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GHT1109-2015 English PDF

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US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GHT1109-2015: Determination of methylglyoxal in honey. High performance liquid chromatography
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GH/T 1109-2015	189	Add to Cart	3 days	Determination of methylglyoxal in honey. High performance liquid chromatography	Valid

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Basic data

Standard ID: GH/T 1109-2015 (GH/T1109-2015)
Description (Translated English): Determination of methylglyoxal in honey. High performance liquid chromatography
Sector / Industry: Supply and Marketing Cooperatives Industry Standard (Recommended)
Classification of Chinese Standard: X31
Classification of International Standard: 67.180.10
Word Count Estimation: 8,850
Date of Issue: 2015-03-27
Date of Implementation: 2015-06-01
Quoted Standard: GB/T 6682
Regulation (derived from): Industry standard filing Announcement 2015 No.5 (Total No.185)
Issuing agency(ies): All-China Federation of Supply and Marketing Cooperatives
Summary: This Standard specifies the HPLC method of methylglyoxal in honey. This Standard applies to the determination of the content of methylglyoxal in honey. This Standard methylglyoxal low detection limit of 20 mg/kg.

GHT1109-2015: Determination of methylglyoxal in honey. High performance liquid chromatography

---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 methylglyoxal in honey.High performance liquid chromatography ICS 67.180.10 X31 Record number. 49399-2015 People's Republic of China supply and marketing cooperation industry standards Determination of pyruvic aldehyde content in honey High performance liquid chromatography Released on.2015-03-27 2015-06-01 implementation China National Supply and Marketing Cooperation Headquarters released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009 and GB/T.20001.4-2001. This standard was proposed by the National Bee Product Standardization Working Group. This standard is under the jurisdiction of the All-China Federation of Supply and Marketing Cooperatives. This standard was drafted. Jiangsu Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Chen Lei, Shen Weijian, Zhao Wei, Qi Jun, Ma Li, Wu Bin, Zhang Rui, Shen Chongzhen, Yang Wenyu, Yuan Juan, Chen Huilan, Liu Shanjing. Determination of pyruvic aldehyde content in honey High performance liquid chromatography

1 Scope

This standard specifies the HPLC method for the determination of pyruvic aldehyde in honey. This standard applies to the determination of pyruvic aldehyde content in honey. The detection limit of this standard pyruvic aldehyde is 20mg/kg.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods

3 Principle

After the honey sample is dissolved in water, it is derivatized with o-phenylenediamine, and determined by high performance liquid chromatography, and quantified by an external standard method.

4 reagents and materials

The experimental water should meet the requirements of the first-grade water in GB/T 6682. 4.1 Acetonitrile. C2H3N, chromatographically pure. 4.2 Formic acid. CH2O2, chromatographically pure. 4.3 Pyruvic aldehyde standard. C3H4O2, 40g/100g aqueous solution (CAS. 78-98-8). 4.4 o-phenylenediamine. C6H8N2, analytically pure. 4.5 0.1% formic acid aqueous solution. Measure 1 mL of formic acid (4.2) in a 1 L volumetric flask, dissolve in water and dilute to volume, and make 0.1%. Aqueous formic acid. 4.6 Derivatization reagent. Weigh 0.6 g of o-phenylenediamine (4.4) (accurate to 0.01 g) in a 100 mL volumetric flask, dissolve in water and bring to volume The scale was formulated into a 6 g/L aqueous solution of o-phenylenediamine for derivatization. 4.7 Standard stock solution. accurately weigh the acetone aldehyde standard (4.3) 100mg (accurate to 0.01mg) in a 10mL volumetric flask, diluted with water Release and dilute to the mark and prepare a standard stock solution of 4g/L. Accurately absorb 4g/L of standard stock solution 100μL in 10mL capacity The bottle was diluted with water and brought to volume to obtain a standard stock solution of 40 mg/L. Standard stock solutions of both concentrations are placed in a 4 ° C refrigerator save. 4.8 Standard working solution. Take appropriate amount of 40mg/L and 4g/L standard stock solution (4.7) before use, and dilute with water to a concentration of 2.0 mg/L, 4.0 mg/L, 10.0 mg/L, 20.0 mg/L, 40.0 mg/L, and 100.0 mg/L of an aqueous solution of pyruvic aldehyde are now available. 4.9 Filter. The organic phase is 0.22 μm.

5 instruments and equipment

5.1 High Performance Liquid Chromatograph. equipped with a UV detector. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GHT1109-2015_English be delivered?

Answer: Upon your order, we will start to translate GHT1109-2015_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 GHT1109-2015_English with my colleagues?

Answer: Yes. The purchased PDF of GHT1109-2015_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.