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SN/T 4034-2014 English PDF

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US$499.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 4034-2014: Determination of naphthols in cosmetics for import and export - LC-MS/MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4034-2014	499	Add to Cart	4 days	Determination of naphthols in cosmetics for import and export - LC-MS/MS method	Valid

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Basic data

Standard ID: SN/T 4034-2014 (SN/T4034-2014)
Description (Translated English): Determination of naphthols in cosmetics for import and export - LC-MS/MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: Y42
Classification of International Standard: 71.100.70
Word Count Estimation: 19,123
Date of Issue: 12/1/2014
Date of Implementation: 5/1/2015
Quoted Standard: GB/T 6682
Regulation (derived from): State-Quality-Inspection-accreditation [2014] 614
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the cosmetics ��- naphthol and ��- naphthol liquid chromatography - mass spectrometry/mass spectrometry. This standard applies to hair dye, perm water, elastin, water gel, nail polish, foundation and other cosmetics ��- naphthol and ��

SN/T 4034-2014: Determination of naphthols in cosmetics for import and export - LC-MS/MS method

---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.
(Determination of the import and export cosmetics naphthol liquid chromatography - mass spectrometry/mass spectrometry) People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of the import and export of cosmetics naphthol Liquid chromatography - mass spectrometry/mass spectrometry LC-MS/MSmethod Issued on. 2014-11-19 2015-05-01 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 was drafted. Jilin People's Republic of China Exit Inspection and Quarantine. The main drafters of this standard. Kangming Qin, Li Aijun, Mou Jun, ZHANG Dai Hui, Hu Tingting Zhao Yun-hui. Determination of the import and export of cosmetics naphthol Liquid chromatography - mass spectrometry/mass spectrometry

1 Scope

This standard specifies the cosmetics α- naphthol and β- naphthol liquid chromatography - mass spectrometry/mass spectrometry. This standard applies to hair dye, perm water, elastin, water gel, nail polish, foundation and other cosmetics α- naphthol and β- naphthol and determination Confirmed.

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

Samples were extracted with methanol, solid phase extraction (SPE), liquid chromatography - mass spectrometry/mass spectrometer and validation, external standard.

4 Reagents and materials

Unless otherwise specified, the reagents were of analytical grade water as a water GB/T 6682 regulations. 4.1 Methanol. HPLC grade. 4.2 acetonitrile. HPLC grade. 4.3 Standard substance. α- naphthol (α-naphthol, CASN o.90-15-3, C10H8O), β- naphthol (β-naphthol, CASN o.135-19-3, C10H8O). Purity ≥98%. 4.4 50% methanol solution (volume fraction). Take 500mL of methanol, diluted with water and dilute to 1000mL. 4.5 standard stock solution. 1.0mg/mL. Accurately weighed amount of standard (accurate to 0.0001g), were prepared with a concentration of methanol Standard stock solution 1.0mg/mL of, 0 ℃ ~ 4 ℃ preservation. 4.6 standard solution. from standard stock solution (4.5) in Imbibe 1.0mL in 100mL flask, diluted with methanol to 10.0μg/mL mixed standard intermediate solution. Then according to need to use a blank matrix solution (4.7) diluted preparation of appropriate concentration using standard work Solution, using now. 4.7 blank matrix solution. Choose free naphthol and specimen sample to be tested with the species, according to the measuring step 7.1 and 7.2 treatment group to give a blank Interstitial fluid. 4.8 SPE column (SPE). polystyrene - divinylbenzene - pyrrolidone (PLS), 150mg, 6mL, or equivalent person; successively before use With 5mL of methanol, 5mL water activated. 4.9 microporous membranes. organic, 0.22μm.

5 instruments and equipment

5.1 Liquid chromatography - mass spectrometry/mass spectrometry. equipped with electrospray ionization (ESI). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 4034-2014_English be delivered?

Answer: Upon your order, we will start to translate SN/T 4034-2014_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of SN/T 4034-2014_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 4034-2014_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.