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JJG 1151-2025: Verification Regulation of Liquid Chromatograph-Atomic Fluorescence Spectrometers
Status: Valid JJG 1151: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJG 1151-2025 | English | 399 |
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Verification Regulation of Liquid Chromatograph-Atomic Fluorescence Spectrometers
| Valid |
JJG 1151-2025
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| JJG 1151-2018 | English | 419 |
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Liquid Chromatograph-Atomic Fluorescence Spectrometers
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JJG 1151-2018
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Basic data | Standard ID | JJG 1151-2025 (JJG1151-2025) | | Description (Translated English) | Verification Regulation of Liquid Chromatograph-Atomic Fluorescence Spectrometers | | Sector / Industry | Metrology & Measurement Industry Standard | | Word Count Estimation | 19,188 | | Date of Issue | 2025-02-08 | | Date of Implementation | 2025-08-08 | | Issuing agency(ies) | State Administration for Market Regulation | JJG 1151-2025: Verification Regulation of Liquid Chromatograph-Atomic Fluorescence Spectrometers
---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.
National Metrology Verification Regulations of the People's Republic of China
Verification procedures for liquid chromatography-atomic fluorescence spectrometry
Released on 2025-02-08
2025-08-08 Implementation
The State Administration for Market Regulation issued
Liquid chromatography-atomic fluorescence spectrometry
Verification procedures
Replace JJG 1151-2018
Responsible unit. National Physical and Chemical Metrology Technical Committee
Main drafting unit. China Institute of Metrology
Participating in the drafting. Hebei Provincial Institute of Metrology Supervision and Inspection
Beijing Haiguang Instrument Co., Ltd.
Beijing Jitian Instrument Co., Ltd.
This regulation is entrusted to the National Physical and Chemical Metrology Technical Committee for interpretation
The main drafters of this regulation are.
Cui Yanjie (China National Institute of Metrology)
Ma Kang (China National Institute of Metrology)
Wu Bing (China Institute of Metrology)
Participating drafters.
Wang Xiaobing (Hebei Provincial Institute of Metrology Supervision and Inspection)
Liang Jing (Beijing Haiguang Instrument Co., Ltd.)
Feng Ting (Beijing Jitian Instrument Co., Ltd.)
Table of contents
Introduction (II)
1 Scope(1)
2 References(1)
3 Overview(1)
4 Metrological performance requirements (1)
5 General technical requirements(2)
6 Measuring instrument control (2)
6.1 Verification conditions (2)
6.2 Verification Items (3)
6.3 Verification methods (3)
6.4 Processing of test results (5)
6.5 Verification cycle (5)
Appendix A Preparation of mixed solutions of arsenic forms (6)
Appendix B Verification Record Format (Reference) (7)
Appendix C Format of the inner pages of the certification (reference) (9)
Appendix D Preparation of mobile phase and density measurement (12)
Appendix E Verification and Inspection Requirements for Hollow Cathode Lamps for Calibration (13)
Introduction
JJF1001-2011 "General metrological terms and definitions", JJF1002-2010 "National metrological verification procedures
The JJF1059.1-2012 “Evaluation and Expression of Uncertainty in Measurement” together constitute the basis for the formulation of this regulation.
Series specifications.
This regulation is a revision of JJG 1151-2018 "Liquid Chromatography-Atomic Fluorescence Spectrometry".
Compared with.2018, in addition to editorial changes, the main technical changes are as follows.
--- Cancel the requirements for hollow cathode lamps in the control of measuring instruments and revise Appendix E. In Appendix E, it is clarified
As element lamp is a non-metering control device, but as an auxiliary equipment required for verification work, the standard-setting unit needs to effectively
equipment, and detailed description of the periodic inspection of its performance.
The previous versions of this regulation are as follows.
---JJG 1151-2018.
Verification procedures for liquid chromatography-atomic fluorescence spectrometry
1 Scope
This procedure applies to the initial calibration, subsequent calibration and in-use inspection of liquid chromatography-atomic fluorescence spectrometers.
2 References
This specification refers to the following documents.
JJG 705-2014 Liquid Chromatography Verification Procedure
JJG 939-2009 Calibration Procedure for Atomic Fluorescence Photometer
For any referenced document with a date, only the version with the date is applicable to this Regulation; for any referenced document without a date,
The latest version (including all amendments) shall apply to this regulation.
3 Overview
Liquid chromatography-atomic fluorescence spectrometry (hereinafter referred to as LC-AFS) is used for arsenic (As), mercury (Hg),
Instruments for detecting the form and valence state of elements such as selenium (Se) and antimony (Sb).
The working principle of liquid chromatography-atomic fluorescence is to use the infusion pump of liquid chromatography to transfer the liquid in the quantitative loop at a certain speed.
The solid sample is injected into the chromatographic column, so that the different forms and valence components of the elements are physically separated and enter the mixed reaction successively.
The reactant reacts with the reducing agent, and the substance to be tested generates gaseous components that enter the atomizer for atomization. The ground state atoms are excited.
After the light source is irradiated, fluorescence is generated, and the fluorescence intensity values of different forms and valence states are detected by the atomic fluorescence detector.
The intensity is proportional to the sample concentration and can be quantitatively calculated.
The schematic diagram of its structure is shown in Figure 1.
Figure 1 Schematic diagram of liquid-atomic fluorescence structure
4.Metrological performance requirements
The metrological performance requirements of liquid phase-atomic fluorescence are shown in Table 1.
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