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GB/T 44209-2024: Nanotechnologies - Measurement of iron content in polysaccharide coated superparamagnetic iron oxide solution - Inductively coupled plasma atomic emission spectrometry
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| GB/T 44209-2024 | English | 319 |
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Nanotechnologies - Measurement of iron content in polysaccharide coated superparamagnetic iron oxide solution - Inductively coupled plasma atomic emission spectrometry
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Basic data
| Standard ID | GB/T 44209-2024 (GB/T44209-2024) |
| Description (Translated English) | Nanotechnologies - Measurement of iron content in polysaccharide coated superparamagnetic iron oxide solution - Inductively coupled plasma atomic emission spectrometry |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | L04 |
| Classification of International Standard | 07.120 |
| Word Count Estimation | 16,135 |
| Date of Issue | 2024-07-24 |
| Date of Implementation | 2025-02-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 44209-2024: Nanotechnologies - Measurement of iron content in polysaccharide coated superparamagnetic iron oxide solution - Inductively coupled plasma atomic emission spectrometry
---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.
Nanotechnologies - Measurement of iron content in polysaccharide coated superparamagnetic iron oxide solution - Inductively coupled plasma atomic emission spectrometry
Nanotechnology Polysaccharide Superparamagnetic Iron Oxide Solution
Iron content measurement Inductively coupled plasma
Emission spectroscopy
Nanotechnologies-Measurement of iron content in polysaccharide coated super﹘
paramagnetic iron oxide solution-Inductively coupled plasma atomic emission
spectrometry
CCS L 04
National Standard of the People's Republic of China
Released on 2024-07-24
2025-02-01 Implementation
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 Measurement principle ... 2
5 Instruments, Apparatus and Reagents ... 2
6 Solution preparation ... 2
7 Measurement steps ... 3
8 Result calculation ... 4
9 Uncertainty Analysis ... 4
10 Measurement Report ... 4
Appendix A (Informative) Example of measurement and uncertainty analysis of iron content in polysaccharide superparamagnetic iron oxide solution ... 5
References ... 8
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 Chinese Academy of Sciences.
This document is under the jurisdiction of the National Technical Committee on Nanotechnology Standardization (SAC/TC 279).
The drafting units of this document. Southeast University, Nanjing University, Chia Tai Tianqing Pharmaceutical Group Co., Ltd., and Suzhou University of Science and Technology.
The main drafters of this document are. Gu Ning, Zhu Jinlei, Lu Chenghui, Zhang Xiquan, Chen Zhilin, Sun Xinghua, Chen Bo, Zhang Yu, Lu Yingqi,
Shen Yan.
Introduction
Polysaccharide superparamagnetic iron oxide is a nanoparticle with superparamagnetic properties formed by highly biocompatible polysaccharides modified on the surface of nano-iron oxide.
Its sterile aqueous solution has been used in preclinical and clinical applications in the fields of disease diagnosis and treatment, including magnetic resonance imaging, magnetic hyperthermia, and stem cell labeling and tracing.
In addition, due to its excellent biosafety and magnetic response performance, it is widely used in life sciences, environmental management, industrial and agricultural production.
Therefore, in-depth research on the performance indicators of polysaccharide superparamagnetic iron oxide solution and the establishment of high
Effective measurement methods and stable quality control systems will greatly promote the development of this type of nanomedicine.
The iron content of polysaccharide superparamagnetic iron oxide solution is the most critical indicator in its quality control system. Accurate measurement of iron content is very important.
The dosage of this type of drug is directly determined, which in turn affects a number of medical applications, including iron supplementation, magnetic resonance imaging, magnetic thermal therapy, and enzyme catalysis simulation.
However, unlike traditional small molecule drugs, the iron content measurement of this type of solution is affected by its own nanostructure, and the conventional method
Therefore, the formulation of a national standard for the measurement of iron content in polysaccharide superparamagnetic iron oxide solutions is of great significance to the application of this type of drug.
The development is of great significance.
At present, there is no measurement standard for the iron content of polysaccharide superparamagnetic iron oxide nanoparticles in China. Inductively coupled plasma optical emission spectroscopy
The method is a general technique for measuring metal elements (including iron) and is specified in the Chinese Pharmacopoeia (2020 edition).
In order to meet the needs of new medical technology research, this document has been developed to expand and improve the original pharmacopoeia methods by combining nanotechnology.
Nanotechnology Polysaccharide Superparamagnetic Iron Oxide Solution
Iron content measurement Inductively coupled plasma
Emission spectroscopy
1 Scope
This document describes the method for measuring the iron content in polysaccharide superparamagnetic iron oxide solutions, including the measurement principle, instruments, apparatus and reagents.
Solution preparation, measurement steps, result calculation, uncertainty analysis and measurement report.
This document applies to the measurement of iron content in iron oxide nanoparticles in aqueous solution using inductively coupled plasma optical emission spectrometry.
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.
in this document.
GB/T 601 Preparation of standard titration solutions for chemical reagents
GB/T 622 Chemical reagent hydrochloric acid
GB/T 4842 Argon
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GSB 04﹘1726 Standard Solution 15 for ICP Analysis (Single Element)
JJG 768 Emission Spectrometer
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Polysaccharide
A type of polymer molecule formed by glucose monomers linked by glycosidic bonds.
3.2
Superparamagnetic iron oxide
When the size of the single magnetic domain iron oxide particles with ferromagnetism or ferrimagnetism is smaller than a certain critical value, the iron oxide particles or particle aggregates
collective.
3.3
Plasma
An ionized gas with a degree of ionization greater than 0.1% and equal positive and negative charges.
[Source. GB/T 30902-2014, 3.1]
3.4
Inductively coupled plasma
Plasma is generated by high-frequency (about 2500 Hz) electromagnetic field induction. The high-temperature and electric-field-free gas region is used as the observation area.
[Source. GB/T 4470-1998, 3.2.4.3]
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