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Determination of phosphorus content in detergents - Inductively coupled plasma mass spectrometry
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Basic data
| Standard ID | GB/T 44999-2024 (GB/T44999-2024) |
| Description (Translated English) | Determination of phosphorus content in detergents - Inductively coupled plasma mass spectrometry |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | Y43 |
| Classification of International Standard | 71.100.40 |
| Word Count Estimation | 10,132 |
| 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 44999-2024: Determination of phosphorus content in detergents - Inductively coupled plasma mass 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.
National Standard of the People's Republic of China
ICS 71.100.40CCS Y 43
Determination of phosphorus content in detergents
Inductively Coupled Plasma Mass Spectrometry
Determination of phosphorus content in detergents-
2024-11-28 Release
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. China Daily Chemical Research Institute Co., Ltd., China Light Industry Inspection and Certification (Taiyuan) Co., Ltd., Guangdong Province Zhaoqing City Quality
Metrology Supervision and Inspection Institute, Guangzhou Liby Technology Group Co., Ltd., Xiamen Amber Fragrance Co., Ltd., Zhejiang Hailian New Materials Technology Co., Ltd.
Co., Ltd., Guangzhou Jie Daily Chemical Co., Ltd., Nengchen Daily Chemical (Henan) Co., Ltd., Jiangxi Ruisibo New Materials Co., Ltd., Zhejiang Kaide Chemical
Co., Ltd., Dongguan Standard and Industry Integration Promotion Association, Guangzhou Yilumei Cosmetics Co., Ltd., Chongqing Red Moon Technology Co., Ltd.
Company, Shanxi Engineering Vocational College.
The main drafters of this document are. Li Haojin, Duan Pingmei, Zheng Yangzhen, Meng Lijun, Yang Zhaohui, Fang Xiyan, Lu Liang, Li Fenglei, Wang Peng, Li Xiaomei,
Qiu Long, Zhu Hualiang, Yang Min, Zhang Canhai, Huang Xingliang, Tang Hailong, Zhao Jianheng, Ye Qinghua, He Hua, Li Huifang.
Determination of phosphorus content in detergents
Inductively Coupled Plasma Mass Spectrometry
1 Scope
This document describes a method for the determination of phosphorus in detergents by inductively coupled plasma mass spectrometry.
This document applies to the determination of total phosphorus in phosphorus-free or low-phosphorus detergents.
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
There are no terms or definitions that require definition in this document.
4 Principles of the method
After the sample is digested, it is measured by inductively coupled plasma mass spectrometry, and the element specific mass number mass-to-charge ratio (m/z) is used for qualitative analysis.
The intensity ratio of the mass spectrum signal to the mass spectrum signal of the internal standard element is proportional to the concentration of the element to be measured for quantitative analysis.
5 Reagents and Materials
Unless otherwise stated, only high-grade reagents were used.
5.1 Water, GB/T 6682, Grade 1.
5.2 5% dilute nitric acid solution. dilute 50 mL of nitric acid (HNO3) to 1 L with water.
5.3 Argon (Ar), high purity argon ( >99.999%).
5.4 Helium (He), high purity helium ( >99.999%).
5.5 Target element phosphorus (P) standard substance (1 000 μg/mL), using standard substance/standard sample.
5.6 Internal standard element scandium (Sc) standard substance (1 000 μg/mL), using standard substance/standard sample.
5.7 Phosphorus standard working solution. Take an appropriate amount of target phosphorus (P) element stock solution (1 000 μg/mL) and dilute it step by step with 5% dilute nitric acid solution (5.2).
The standard solution series can be prepared. The phosphorus mass concentration range of the standard series can also be appropriately adjusted according to the phosphorus mass concentration in the sample solution.
The mass concentrations of phosphorus standard series working solutions are shown in Table A.1 in Appendix A.
5.8 Scandium internal standard solution. Take an appropriate amount of internal standard element scandium (Sc) stock solution (1 000 μg/mL), mix with 5% dilute nitric acid solution (5.2) to prepare a
Internal standard solution of appropriate concentration. The mass concentration of scandium internal standard solution is shown in Table A.2.
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