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Textiles - Determination of quinoline
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Basic data
| Standard ID | GB/T 44722-2024 (GB/T44722-2024) |
| Description (Translated English) | Textiles - Determination of quinoline |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | W04 |
| Classification of International Standard | 59.080.01 |
| Word Count Estimation | 10,174 |
| Date of Issue | 2024-09-29 |
| Date of Implementation | 2024-09-29 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 44722-2024: Textiles - Determination of quinoline
---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 Standard of the People's Republic of China
ICS 59.080.01CCS W 04
Determination of quinoline in textiles
2024-09-29 Release
2025-04-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting is required.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China National Textile and Apparel Council.
This document is under the jurisdiction of the National Technical Committee on Standardization of Textiles (SAC/TC 209).
This document was drafted by. Ningbo Huabiao Testing Co., Ltd., Shenzhen Shangshi Technology Co., Ltd., Ningbo Customs Technical Center, Guangdong Ju
Shengxin Material Technology Co., Ltd., Zhejiang Boao New Material Co., Ltd., Changxing Dingqiang Textile Co., Ltd., China Textile Standard (Fujian) Testing Co., Ltd.
Ltd., China University of Metrology, China Textile Standards Inspection and Certification Co., Ltd., Zhejiang Institute of Inspection and Quarantine Science and Technology, Dongguan Xinxiang
Textile Co., Ltd., Chengdu Customs Technical Center, Fujian Fiber Inspection Center.
The main drafters of this document are. Fu Kejie, Feng Rui, Ren Qingqing, Zhang Hui, Wu Gang, Zhou Kun, Yan Ying, Gao Quan, Zou Jie, Liu Jun, Xu Jianguo,
Fang Liangxing, Cao Yeqiang, Zhu Feng, and Lin Jinmei.
Determination of quinoline in textiles
Warning - Personnel using this document should have practical experience in formal laboratory work. This document does not indicate all possible safety
The user is responsible for taking appropriate safety and health measures and ensuring the conditions stipulated by relevant national laws and regulations.
1 Scope
This document describes a test method for the determination of quinoline residues in textiles using gas chromatography-mass spectrometry (GC-MS).
This document applies to all types of textile products.
2 Normative references
This document has no normative references.
3 Terms and definitions
There are no terms or definitions that require definition in this document.
4 Principle
The sample was extracted with methanol by ultrasonic method, and the extract was filtered through a microporous membrane and determined by gas chromatography-mass spectrometry using the external standard method.
5 Reagents
Unless otherwise specified, all reagents used were of chromatographic grade.
5.1 Methanol. CAS No. 67-56-1.
5.2 Quinoline standard substance. CAS No. 91-22-5, purity ≥ 98.0%.
5.3 Standard stock solution. Accurately weigh the quinoline standard substance (5.2) and dilute it with methanol (5.1) to a concentration of 1 000 mg/L.
The standard stock solution should be stored at 0 ℃ ~ 4 ℃ away from light and has a validity period of 6 months.
5.4 Standard working solution. Pipette an appropriate amount of quinoline stock solution (5.3) and use methanol (5.1) to prepare the standard working solution to a concentration of 0.05 μg/mL,
0.1 μg/mL, 0.5 μg/mL, 5.0 μg/mL, 10.0 μg/mL standard working solutions. The standard working solutions should be stored at 0 ℃ ~ 4 ℃ and protected from light.
Save, valid for 3 months.
6 Instruments and Equipment
6.1 Gas chromatography-mass spectrometry (GC-MS). equipped with electron impact ionization source (EI).
6.2 Ultrasonic generator. operating frequency is (40±5) kHz, temperature controllable.
6.3 Analytical balance. graduation values are 0.1 mg and 0.01 g respectively.
6.4 Extractor. 20 mL ~50 mL, made of hard glass, with a stopper.
6.5 Filter membrane. Organic phase needle filter membrane, polytetrafluoroethylene, pore size 0.45 µm.
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