GB 1886.261-2016 English PDFUS$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 1886.261-2016: National Food Safety Standard -- Food Additives -- Phloretin food additives phloretin Status: Valid
Basic dataStandard ID: GB 1886.261-2016 (GB1886.261-2016)Description (Translated English): National Food Safety Standard -- Food Additives -- Phloretin food additives phloretin Sector / Industry: National Standard Classification of Chinese Standard: X40 Word Count Estimation: 10,150 Date of Issue: 2016-08-31 Date of Implementation: 2017-01-01 Regulation (derived from): Announcement of the State Administration of Public Health and Family Planning 2016 No.11 Issuing agency(ies): National Health and Family Planning Commission of the People's Republic of China, State Food and Drug Administration GB 1886.261-2016: National Food Safety Standard -- Food Additives -- Phloretin food additives phloretin---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. (Food safety national standard - Food additive - Phloretin) National Standards of People's Republic of China National Food Safety Standard Food additives phloretin Published 2016-08-31 2017-01-01 implementation People's Republic of China National Health and Family Planning Commission issued National Food Safety Standard Food additives phloretin 1 ScopeThis standard applies to the phlorizin or trilobatin for raw materials of food additives phloretin. 2 Chemical name, molecular formula, structural formula and relative molecular mass 2.1 Chemical Name 3- (4-hydroxyphenyl) -1- (2,4,6-hydroxyphenyl) - propan-1 Formula 2.2 C15H14O5 2.3 formula 2.4 Molecular Weight 274.27 (according to 2007 international relative atomic mass)3 Technical requirements3.1 Sensory requirements Sensory requirements shall comply with the requirements in Table 1. Table 1 Sensory requirements Project requires test methods Color pearl white to pale pink or yellow Status powder The sample was placed on a clean white paper, were visually observed Aroma sweet aroma GB/T 14454.2 3.2 Physical and Chemical Indicators Physical and chemical indicators should be consistent with the provisions of Table 2. Table 2. Physical and chemical indicators Item Index Test Method Phloretin content, w /% ≥ 95 Appendix A Melting point/℃ 260 ~ 262 GB/T 14457.3Appendix ADetermination of the content of the root mesothelin A.1 Reagents and materials A.1.1 Acetonitrile. chromatographically pure. A.1.2 acid. chromatography. A.1.3 phloretin reference substance. purity of at least 98%. A.1.4 Water. a water GB/T 6682 provisions. A.2 instruments and equipment HPLC. as specified in GB/T 27579-2011 Chapter 5, equipped with an ultraviolet detector, or other equivalent detectors. A.3 Reference chromatographic conditions A.3.1 Column. C18 HPLC column, column length 150mm, internal diameter 4.6mm, 5 m particle size; column or other equivalent. A.3.2 Mobile phase. a volume fraction of 40% acetonitrile and 60% aqueous formic acid (0.5% volume fraction) composition. A.3.3 Column temperature. 30 ℃. A.3.4 Pumps. isocratic pump. A.3.5 flow rate. 1.0mL/min. A.3.6 Injection volume. 10μL. A.3.7 Detection wavelength. 285nm. A.3.8 Running time. about 10min. A.4 analysis step Preparation of the reference solution A.4.1 Accurately weighed 0.01g phloretin reference substance, the nearest 0.0001g, dissolved in mobile phase, transferred to 100mL volumetric flask, add the mobile phase Volume to 100mL, 0.45μm membrane resulting solution was filtered and the filtrate set aside. A.4.2 Preparation of sample solution 0.01g sample was accurately weighed, to the nearest 0.0001g, dissolved in mobile phase, transferred to a 100mL volumetric flask, add the mobile phase to the volume 100mL, 0.45μm membrane resulting solution was filtered and the filtrate set aside. A.4.3 Determination In reference A.3 chromatographic conditions, respectively, the reference solution and the sample solution is measured, the peak area recorded. A.5 calculation results Mass fraction content mesothelin root w1, calculated according to formula (A.1). w1 = A1 × m2 × w2 A2 × m1 × 100% (A.1) Where. Peak area of the main peak in the chromatogram of the sample solution A1 ---; m2 --- reference mass, in grams (g); --- reference w2 of mesothelin root mass fraction content,%; Peak area of the main peak in the chromatogram of the reference solution A2 ---; M1 --- sample mass, in grams (g). ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 1886.261-2016_English be delivered?Answer: Upon your order, we will start to translate GB 1886.261-2016_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 GB 1886.261-2016_English with my colleagues?Answer: Yes. The purchased PDF of GB 1886.261-2016_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+ countriesQuestion 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. |
