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GB/T 38789-2020: Oral care and cleansing products - Determination of 10 elements in toothpastes - Inductively coupled plasma mass spectrometry
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 38789-2020 | English | 189 |
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Oral care and cleansing products - Determination of 10 elements in toothpastes - Inductively coupled plasma mass spectrometry
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GB/T 38789-2020
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Basic data | Standard ID | GB/T 38789-2020 (GB/T38789-2020) | | Description (Translated English) | Oral care and cleansing products - Determination of 10 elements in toothpastes - 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 | 10,178 | | Date of Issue | 2020-04-28 | | Date of Implementation | 2020-11-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 38789-2020: Oral care and cleansing products - Determination of 10 elements in toothpastes - Inductively coupled plasma mass spectrometry
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Oral care and cleansing products--Determination of 10 elements in toothpastes--Inductively coupled plasma mass spectrometry
ICS 71.100.40
Y43
National Standards of People's Republic of China
10 elements in toothpaste
Determination of content by inductively coupled plasma mass spectrometry
2020-04-28 release
2020-11-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the China National Light Industry Council.
This standard is under the jurisdiction of the National Standardization Technical Committee for Oral Care Products (SAC/TC492).
This standard was drafted by. Suzhou Shipu Testing Technology Co., Ltd., Guangzhou Huaxin Testing Technology Co., Ltd., Suzhou Luye Commodity Co., Ltd.
The company, Suzhou Quality Inspection Scientific Research Institute, Guangzhou Quality Supervision Inspection Research Institute, Heilongjiang Light Industry Scientific Research Institute, Infinitus (China) have
Limited company, Jiangsu Product Quality Supervision and Inspection Institute, Hebei Food Inspection and Research Institute, Jiangsu Food and Drug Administration and Inspection Institute, Jiangxi
Suzhou Inspection Bureau of Suzhou Drug Administration, Suzhou Drug Inspection and Testing Research Center, Changzhou Food and Drug Supervision and Inspection Center, Changzhou
State Inspection and Testing Standards Certification Institute.
The main drafters of this standard. Xunzhiqing, Song Shuwen, Dai Dan, Liu Dong, Li Hongyu, Shang Wei, Zhang Zheng, Liu Wenyu, Ye Zhuhong, Ye Jiarong, Zhang Yan,
Zhou Qi, Sun Hongmei, Chu Yeguo, Wang Jing, Li Yingyi, Chen Wei, Cao Zhiyan, He Shuang, Hou Xiangchang, Liu Qunlin, Shi Bing, Li Dongliang, Zhu Dandan, Gao Hongying,
Dai Hang, Zhou Xiaomei, Zhu Yirong, Zhou Fei, Wu Yanpeng, Guo Mengting, Lu Jian.
10 elements in toothpaste
Determination of content by inductively coupled plasma mass spectrometry
1 Scope
This standard specifies the inductive coupling plasma of 10 metal elements of lead, arsenic, mercury, selenium, iron, copper, manganese, cadmium, chromium and titanium in toothpaste and mouthwash
Principles of measuring methods of progeny mass spectrometry, reagents or materials, instruments and equipment, instruments and equipment, test data processing, detection limit and quantification limit and precision.
This standard applies to the determination of 10 elements in lead, arsenic, mercury, selenium, iron, copper, manganese, cadmium, chromium and titanium in toothpaste.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document.
GB/T 33087 High purity water specification and test method for instrument analysis
3 Principle
After digestion, the sample is measured by inductively coupled plasma mass spectrometer, characterized by the element mass-to-charge ratio (m/z), using external standard method
The intensity ratio of the mass spectrometry signal of the element to the mass signal of the internal standard element is proportional to the concentration of the element to be measured for quantitative analysis.
4 Reagents or materials
Unless otherwise stated, the reagents used are of analytical purity, and the water used is high purity water in accordance with GB/T 33087.
4.1 Nitric acid. superior purity or higher purity.
4.2 30% hydrogen peroxide. excellent grade pure.
4.3 Hydrofluoric acid. excellent grade pure.
4.4 Nitric acid solution (5%, volume fraction). accurately measure 50mL of nitric acid (see 4.1), slowly add 950mL of water, and mix well.
4.5 Element standard stock solutions (each 1000 mg/L). lead, arsenic, mercury, selenium, iron, copper, manganese, cadmium, chromium, and titanium use standard substance certificates
Single or multi-element standard stock solution.
4.6 Standard stock solution of internal standard elements (each 1000mg/L). scandium, germanium, indium, rhodium, rhenium, bismuth, etc. use single elements with standard substance certificates
Or multi-element standard stock solution.
4.7 Mixed standard working solution. Pipette appropriate amount of elemental standard stock solution (see 4.5) and dilute with nitric acid solution (see 4.4) to make a mixed standard
For the quasi-working solution series, see the mass concentration of each element in Appendix A A1.
Note. According to the mass concentration level of the element in the sample digestion solution, appropriately adjust the mass concentration range of each element in the standard series.
4.8 Internal standard working solution. take appropriate amount of internal standard element stock solution (see 4.6), prepare a suitable concentration of internal standard working solution with nitric acid solution (see 4.4)
For the reference concentration of the liquid and internal standard elements, see Appendix A.2.
Note. The internal standard solution can be added manually in the preparation of mixed standard working solution and sample digestion solution, or it can be added online by the instrument.
5 Instruments
5.1 Inductively coupled plasma mass spectrometer (ICP-MS).
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