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Determination of formaldehyde in cosmetics for export. Liquid chromatographic method
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Basic data
| Standard ID | SN/T 3820-2014 (SN/T3820-2014) |
| Description (Translated English) | Determination of formaldehyde in cosmetics for export. Liquid chromatographic method |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | Y42 |
| Classification of International Standard | 71.100.70 |
| Word Count Estimation | 7,719 |
| Quoted Standard | GB/T 6682 |
| Regulation (derived from) | AQSIQ notification issued in 2014 on the first batch of 230 industry-standard entry-exit inspection and quarantine |
| Issuing agency(ies) | General Administration of Customs |
| Summary | This Standard specifies two methods of formaldehyde in cosmetics. This Standard applies to shampoo, hand sanitizer measured, lotions, creams, toothpaste, nail polish, powder formaldehyde. |
SN/T 3820-2014: Determination of formaldehyde in cosmetics for export. Liquid chromatographic method
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Determination of formaldehyde in cosmetics for export. Liquid chromatographic method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Determination of Formaldehyde in cosmetics outlet liquid chromatography
Issued on. 2014-01-13
2014-08-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
Some elements of this document may involve patents, publication of this document
Institutions do not assume the responsibility to identify these patents.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Zhejiang Entry-Exit Inspection and Quarantine Bureau Technology Center.
The main drafters of this standard. Lv Chunhua, Xie, F. Cheng Jie, Shi Ying Chu, Chen Xiaomei, Huang Chao-chun.
Determination of Formaldehyde in cosmetics outlet liquid chromatography
1 Scope
According to this standard if there are cosmetics for the presence of formaldehyde, it provides two methods of formaldehyde in cosmetics.
This standard applies to shampoo, hand sanitizer measured, lotions, creams, toothpaste, nail polish, powder formaldehyde.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Laboratory use specifications and test methods GB/T 6682 Analysis
3 Method summary
There is no case of formaldehyde donor, before using the column derivation method, liquid extract derived from a sample of formaldehyde, the reaction of 2,4-dinitrophenyl hydrazone;
Under the presence of formaldehyde donors, after pre-column derivatization fast, solvent extraction block the derivatization reaction, avoid derivatization process of decomposition of formaldehyde donors.
At 355nm wavelength, liquid chromatography (HPLC) assay, external standard.
4 Reagents and materials
Unless otherwise indicated, the reagents used were of analytical grade. The water is a water GB/T 6682 regulations, 10min after boiling before use
cool down.
4.1 acetonitrile. HPLC grade.
4.2 dichloromethane. HPLC grade.
4.3 sodium chloride.
4.4 sodium dihydrogen phosphate.
4.5 phosphoric acid (ρ = 1.69). mass fraction ≥85%.
4.6 buffer solution (pH2). preparation of 0.1mol/L sodium dihydrogen phosphate (4.4), adjusted with phosphoric acid (4.5) pH to 2.0.
4.7 2,4-dinitrophenylhydrazine. Purity ≥99%.
4.8 2,4-dinitrophenylhydrazine solution (2.0g/L). Weigh 2,4 dinitrophenylhydrazine 1.0g, dissolved in acetonitrile and dilute to 500mL.
4.9 Derivative solution. the exact amount of 100mL of buffer solution (4.6) and 100mL2,4- dinitrophenylhydrazine solution (4.8) and mix.
4.10 Formaldehyde standard solution. 100μg/mL. Ampoules package, placed above 10 ℃ stored at room temperature before using (preferably 20 ℃ ± 3 ℃) level
Scale, shaking evenly, recommended a one-time use after opening.
4.11 microporous membrane. 0.45μm, organic phase.
5. Apparatus
5.1 High performance liquid chromatograph. equipped with a diode array detector or a UV detector.
5.2 Analysis of balance. a sense of the amount of 0.001g.
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