GB/T 45000-2024 English PDF

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GB/T 45000-2024: Surface active agents - Determination of components of sucrose fatty acid esters - Liquid chromatography
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 45000-2024	119	Add to Cart	3 days	Surface active agents - Determination of components of sucrose fatty acid esters - Liquid chromatography	Valid

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Basic data

Standard ID: GB/T 45000-2024 (GB/T45000-2024)
Description (Translated English): Surface active agents - Determination of components of sucrose fatty acid esters - Liquid chromatography
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G72
Classification of International Standard: 71.100.40
Word Count Estimation: 6,611
Date of Issue: 2024-11-28
Date of Implementation: 2025-06-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 45000-2024: Surface active agents - Determination of components of sucrose fatty acid esters - Liquid chromatography

---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.
Surface active agents - Determination of components of sucrose fatty acid esters - Liquid chromatography Composition Analysis of Sucrose Fatty Acid Esters as Surfactants Liquid chromatography Surface active agents-Determination of components of sucrose fatty acid esters-Liquid chromatography ICS 71.100.40 CCS G 72 National Standard of the People's Republic of China Released on 2024-11-28 2025-06-01 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 China Light Industry Federation. This document is under the jurisdiction of the National Technical Committee on Standardization of Surfactants and Detergents (SAC/TC 272). This document was drafted by. Hangzhou Ruilin Chemical Co., Ltd., Zhejiang Product Quality and Safety Science Research Institute, China Daily Chemical Research Institute Co., Ltd., Yiwu Standardization Research Institute, Zhejiang Wufangzhai Industrial Co., Ltd., Hangzhou Dakang Pickled Food Co., Ltd., Shandong Fu Reda Biotech Co., Ltd., Yunnan Beitani Biotech Group Co., Ltd., Nanjing Well Biotech Co., Ltd., Guangdong Zhong Kehongtai New Materials Co., Ltd., Guangzhou Kema Biotechnology Co., Ltd., Dongguan Lidun Detergents Industrial Co., Ltd., Jiangsu Han Bang Technology Co., Ltd., Zhejiang University of Technology. The main drafters of this document are. Jiang Kan, Zhou Jiang, Yang Liang, Chen Keshu, Chen Xiaozhen, Wang Qian, Hu Jingjing, Zhang Xinxin, Chen Zhaogui, Yan Hongbing, Xia Shengqin, Niu Canjie, Ding Yicheng, Zhang Donglei, Zhang Shuqi, Lu Caiyuan, Chen Liqun, Ren Xiaoze, Chen Cheng, Yuan Shuying, Wang Yan'e, Dai Peixuan, Zou Jianying, Wu Xiaoqun, Duo Xiu, Yuan Jun, Liu Qianfang, Chen Yongfu, Zhang Qianyao, Zhang Zheng, Yao Chenzhi, Wang Qunjie, Liu Fei, Wang Feifei, Qi Nan, Wang Meiling, Peng Anzhe, Ke Zhiwei, Zhang Dabing. Composition Analysis of Sucrose Fatty Acid Esters as Surfactants Liquid chromatography

1 Scope

This document describes a liquid chromatography method for the compositional analysis of sucrose fatty acid esters of surfactants. This document applies to the composition analysis of synthetic sucrose fatty acid ester 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 Principles of the method

Sucrose fatty acid esters are composed of monoesters, diesters, triesters, tetraesters and other products with different degrees of substitution and unreacted fatty acids. The samples were dissolved and filtered. Afterwards, sucrose fatty acid esters and fatty acids with different degrees of substitution were separated and detected by high performance liquid chromatography, and quantified by area normalization method.

5 Reagents and Materials

5.1 Tetrahydrofuran. chromatographic grade. 5.2 Sucrose fatty acid esters (CAS. 37318-3-3) Reference substance. purity not less than 95%. 5.3 Preparation of sucrose fatty acid ester reference solution. Weigh 0.125 g (accurate to 0.001 g) of reference substance (5.2) into a 25 mL volumetric flask. Add an appropriate amount of tetrahydrofuran (5.1) to dissolve, sonicate for 1 min, and dilute to volume with tetrahydrofuran (5.1). Filter through a microporous membrane and keep the filtrate for later use.

6 Instrument and chromatographic reference conditions

6.1 Instruments 6.1.1 High performance liquid chromatograph. equipped with a differential refractive index or evaporative light scattering detector and a column thermostat system. 6.1.2 Analytical balance. accuracy 0.1 mg. 6.1.3 Micro-injector. 10 μL. 6.1.4 Organic phase microporous membrane. 0.45 μm. 6.1.5 Ultrasonic generator. Ultrasonic power shall not be less than 700 W, and the temperature control range shall be 20 ℃ ~ 80 ℃. 6.2 Liquid chromatography reference conditions 6.2.1 Chromatographic columns. 4 high-efficiency gel permeation chromatography columns (SuperH2500, 6.0 mm × 150 mm, 3 μm) connected in series, or equivalent. 6.2.2 Column temperature. 40 ℃. ......

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