GB/T 20899.14-2017 in English

VALID

Methods for chemical analysis of gold ores - Part 14: Determination of thallium content - Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry

Issued on:2017-09-29
Implemented on:2018-08-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $160.00
$156.00

Standard No:	GB/T 20899.14-2017
Document status:	VALID
Title in English:	Methods for chemical analysis of gold ores - Part 14: Determination of thallium content - Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry
Title in Chinese:	金矿石化学分析方法第14部分：铊量的测定电感耦合等离子体原子发射光谱法和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:	2017-09-29
Implemented on:	2018-08-01
ICS Classification:	77.150.01-Products of non-ferrous metals in general
Chinese Classification:	D46-Precious metal ore
Professional Classification:	GB-National Standard
Related Keywords:	plasma atomic emission spectrometry plasma mass spectrometry plasma mass spectrometry introduction determination thallium content gold ore gb/t
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《GB/T 20899.14-2017金矿石化学分析方法第14部分：铊量的测定电感耦合等离子体原子发射光谱法和电感耦合等离子体质谱法》由TC379（全国黄金标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Introduction

Determination of Thallium in Gold Ore

GB/T 20899.14-2017 specifies the determination of thallium (Tl) in gold ore, mainly using inductively coupled plasma atomic emission spectrometry (ICP-AES) and inductively coupled plasma mass spectrometry (ICP-MS). This article will explain in detail the technical specifications, implementation steps and application background of the standard.

Background of Standard Formulation

As a toxic heavy metal element, the determination of thallium in gold ore is of great significance. The GB/T 20899 series of standards is an important specification in the field of precious metal detection in my country. This part is specifically for the determination of thallium, filling the previous technical gap in this field.

Comparison of technical methods

Method name	Detection range	Sensitivity	Repeatability
ICP-AES	20.0 μg/g ~ 250.0 μg/g	High sensitivity, suitable for medium and high content determination	r ≤ 2.0%
ICP-MS	0.20 μg/g ~ 50.00 μg/g	Ultra-sensitive, suitable for trace analysis	R ≤ 5.0%

Implementation suggestions

Experimental preparation: Ensure the use of high-purity reagents and deionized water. It is recommended to operate in a professional laboratory.

Instrument calibration: Regularly calibrate ICP-AES and ICP-MS equipment to ensure that the resolution and stability meet the requirements.

Sample processing: Strictly follow the standard steps for acid hydrolysis and enrichment to avoid contamination.

More samples: DL/T 5154-2012 NB/T 47013.2-2015 JJG 21-2008

Sample only — not a preview of GB/T 20899.14-2017

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