GB/T 35829-2018: Translated English of Chinese Standard. (GBT 35829-2018, GB/T35829-2018, GBT35829-2018): Determination of Four Naphthalenediols in Cosmetics - High Performance Liquid ChromatographyThis Standard specifies high performance liquid chromatography for the determination of 1,7-naphthalenediol, 2,3-naphthalenediol, 1,5-naphthalenediol and 2,7-naphthalenediol in cosmetics. This Standard is applicable to the determination of 1,7-naphthalenediol, 2,3-naphthalenediol, 1,5-naphthalenediol and 2,7-naphthalenediol in non-wax-based cream, lotion, gel, water and powder cosmetics. |
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Contents
| 3 | |
Introduction | 4 |
Scope | 5 |
Reagents and Materials | 6 |
Analytical Procedures | 7 |
Results Calculation | 8 |
Recovery Rate and Precision | 9 |
Appendix A Informative Information on Naphthalenediol Standard Substance | 10 |
Appendix B Informative Liquid Chromatogram and Spectrogram of Four Naphthalenediols Standard Substance Solutions | 11 |
Informative Confirmation Test | 14 |
Common terms and phrases
1,7-naphthalenediol and 2,3-naphthalenediol 1,7-naphthalenediol Time/min 100mL brown volumetric 10mL stoppered colorimetric 2,7-Naphthalenediol Standard 2,7-Naphthalenediol Standard Substance 2mL of solution accurate to 0.001g acetic acid solution acid solution 4.4 brown volumetric flasks CAS Numbers Chemical Structures Chinese Names Chromatogram of Four Chromatograph Gradient Elution chromatographic peak chromatography reference conditions conditions of high-performance constant volume Cosmetics 2015 Edition ethanol 4.3 Figure B.5 four naphthalenediols standard gas pressure high-performance liquid chromatograph INCI Names Ion source Liquid chromatography reference liquid chromatography-mass spectrometry/mass mass concentration Mass spectrometry reference masses and chemical method quantification limit Molecular Formulas Naphthalenediols in Cosmetics naphthalenediols standard stock naphthalenediols standard substances performance liquid chromatography place into 100mL prohibited substances Qualitative ion Quantitative Relative Molecular Masses retention specimen solution Spectrogram of 1,5-Naphthalenediol Spectrogram of 1,7-Naphthalenediol spectrometry reference conditions standard curve standard stock solutions Standard Substance Solution Table C.1 Take 2mL test composition Time/min Time/min volume to 5mL vortex oscillator 5.3 Wavelength/nm Figure µg/mL
Bibliographic information
| Title | GB/T 35829-2018: Translated English of Chinese Standard. (GBT 35829-2018, GB/T35829-2018, GBT35829-2018): Determination of Four Naphthalenediols in Cosmetics - High Performance Liquid Chromatography |
| Author | https://www.chinesestandard.net |
| Publisher | https://www.chinesestandard.net, 2019 |
| Length | 16 pages |
| Export Citation | BiBTeX EndNote RefMan |