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GB/T 44790-2024: Nanotechnologies - Detection method for solid phase extraction performance of polystyrene nanofibers
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Nanotechnologies - Detection method for solid phase extraction performance of polystyrene nanofibers
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GB/T 44790-2024
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Standard similar to GB/T 44790-2024 GB/T 51033 GB/T 50082 Basic data | Standard ID | GB/T 44790-2024 (GB/T44790-2024) | | Description (Translated English) | Nanotechnologies - Detection method for solid phase extraction performance of polystyrene nanofibers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G30 | | Classification of International Standard | 07.120 | | Word Count Estimation | 19,124 | | Date of Issue | 2024-10-26 | | Date of Implementation | 2025-05-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 44790-2024: Nanotechnologies - Detection method for solid phase extraction performance of polystyrene nanofibers
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT44790-2024
ICS 07.120
CCSG30
National Standard of the People's Republic of China
Nanotechnology Polystyrene Nanofibers
Solid phase extraction performance test method
Released on October 26, 2024
Implementation on May 1, 2025
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Abbreviations 2
5 Principle 2
6 Reagents and Materials 2
7 Instruments and Equipment 2
8 Solution Preparation 3
9 Sample Preparation 3
10 Detection Method 3
11 Result calculation 5
12 Test Report 6
Appendix A (Informative) Fluorescence Spectrophotometry Test Example 8
Appendix B (Informative) High Performance Liquid Chromatography Test Example 10
Reference 13
Preface
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.
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 Chinese Academy of Sciences.
This document is under the jurisdiction of the National Technical Committee on Nanotechnology Standardization (SAC/TC279).
This document was drafted by. Southeast University, Nanjing Product Quality Supervision and Inspection Institute (Nanjing Quality Development and Advanced Technology Application Research Institute
Institute), Suzhou Metrology and Testing Institute, and Suzhou Dongqi Biotechnology Co., Ltd.
The main drafters of this document are. Kang Xuejun, Wu Xiaoxiao, Gu Zhongze, Zhang Chi, Zhou Jungui, Fang Dan, Deng Jianjun, Xu Jingjing, Jiang Diyao, Fan Wei,
Mei Xiuming, Yan Yan, Shen Kangwei, Wang Yunxiang, Qiu Jinli, Yang Miao, Ji Hanxu, Wang Can, Gu Huidan, Chu Lanling, Li Yufeng, Qiang Yuwei, Xiao Youyu,
Qiao Ling, Wei Lanlan, and Xie Li.
introduction
In modern chemical analysis, sample preparation and separation are indispensable for the quantitative analysis of target compounds in complex matrix samples.
Pretreatment is a key factor in determining the sample analysis methodological indicators, such as recovery rate, repeatability, reproducibility, etc.
A sample pretreatment technology for separation and purification has become a commonly used method in micro or trace chemical analysis and has gradually been incorporated into
Standardized procedures.
Polystyrene nanofibers are used as solid phase extraction adsorbents for pretreatment of weak polar compounds detection. The physical properties of this material make
With the widespread application of electrospinning technology around the world, polystyrene nanofibers have been
Now it is in large-scale mass production and application.
At present, there is no standard for the detection of relevant indicators of polystyrene nanofiber solid phase extraction at home and abroad, which is not conducive to product quality.
Rhodamine B has a moderate oil-water partition coefficient. As a representative of weakly polar compounds, its aqueous solution has a bright purple-red color and is easy to observe.
According to the characteristics of polystyrene nanofibers that can selectively adsorb weakly polar compounds, rhodamine B was selected as the target compound for detection.
The extraction efficiency, intra-batch repeatability and inter-batch consistency of Rhodamine B in the polystyrene nanofiber loaded column were measured to evaluate the extraction efficiency, intra-batch repeatability and inter-batch consistency of Rhodamine B in the polystyrene nanofiber loaded column.
The solid phase extraction performance of nanofiber as a pretreatment adsorbent for micro or trace analysis.
It has a positive role in promoting the development of rice fiber industry.
Nanotechnology Polystyrene Nanofibers
Solid phase extraction performance test method
1 Scope
This document describes the extraction efficiency, intra-batch reproducibility, and performance of polystyrene nanofiber solid phase extraction (SPE) for micro or trace analysis.
Methods for testing refolding and batch-to-batch consistency.
This document applies to the performance testing of polystyrene nanofibers as solid phase extraction adsorbents in micro or trace analysis.
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 6682 Specifications and test methods for water used in analytical laboratories
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Nanofiber
The external dimensions of two dimensions are similar and are at the nanometer scale, and the external dimension of the remaining dimension is significantly larger than the nanometer scale of the other two dimensions.
Meter object.
NOTE 1 Nanofibers can be either flexible or rigid.
Note 2.For two dimensions of similar size, the difference between their external dimensions is less than 3 times, and the longest external dimension is more than 3 times larger than the other two dimensions.
NOTE 3 The longest external dimension may not be in the nanometer range.
[Source. GB/T 32269-2015, 4.3, with modifications]
3.2
extraction yield
The ratio between the amount of analyte extracted from the sample matrix during extraction and the amount of analyte present in the sample.
[Source. ISO 12787.2011, 2.1.7]
3.3
intra-batch repeatability
In the same laboratory, by the same operator using the same equipment, according to the same test method, at least 6 solid phase extraction
Take the column and use the same matrix to add standard sample to test respectively, and the consistency between the extraction rate test values of the target compound obtained.
[Source. SN/T 4852-2017, 3.16, with modifications]
3.4
inter-batch consistency
The extraction rates of target compounds were detected using solid phase extraction columns of different batches, and the obtained detection values were statistically different.
[Source. SN/T 4852-2017, 3.16, with modifications]
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