Hydrazine CuTiTantalum Inductively Coupled Plasma Mass Spectrometry Primary Trace Rare Earth Analysis Mass spectrometry APCI ion source measures substance molecular weight +36 Ion separation method How to use ion meter to measure potassium ion analysis method video Mass spectrometer ionization method Model ICAP-6300 Coupled Plasma Atom Molecular ionization method method of ionizing molecules Are individual rare earth atoms stable? Mass Spectrometry 4500 Split Ion Source Soft ionization method of mass spectrometry In the mass spectrum if the mass of the precursor ion m1 and the product ion m2 What equipment is used for cold plasma mass spectrometry? The separation principle of adsorption separation method Electrochemical detection methods include ion chromatography Methods for analyzing the structure of ion channels Calculation method of physical and chemical ion migration number Methodological study on the determination of potassium and other cations in dialysate How to separate substances Which substances are suitable for separation by electrophoresis? Separation and purification methods in the field of biomolecules Open direct ionization mass spectrometry analysis method Summary of measurement methods for ammonium ions What substances are suitable for separation by electrophoresis? Which substances are suitable for separation by electrophoresis? Mass spectrometry soft ionization method The principle and production method of ionized water Mineral nutrition soil chloride ion content Thunder magnetic ion measurement method for lead ions The method for determining the molecular weight of a protein is Radioactive element content of ionic rare earth minerals The methods of ionization in mass spectrometry include Calcium ion titration analysis principle and determination method Protoplast isolation methods and their advantages and disadvantages Chemical identification method of cadmium ions Rare earth titration analysis method Determination of Rare Earth International Determination of sodium ions by electrochemical method Ionic rare earth ore quality Method for isocratic separation of similar peaks Water quality copper ion determination method Determination method of total rare earth content in tea Determination method of ferrous ions in soil Ion detection electrochemical method Methods for isolating protozoa Rare earth extraction rate analysis method Trace Rare Earth Analysis Protoplast isolation method university textbook Rare earth industry standard ionic phase rare earth Methods for isolating leaf protoplasts Protoplast isolation method Principle of protoplast fusion method Qualitative analysis method of electronic tongue Electronic Chemicals Plasma Mass Spectrometry Rare earth concentrate product quality Mass spectrometry ionization method in English Chemical separation methods Method for determining flow rate of mass spectrometry ion source Quantitative methods for ionic liquids Plasma resistance test method Principle of sodium ion determination method Detection methods of ion channels in botany How to isolate protoplasts Two methods for protoplast isolation Aluminum ion constant analysis method Methods and principles of protoplast fusion Method for determining molecular ion peak Methods for separation of chiral compounds In situ ionization mass spectrometry Calculation Method of Total Ion Current of Mass Spectrometry Ionization methods are hard ionization and soft ionization

《GB/T 40798-2021离子型稀土原矿化学分析方法稀土总量的测定电感耦合等离子体质谱法》由TC229（全国稀土标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Introduction

Technical background of the standard

This standard was proposed by the National Rare Earth Standardization Technical Committee (SAC/TC229). For the special resource of ion adsorption rare earth ore, it established for the first time a unified method for determining the total amount of rare earth using inductively coupled plasma mass spectrometer. Compared with traditional chemical analysis methods, ICP-MS technology reduces the detection limit to 0.010%, significantly improving analysis efficiency.

Detailed explanation of the method principle

The sample was decomposed by hydrofluoric acid-perchloric acid system, and the simultaneous determination of 15 rare earth elements was achieved through the argon plasma ionization source. Key technical points:

Key steps	Technical parameters	Quality control
Sample pretreatment	HF-HClO4 digestion→HNO3 dissolution	Blank test was carried out in parallel
Instrument calibration	Rh/In double internal standard calibration	RSD≤5%
Mass resolution	≥0.8u	Daily calibration

Standard solution configuration specifications

The standard requires the configuration of three types of mixed standard solutions:

Light rare earth group: La/Ce/Nd/Y mixed solution (5.23-5.24)
Medium rare earth group: Pr/Sm/Gd/Dy mixed solution (5.25-5.26)
Heavy rare earth group: Eu/Tb/Ho/Er/Tm/Yb/Lu mixed solution (5.27-5.28)

Actual application case: When testing samples from a mining area, a 6-point standard curve needs to be configured according to the gradient dilution in Table 2 to ensure that the linear correlation coefficient of each element R²>0.999.

Precision control requirements

Determine the repeatability limit (r) and reproducibility limit (R) by linear interpolation:

Content range (%)	Repeatability limit (r)	Reproducibility limit (R)
0.01-0.037	0.002	0.003
0.10-0.21	0.01	0.015

Implementation suggestions

1. Mass spectrometry interference treatment: It is recommended to use collision reaction cell technology to eliminate oxide interference (such as the effect of CeO+ on Gd+)

2. Selection of standard substances: GSB04-3267-2015 rare earth standard substances are preferred for method verification

3. Result report: The final data is rounded to two significant figures according to GB/T8170, and the detection uncertainty is indicated

More samples: DL/T 368-2010 NB/T 47013.2-2015 JC/T 2453-2018

Sample only — not a preview of GB/T 40798-2021

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