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Determination of fluorine in import and export cosmetics. Ion chromatographic method
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Basic data
| Standard ID | SN/T 3608-2013 (SN/T3608-2013) |
| Description (Translated English) | Determination of fluorine in import and export cosmetics. Ion chromatographic method |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | Y42 |
| Classification of International Standard | 71.100.70 |
| Word Count Estimation | 7,712 |
| Quoted Standard | GB/T 6682 |
| Regulation (derived from) | National quality recognition (2013), No. 464; industry standard filing Notice No. 1 of 2014 (No. 169 overall) |
| Issuing agency(ies) | General Administration of Customs |
| Summary | This standard specifies the ion chromatographic method cosmetics fluorine. This standard applies to toothpaste, mouthwash, teeth whitener, breath freshening agents in cosmetics determination of fluorine. |
SN/T 3608-2013: Determination of fluorine in import and export cosmetics. Ion chromatographic method
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Determination of fluorine in import and export cosmetics. Ion chromatographic method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Cosmetics import and export of fluoride ion chromatography
Issued on. 2013-08-30
2014-03-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
Accordance with the standards GB/T 1.1-2009, rules GB/T 20001.4-2001 given draft.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. Inner Mongolia, People's Republic of China Exit Inspection and Quarantine.
The main drafters of this standard. ZHANG Chun-yan, Pan Guoqing, Lu Hua Wei, Zheng Book Fair, Baiguo Tao, Liu Jun to.
Cosmetics import and export of fluoride ion chromatography
1 Scope
This method specifies ion chromatographic method of fluorine in the import and export of cosmetics.
This method is applicable to toothpaste, mouthwash, teeth whitener, breath fresheners determination of fluorine in cosmetics.
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
With a base fixed sample of fluorine, high temperature ashing to remove organic impurities in the sample is converted to form a fluorine salt, in neutral or slightly alkaline
Under the conditions, ion exchange chromatography - conductivity detector measurement, external standard.
4 Reagents and materials
Unless otherwise indicated, all reagents were of analytical grade, to comply with a test water or conductivity water GB/T 6682 requirements to achieve
18.2MΩ · cm of ultra-pure water.
4.1 potassium hydroxide (KOH). excellent pure, crushed before use.
4.2 Sodium carbonate (Na2CO3).
4.3 sodium bicarbonate (NaHCO3).
4.4 sodium carbonate solution (0.5mol/L). take 53.0g sodium carbonate (4.2) dissolved in water volume to 1L.
4.5 sodium bicarbonate solution (0.5mol/L). take 42.0g sodium bicarbonate (4.3) dissolved in water volume to 1L.
4.6 1.0mmol/L and 1.0mmol L sodium bicarbonate, sodium carbonate mixed solution /. Take 0.5mol/L sodium carbonate (4.4) 2mL and
0.5mol/L sodium bicarbonate (4.5) 2mL in 1000mL volumetric flask with water to volume, and mix.
4.7 3% sulfuric acid solution. Measure 30mL of concentrated sulfuric acid slowly into 1000mL water, cooling and shake.
4.8 sodium fluoride (NaF). above 99%.
4.9 fluoro standard stock solution (1000mg/L). Weigh accurately 0.2210g by 100 ℃ ± 5 ℃ drying 4h cooled to room temperature, sodium fluoride
(4.8), was dissolved in water and transferred to 100mL volumetric flask, add water to volume, and mix. Storing high-density polyethylene bottles 4 ℃ to save, or use
Traceable standard stock solution.
4.10 fluoro standard solution (100mg/L). lessons 10.00mL fluoro standard stock solution (4.9) into 100mL volumetric flask, add water to
Volume, and mix.
4.11 fluoro standard working solution. using the serial dilution method to draw fluoro standard solution (4.10), respectively, according to the content of the sample can be dubbed 1.0mg/L,
2.0mg/L, 5.0mg/L, 8.0mg/L, 10.0mg/L, 20.0mg/L to any one (s) suitable concentration range of the standard curve.
4.12 AnpelcleanTMIC-H cation exchange column or an equivalent person. 1mL, column capacity of 2.0mmol. Continued 3mL injection before use
Device with 10mL water to pH 5-6. Of used H-type cation exchange column can be reused, but must be cleaned and transformed into
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