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SN/T 4675.7-2016 English PDF

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US$229.00 · In stock
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SN/T 4675.7-2016: Determination of acetaldehyde in wine for export--Gas-chromatography mass spectrometry method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4675.7-2016	229	Add to Cart	3 days	Determination of acetaldehyde in wine for export--Gas-chromatography mass spectrometry method	Valid

Similar standards

GB/T 10343 GB/T 394.1 GB 4927 SN/T 4675.11 SN/T 4675.1 SN/T 4675.10

Basic data

Standard ID: SN/T 4675.7-2016 (SN/T4675.7-2016)
Description (Translated English): Determination of acetaldehyde in wine for export--Gas-chromatography mass spectrometry method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X62
Word Count Estimation: 10,184
Date of Issue: 2016-12-12
Date of Implementation: 2017-07-01
Regulation (derived from): State-Quality-Inspection-Accredidation (2016) No.590
Issuing agency(ies): General Administration of Customs

SN/T 4675.7-2016: Determination of acetaldehyde in wine for export--Gas-chromatography mass spectrometry 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 Acetaldehyde in Exported Vintage Gas Chromatography - Mass Spectrometry) People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard Determination of acetaldehyde in exported wine Gas chromatography-mass spectrometry Released on December 12,.2016 2017-07-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

SN/T 4675 "Methods for Quality and Safety of Exported Wines" is divided into 30 parts. ---SN/T 4675.1 Determination of glycerol in exported wines; ---SN/T 4675.2 Determination of 2,3-butanediol in exported wines by gas chromatography; ---SN/T 4675.3 Determination of the stable carbon isotope ratio of ethanol in exported wines; ---SN/T 4675.4 Determination of lactic acid in exported wines; --- SN/T 4675.5 Determination of organic acids in exported wines by ion chromatography; ---SN/T 4675.6 Determination of glucose, fructose and sucrose in exported wines; --- SN/T 4675.7 Determination of acetaldehyde in exported wines by gas chromatography-mass spectrometry; --- SN/T 4675.8 Determination of 5-hydroxymethylfurfural in exported wines by liquid chromatography; --- SN/T 4675.9 Determination of diethylene glycol in exported wines by gas chromatography-mass spectrometry; ---SN/T 4675.10 Determination of ochratoxin A in exported wines by liquid chromatography-mass spectrometry/mass spectrometry; ---SN/T 4675.11 Determination of seven anthocyanins in exported wines by ultra performance liquid chromatography; ---SN/T 4675.12 Determination of lysozyme in exported wines by liquid chromatography; --- SN/T 4675.13 Determination of 2,4,6-trichloroanisole residues in exported wines by gas chromatography-mass spectrometry; ---SN/T 4675.14 Determination of natamycin in exported wines by liquid chromatography-mass spectrometry/mass spectrometry; ---SN/T 4675.15 Determination of salicylic acid, dehydroacetic acid and p-chlorobenzoic acid in exported wines by liquid chromatography; ---SN/T 4675.16 Determination of fumaric acid in exported wines by liquid chromatography-mass spectrometry/mass spectrometry; --- SN/T 4675.17 Determination of butyl tin content in exported wines by gas chromatography - mass spectrometry/mass spectrometry; --- SN/T 4675.18 Determination of residual dithiocarbamate in exported wines. ---SN/T 4675.19 Determination of sodium, magnesium, potassium, calcium, chromium, manganese, iron, copper, zinc, arsenic, selenium, silver, cadmium and lead in exported wines; ---SN/T 4675.20 Determination of rare earth elements in exported wines by inductively coupled plasma mass spectrometry; --- SN/T 4675.21 Determination of soluble inorganic salts in exported wines by ion chromatography; ---SN/T 4675.22 Determination of total sulfur dioxide in exported wines; ---SN/T 4675.23 Determination of ammonia nitrogen in exported wines and grape juices - Continuous flow analyzer method; ---SN/T 4675.24 Determination of the export wine Fulin-Shoka index spectrophotometer method; --- SN/T 4675.25 Determination of the color of exported wine CIE1976 (L * a * b *) color space method; ---SN/T 4675.26 Determination of turbidity of exported wines by scattered light method; ---SN/T 4675.27 Determination of alkaline ash in exported wines; ---SN/T 4675.28 Counting bacteria, mold and yeast for exporting wine; ---SN/T 4675.29 Real-time fluorescent PCR method for wine yeast test in exported wine; ---SN/T 4675.30 In the wine, the Bayesian yeast test real-time fluorescent PCR method. This part is part 7 of SN/T 4675. This part is drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents. This part is proposed and managed by the National Certification and Accreditation Administration. This section drafted by. Guangdong Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this section. Xie Li, Wei Xiaoqun, Zeng Guangfeng, Chen Yufang, Chen Jingjia, Jin Meng, Li Shuang, He Jizi, Yu Zhixuan, Li Zhiyong, Liu Qing. Determination of acetaldehyde in exported wine Gas chromatography-mass spectrometry

