SN/T 2108-2023 English PDFUS$339.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 2108-2023: (Determination of Barbiturates in Imported and Exported Cosmetics) Status: Valid SN/T 2108: Historical versions
Basic dataStandard ID: SN/T 2108-2023 (SN/T2108-2023)Description (Translated English): (Determination of Barbiturates in Imported and Exported Cosmetics) Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: Y42 Classification of International Standard: 71.100.70 Word Count Estimation: 16,194 Date of Issue: 2023-05-05 Date of Implementation: 2023-12-01 Issuing agency(ies): General Administration of Customs SN/T 2108-2008: Determination of barbitals in cosmetics for import and export---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 barbitals in cosmetics for import and export Book People's Republic of China exit and entry inspection and quarantine industry standards Determination of barbiturates in import and export cosmetics Posted.2008-07-17 2009-02-01 implementation People's Republic of China General Administration of Quality Supervision, Inspection and Quarantine released ForewordThis standard Appendix A and Appendix B is an informative annex. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. China Academy of Inspection and Quarantine. The main drafters of this standard. White Birch, Chen Wei, Hao Nan, Zhang Qing, Zhou Xin, Zhang Fan. This standard is the first release of the exit and entry inspection and quarantine industry standards. Determination of barbiturates in import and export cosmetics1 ScopeThis standard specifies the liquid chromatography method for the determination of barbiturates, phenobarbital, amobarbital, and barbiturate in cosmetics. This standard applies to the skin cleansing and care cosmetics, barbiturates, phenobarbital, and pentobarbital sodium and barbiturate sodium Determination.2 principleBarbiturates in cosmetics were extracted with methanol. The extracts were centrifuged and determined by high performance liquid chromatography. According to its reservation Time qualitative, external standard quantitative, liquid chromatography - mass spectrometry confirmed.3 Reagents and materialsReagents were of analytical grade unless otherwise stated. Water was either twice deionized water or distilled water. 3.1 methanol. excellent grade pure. 3.2 Acetonitrile. Chromatographic purity. 3.3 barbiturate standard substance. purity ≥ 99%. 3.4 phenobarbital standard substance. purity ≥ 99%. 3.5 Amylobarbital standard material. purity ≥ 99%. 3.6 Division barbiturate standard material. purity ≥ 99%. 3.7 barbiturates standard stock solution. Accurately weighed amount of barbiturates, phenobarbital, amobarbital, Secretary barbiturate standard substance (Accurate to 0.1mg), methanol formulated to a concentration of 1000μg/mL standard stock solution. 3.8 0.45μm filter.4 instruments and equipment4.1 high performance liquid chromatography. with UV detector. 4.2 microinjector, 10 μL. 4.3 ultrasonic cleaner. 4.4 Centrifuge. more than 5000r/min. 4.5 solvent filter.5 analysis steps5.1 Sample Processing Weigh cosmetics sample about 0.5g (accurate to 0.001g), placed in 50mL stoppered Erlenmeyer flask, add 15mL methanol, ultrasonic Washed in ultrasonic extraction 20min, the extract was transferred to 25mL volumetric flask, diluted with methanol to the mark, mix. Take part of the solution into The tube was centrifuged at 5000 r/min for 10 min. The supernatant after centrifugation was filtered through a filter (3.8) and the filtrate was subjected to liquid chromatography. 5.2 Determination 5.2.1 Chromatographic conditions a) Column. ZORBAXSB-C18 column, 250 mm × 4.6 mm (inner diameter), 5 μm (particle size), or equivalent; ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of SN/T 2108-2023_English be delivered?Answer: Upon your order, we will start to translate SN/T 2108-2023_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 2108-2023_English with my colleagues?Answer: Yes. 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