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SN/T 2289-2009 English PDF

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US$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 2289-2009: Determination of chloramphenicol thiamphenicol florfenicol in cosmetics for improt and exprot. LC-MS/MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2289-2009	209	Add to Cart	3 days	Determination of chloramphenicol thiamphenicol florfenicol in cosmetics for improt and exprot. LC-MS/MS method	Valid

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Basic data

Standard ID: SN/T 2289-2009 (SN/T2289-2009)
Description (Translated English): Determination of chloramphenicol thiamphenicol florfenicol in cosmetics for improt and exprot. LC-MS/MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: Y42
Word Count Estimation: 8,822
Date of Issue: 2009-02-20
Date of Implementation: 2009-09-01
Regulation (derived from): 2009 No. 5 (total 113) Chinese industry standard filing Announcements
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the cosmetics chloramphenicol, thiamphenicol and florfenicol liquid chromatography mass spectrometry/mass spectrometry. This standard applies to facial cleanser, face cream, toning water chloramphenicol, thiamphenicol and florfenicol detection.

SN/T 2289-2009: Determination of chloramphenicol thiamphenicol florfenicol in cosmetics for improt and exprot. 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 chloramphenicol thiamphenicol florfenicol in cosmetics for improt and exprot.LC-MS/MS method Exit inspection and quarantine industry standard book People's Republic of China Importers cosmetics chloramphenicol, thiamphenicol, Determination of Florfenicol Liquid chromatography - mass spectrometry/mass spectrometry Posted 2009-02-20 2009-09-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

The Standard Appendix A and Appendix B are informative. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard by the People's Republic of China Zhejiang Exit Inspection and Quarantine is responsible for drafting. The main drafters of this standard. Xie, Xijun Yang, Chen Chun, Qian Yan, Chen Xiaomei. This standard is the first release of the entry-exit inspection and quarantine industry standards. Importers cosmetics chloramphenicol, thiamphenicol, Determination of Florfenicol Liquid chromatography - mass spectrometry/mass spectrometry

1 Scope

This standard specifies chloramphenicol, thiamphenicol and florfenicol LC cosmetics - mass spectrometry/mass spectrometry. This standard applies to facial cleanser, creams, toners water chloramphenicol, thiamphenicol and florfenicol detection.

2 Method summary

Sample extraction of Chloramphenicol, Thiamphenicol and Florfenicol, methanol liquid chromatography - mass spectrometry/mass spectrometry and validation, external standard.

3 Reagents and materials

Double distilled water. 3.1 Methanol. HPLC fractions. 3.2 aqueous methanol (2 + 8, by volume) .20mL methanol diluted with water to 100mL. Chloramphenicol 3.3 standard (chloramphenicol, CAS No. 56-75-7, C11H12Cl2N2O5). purity greater than or equal to 99%. 3.4 thiamphenicol standard (thiamphenicol, CAS No. 15318-453, C12H15Cl2NO5S). purity greater than or equal to 99%. 3.5 florfenicol standards (florfenicol, CAS No. 76639-94, C12H15Cl2NO5S). purity greater than or equal to 99%. 3.6 standard stock solution. Weigh appropriate amount of standard, dissolved in methanol solution at a concentration of 100μg/mL. 1 ℃ ~ 4 ℃ refrigerator save. 3.7 mixed standard stock solution. Pipette the appropriate amount each standard stock solution (3.6), diluted with methanol solution at a concentration of 1μg/mL. 1 ℃ ~ 4 ℃ cold storage. 3.8 mixed standard working solution. mixed standard stock solution was diluted as needed with aqueous methanol (3.2) into a standard working solution.

4 instruments and equipment

4.1 High Performance Liquid Chromatography - Mass Spectrometer. equipped with electrospray ionization source. 4.2 vortex mixer. 4.3 high-speed centrifuge. 7000r/min. 4.4 Analysis of balance. a sense of volume, respectively 0.01g and 0.0001g. 4.5 centrifuge tube. 4.6 0.45μm organic phase filters.

5 measuring step

5.1 Sample Preparation Weigh 1g sample (accurate to 0.01g) placed in 50mL stoppered centrifuge tube, add 20mL of methanol, on the vortex mixer 2000r/min, mixing 1min, to 6000r/min centrifugal 5min, Pipette 1.00mL. Pipette 1.00mL (sample solution A) with aqueous methanol Solution to volume 10mL, mix through 0.45μm filters for liquid chromatography - mass spectrometry/mass spectrometer. 5.2 Determination 5.2.1 HPLC conditions a) Column. C8 column, 150mm × 4.6mm (inner diameter), 5μm or equivalent person; ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 2289-2009_English be delivered?

Answer: Upon your order, we will start to translate SN/T 2289-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of SN/T 2289-2009_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 2289-2009_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.