1 Scope

This part of SN/T 4675 specifies the determination of acetaldehyde content in wine. This section applies to the determination of acetaldehyde content in wine.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply 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 Method summary

After the acetaldehyde in the sample is derivatized with 2,4-dinitrophenylhydrazine, the acetaldehyde 2,4-dinitrophenylhydrazine (CAS No. 1019-57-4) is extracted with cyclohexane. Determined by gas chromatography-mass spectrometry and quantified by external standard method.

4 reagents and materials

Unless otherwise stated, the reagents used were of analytical grade and the water was first-grade water specified in GB/T 6682. 4.1 Sodium hydroxide (NaOH). 4.2 2,4-Dinitrophenylhydrazine (C6H6N4O4, abbreviated as DNPH, CAS No. 119-26-6), purity ≥99%. 4.3 Concentrated hydrochloric acid (HCl) (37.2% aqueous HCl). 4.4 Concentrated sulfuric acid (H2SO4). 4.5 Anhydrous ethanol (C2H6O), chromatographically pure. 4.6 Acetonitrile (C2H3N), chromatographically pure. 4.7 Cyclohexane (C6H12), chromatographically pure. 4.8 5g/L 2,4-dinitrophenylhydrazine solution. Accurately measure 0.5g (accurate to 0.001g) 2,4-dinitrophenylhydrazine (4.2), add 30mL Hydrochloric acid (4.3) and 30 mL of acetonitrile (4.6) were dissolved, then transferred to a 100 mL volumetric flask and made up to the mark with acetonitrile. This solution is now available Currently used. 4.9 12% ethanol solution. Measure 12 mL of absolute ethanol (4.5) in a 100 mL volumetric flask and dilute to the mark with water. 4.10 4mol/L sodium hydroxide solution. Accurately weigh 8g sodium hydroxide (4.1) (accurate to 0.001g) in a beaker, add 40mL Dissolve in water, transfer to a 50mL volumetric flask, and bring up to volume with water. 4.11 25% sulfuric acid solution. Accurately measure 12.5mL concentrated sulfuric acid (4.4) in a beaker with 35mL water, cool and transfer to In a 50 mL volumetric flask, dilute to the mark line with water. 4.12 Standard stock solution of acetaldehyde. 1000mg/L acetaldehyde standard. The solution should be stored in a refrigerator at 0 ° C ~ 4 ° C. 4.13 100mg/L acetaldehyde standard intermediate solution. Add 5mL 12% ethanol solution (4.9) to a 10mL volumetric flask, then accurately Measure 1.0 mL of acetaldehyde standard stock solution (4.12) and dilute to the mark with 12% ethanol solution (4.9). The solution should be between 0 ° C and 4 ° C ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 4675.7-2016_English be delivered?

Answer: Upon your order, we will start to translate SN/T 4675.7-2016_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 SN/T 4675.7-2016_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 4675.7-2016_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+ 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.