Path: Home > SN/T > Page7 > SN/T 3821-2014

Price & Delivery

US$319.00 · In stock · Download in 9 seconds
SN/T 3821-2014: Determination of hexavalent chromium in cosmetics for export - Liquid chromatography-inductively coupled plasma mass spectrometry
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
Status: Valid

Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
SN/T 3821-2014	English	319	Add to Cart	3 days [Need to translate]	Determination of hexavalent chromium in cosmetics for export - Liquid chromatography-inductively coupled plasma mass spectrometry

SN/T 3821-2014: Determination of hexavalent chromium in cosmetics for export - Liquid chromatography-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.
(Hexavalent chromium in cosmetics outlet - Determination - Liquid Chromatography - Inductively Coupled Plasma Mass Spectrometry) People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of hexavalent chromium in cosmetics outlet Liquid Chromatography - Inductively Coupled Plasma Mass Spectrometry 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. Please note that some of the content of this document may involve patents. Distribution 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 is mainly drafted by. People's Republic of China Hubei Exit Inspection and Quarantine. The main drafters of this standard. Guoshao Fei, Wang Peng, Ling about Tao, Luo Jing, Hu Zhong, Wang Fan, Hude Cong, Panrui flowers, Zhao Ya, Wang Hui, Cheng Ye, Shang Yin bamboo, Jin Tao. Determination of hexavalent chromium in cosmetics outlet Liquid Chromatography - Inductively Coupled Plasma Mass Spectrometry

1 Scope

This standard specifies the export of hexavalent chromium in cosmetics by liquid chromatography - inductively coupled plasma mass spectrometry. This standard applies to loose, silty blush, powder, bath powder, powder eye shadow, powder Determination of hexavalent chromium.

2 Normative references

The following documents for the application of this standard 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

Hexavalent chromium specimen using sodium hydroxide solution and extracted by liquid chromatography - inductively coupled plasma mass spectrometer measurement, external standard method Quantified.

4 Reagents and materials

Unless otherwise specified, the reagents were of analytical grade water as a water GB/T 6682 regulations. 4.1 tetrabutyl ammonium hydrogen sulfate. 4.2 ammonia. pure class distinctions. 4.3 Nitric acid. pure class distinctions. 4.4 Magnesium chloride hexahydrate. 4.5 sodium hydroxide. 4.6 dipotassium hydrogen. 4.7 potassium dihydrogen phosphate. 4.8 Methanol. HPLC grade. 4.9 extract (0.05mol/L sodium hydroxide solution). Weigh 2.0g of sodium hydroxide (4.5) dissolved in water, water volume to 1000mL, Mix well and set aside. 4.10 phosphate buffer solution. dipotassium hydrogen 8.71g (4.6) and 6.80g of potassium dihydrogen phosphate (4.7) was dissolved in water, dilute to 100mL, and mix. Mobile phase 4.11 (2mmol/L tetrabutyl ammonium bisulfate solution, 5% methanol, pH = 4.0). Weigh 0.68g of tetrabutyl ammonium hydrogen sulfate (4.1), dissolved in water, was added 50mL of methanol (4.8), set the volume to nearly 1000mL, adjusted with ammonia (4.2) pH to 4.0, water volume to 1000mL. Prior to use, too 0.45μm filter, and ultrasonic treatment 10min. 4.12 2% nitric acid solution. lessons 2mL nitric acid (4.3) in 100mL flask with water to volume. 4.13 hexavalent chromium standard solution. GB W (E) 080257, the standard value of 100μg/mL, or equivalent person. ...