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SN/T 3848-2014 English PDF

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US$449.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 3848-2014: Determination method of tea polyphenol residues in foods for export. HPLC method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 3848-2014	449	Add to Cart	3 days	Determination method of tea polyphenol residues in foods for export. HPLC method	Valid

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GB 5009.271 GB 5009.22 SN/T 2641 SN/T 3843 SN/T 3845 SN/T 3842

Basic data

Standard ID: SN/T 3848-2014 (SN/T3848-2014)
Description (Translated English): Determination method of tea polyphenol residues in foods for export. HPLC method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 17,193
Quoted Standard: GB/T 6682
Regulation (derived from): AQSIQ notification issued in 2014 on the first batch of 230 industry-standard entry-exit inspection and quarantine
Issuing agency(ies): General Administration of Customs
Summary: This Standard specifies the HPLC method food exports polyphenols. This Standard applies to edible oil, cakes, convenience rice, fried foods and meat sausage tables epigallocatechin gallate (EGCG), epigallocatechin table (EGC), epicatechin gallate (ECG) an

SN/T 3848-2014: Determination method of tea polyphenol residues in foods for export. HPLC 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 method of tea polyphenol residues in foods for export. HPLC method People's Republic of China Entry-Exit Inspection and Quarantine Standards Detection in food for export polyphenols High Performance Liquid Chromatography HPLCmethod Issued on. 2014-04-09 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. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard by the People's Republic of China Entry-Exit Inspection and Quarantine Bureau, Dongguan Comprehensive Technology Center, the People's Republic of China Beijing Entry Inspection and Quarantine Bureau responsible for drafting. The main drafters of this standard. Fudeng Zhou, Li Xiaolin, Li Ju, Huang, Yang Xuejiao, Wen Jianchang, Wang Wei, Zhangjiang Feng. Detection in food for export polyphenols High Performance Liquid Chromatography

1 Scope

This standard specifies the HPLC method for the export of food polyphenols. This standard applies to edible oil, cakes, convenience rice, fried foods and meat sausage tables epigallocatechin gallate (EGCG), Table epigallocatechin (EGC), epicatechin gallate (ECG), and epicatechin (EC) determination does not apply to tea and tea products.

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

Edible oil extracted with methanol, freezing, centrifugation and other samples with n-hexane extraction, the extract was frozen, after centrifugation, HPLC Cytometry, external standard.

4 Reagents and materials

Unless otherwise specified, all reagents were of analytical grade water as a water GB/T 6682 regulations. 4.1 acetonitrile. HPLC grade. 4.2 Methanol. HPLC grade. 4.3 formic acid. HPLC grade. 4.4 epigallocatechin gallate standard (EGCG). CAS No. 989-51-5, molecular formula C22H18O11, molecular weight 458.37, purity of greater than or equal to 95%. Table 4.5 Standard epigallocatechin (EGC). CAS No. 970-74-1, molecular formula C15H14O7, molecular weight 306.27, purity large Than or equal to 95%. 4.6 epigallocatechin gallate standard (ECG). CAS No. 1257-08-5, Formula C15H18O10, molecular weight 442.37, 92% or greater purity. 4.7 Standard epicatechin (EC). CAS No. 490-46-0, molecular formula C15H14O6, molecular weight 290.27, purity greater than or equal At 97%. 4.8 polyphenol component standard stock solution. accurately weighed amount of EGCG, EGC, ECG, EC standards (accurate to 0.0001g), with Dissolved in methanol and set the volume to 10mL, that was EGCG, EGC, ECG, EC concentrations of standard solution 0.5mg/mL of, 0 ℃ ~ At 4 ℃ preservation, valid for two weeks. 4.9 polyphenol components were mixed standard working solution. Apply the above components polyphenols standard stock solutions were necessary, appropriate diluted with water When mixed standard working solution concentration using now. 4.10 microporous membrane. 0.45μm, organic phase. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 3848-2014_English be delivered?

Answer: Upon your order, we will start to translate SN/T 3848-2014_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 3848-2014_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 3848-2014_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.