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Determination of phenols in liquid products from coal chemical industry - Comprehensive two dimensional gas chromatography-mass spectrometry/hydrogen flame ionization detector
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Basic data
| Standard ID | GB/T 45372-2025 (GB/T45372-2025) |
| Description (Translated English) | Determination of phenols in liquid products from coal chemical industry - Comprehensive two dimensional gas chromatography-mass spectrometry/hydrogen flame ionization detector |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | G17 |
| Classification of International Standard | 71.080.90 |
| Word Count Estimation | 26,290 |
| Date of Issue | 2025-02-28 |
| Date of Implementation | 2025-09-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 45372-2025: Determination of phenols in liquid products from coal chemical industry - Comprehensive two dimensional gas chromatography-mass spectrometry/hydrogen flame ionization detector
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GB/T 45372-2025 English version. Determination of phenols in liquid products from coal chemical industry - Comprehensive two dimensional gas chromatography-mass spectrometry/hydrogen flame ionization detector
National Standard of the People's Republic of China
ICS 71.080.90CCS G 17
Determination of phenolic compounds in coal-based liquid phase
Comprehensive two-dimensional gas chromatography-mass spectrometry/hydrogen flame ionization
Detector combination
Determination of phenols in liquid products from coal chemical industry-
Comprehensive two dimensional gas chromatography⁃mass spectrometry/
hydrogen flame ionization detector
2025-02-28 Release
2025-09-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface...
1 Scope...
2 Normative referenced documents...
3 Terms and Definitions...
4 Principle...
The main drafters of this document are. Liu Jianwei, Huang Wei, Jiang Xingjian, Zhi Hongmei, Zhang Qian, Li Yanru, Jiang Zhongjun, Chen Jun, Li Yi, Li Shengsheng, Bai Xuemei,
Li Qunhua, Zhang Xurui, Sun Yongyue, Li Xiaofeng, Yu Ziwei, Gai Qingqing, Zhang Qinqing, Li Shujuan, Guo Fuqiang, Xu Zhen, Sun Yan, Li Wang, Zhang Man,
Gao Dan, Zhao Jiaying, and Yuan Haotian.
Determination of phenolic compounds in coal-based liquid phase
Comprehensive two-dimensional gas chromatography-mass spectrometry/hydrogen flame ionization
Detector combination
1 Scope
This document describes an experimental method for the determination of coal-based liquid phase phenolic compounds by comprehensive two-dimensional gas chromatography-mass spectrometry/hydrogen flame ionization detection.
This document applies to the following coal tar and coal coking wastewater with boiling point ≤ 360 ℃ phenol, C1-phenol, C2-phenol, C3-phenol, diphenyl ether,
Determination of phenol, indane alcohol, naphthol and C1-naphthol compounds.
--The detection limit of phenol in coal tar is 0.015%, the detection limit of C1-phenol and C2-phenol is 0.035%, and the detection limit of C3-phenol is
The detection limits of hydroquinone, indane alcohol, naphthol and C1-naphthol are 0.15%, and the detection limits of these two substances are all in terms of mass fraction.
--The detection limit of phenol in coal coking wastewater is 1.5 mg/L, the detection limit of C1-phenol and C2-phenol is 2.5 mg/L, and the detection limit of C3-phenol is 2.5 mg/L.
The detection limit of phenol, indane alcohol, naphthol and C1-naphthol is 5.0 mg/L, and the detection limit of phenol, indane alcohol, naphthol and C1-naphthol is 15.0 mg/L.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 1999 Sampling methods for coking oil products
GB/T 6682 Specifications and test methods for water used in analytical laboratories
HJ 494 Water Quality Sampling Technical Guide
3 Terms and definitions
There are no terms or definitions that require definition in this document.
4 Principle
The sample was introduced into a comprehensive two-dimensional gas chromatograph equipped with a one-dimensional non-polar chromatographic column and a two-dimensional medium-polar chromatographic column.
The components separated by the chromatographic column enter the mass spectrometer detector and the hydrogen flame ionization detector simultaneously.
The sub-peaks, characteristic ion peaks, one-dimensional retention time, and two-dimensional retention time were jointly qualitatively determined; the detection was carried out by hydrogen flame ionization detector, using
Quantification by internal standard method.
5 Reagents and Materials
Unless otherwise specified, only reagents of analytical grade or higher and distilled water of level 2 or higher conforming to GB/T 6682 were used in the experiments.
Distilled water or water of equivalent purity.
5.1 Anhydrous methanol.
5.2 Hydrochloric acid. 6 mol/L.
...
