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SN/T 4675.17-2016 English PDF

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US$329.00 · In stock
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SN/T 4675.17-2016: Determination of butyltin compounds in wine for export--GC-MS/MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4675.17-2016	329	Add to Cart	3 days	Determination of butyltin compounds in wine for export--GC-MS/MS method	Valid

Similar standards

GB/T 10343 GB/T 394.1 GB 4927 SN/T 4675.32 SN/T 4675.11 SN/T 4675.10

Basic data

Standard ID: SN/T 4675.17-2016 (SN/T4675.17-2016)
Description (Translated English): Determination of butyltin compounds in wine for export--GC-MS/MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X62
Word Count Estimation: 14,144
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 4675.17-2016: Determination of butyltin compounds in wine for export--GC-MS/MS 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 butyltin compounds in wine for export--GC-MS/MS method China's entry-exit inspection and quarantine industry standards Determination of butyltin content in exported wine Gas chromatography-mass spectrometry/mass spectrometry Published on.2016-12-12 2017-07-01 Implementation China The State Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

SN/T 4675 "Method for Analysis of the Quality and Safety of Exported Wines" is divided into 30 sections. ---SN/T 4675.1 Determination of glycerol in wine exports Enzymatic; ---SN/T 4675.2 Determination of 2,3-butanediol in exported wines by gas chromatography; ---SN/T 4675.3 Determination of Stable Carbon Isotope Ratio of Ethanol in Export Wines; ---SN/T 4675.4 Determination of Lactic Acid in Export Wines Enzymatic; ---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 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 wines for liquid chromatography-mass spectrometry/mass spectrometry; ---SN/T 4675.11 Determination of seven anthocyanins in wines exported by ultra-high performance liquid chromatography; ---SN/T 4675.12 Determination of Lysozyme in Export Wines by Liquid Chromatography; ---SN/T 4675.13 Determination of 2,4,6-trichloroanisole residues in exported wines; ---SN/T 4675.14 Determination of natamycin in wines for export - Liquid chromatography-mass spectrometry/mass spectrometry; ---SN/T 4675.15 Determination of salicylic acid, dehydroacetic acid and p-chlorobenzoic acid in wines by liquid chromatography; ---SN/T 4675.16 Determination of fumaric acid in wine exports by liquid chromatography-mass spectrometry/mass spectrometry; ---SN/T 4675.17 Determination of butyltin content in exported wines by gas chromatography-mass spectrometry/mass spectrometry; ---SN/T 4675.18 Determination of dithiocarbamate residues in exported wines. Headspace gas chromatography; ---SN/T 4675.19 Determination of sodium, magnesium, potassium, calcium, chromium, manganese, iron, copper, zinc, arsenic, selenium, silver, cadmium, and lead in wine exports; ---SN/T 4675.20 Determination of rare earth elements in wines exported 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 wines by colorimetric method; ---SN/T 4675.23 Determination of ammonia nitrogen in wine and grape juice exported by continuous flow analyzer method; ---SN/T 4675.24 Determination of the export of the Folin-Shaugha index of the wine by spectrophotometry; ---SN/T 4675.25 Determination of color of exported wines CIE1976 (L*a*b*) color space method; ---SN/T 4675.26 Determination of export turbidity scattered light method; ---SN/T 4675.27 Determination of alkaline ash content of exported wines; ---SN/T 4675.28 Export of wine bacteria, mold and yeast count; ---SN/T 4675.29 Real-time fluorescent PCR assay for wine yeast extraction in wine exports; ---SN/T 4675.30 Bayer splice yeast assay for real-time fluorescence PCR in exported wines. This section is Part 17 of SN/T 4675. This section was drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed and managed by the National Certification and Accreditation Regulatory Commission. This section was drafted by. Qinhuangdao Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China and Guangdong Entry-Exit Inspection Inspection Epidemic Bureau. The main drafters of this section. Cui Zongyan, Ge Na, Liu Xiaomao, Gao Fei, Wang Fei, Qian Yunkai, Li Xiang, Zhong Yali, Wang Haiyang, Zhou Le, Yang Di, Li Xuemin, Cao Yanzhong, Liu Qing, Li Zhiyong. Determination of butyltin content in exported wine Gas chromatography-mass spectrometry/mass spectrometry

1 Scope

This part of SN/T 4675 specifies gas chromatography-mass spectrometry/mass spectrometry for the determination of butyltin in exported wines. This section applies to the determination of monobutyltin, dibutyltin and tributyltin in wine. This section contains two sample preparation methods. the first method. liquid-liquid extraction; the second method. solid-phase microextraction.

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 version (including all amendments) applies to this document. GB/T 6682 Analysis Laboratory Water Specifications and Test Methods First method liquid-liquid extraction

3 Method summary

Butyl-tin compounds in wine samples were ethylated and derivatized in HAc-NaAc buffer solution. Alkyne liquid distribution extraction, purification by solid phase extraction with Florisil columns, elution with n-hexane, concentration and gas chromatography-mass spectrometry/mass spectrometry separation and detection, Internal standard method.

4 Reagents and materials

Unless otherwise stated, the reagents used were of analytical grade and water was a grade of water specified in GB/T 6682. 4.1 glacial acetic acid, superior grade pure. 4.2 Sodium acetate. 4.3 Tetrahydrofuran, chromatographic purity. 4.4 Methanol, chromatographic purity. 4.5 Hexane, chromatographically pure. 4.6 Dichloromethane, chromatographically pure. 4.7 anhydrous sodium sulfate. burning at 650 °C 4h, stored in a sealed container for use. 4.8 acetic acid-sodium acetate (HAc-NaAc) buffer solution (0.2mol/L). using appropriate amount of glacial acetic acid (4.1) and sodium acetate (4.2) and ultrapure water System, adjust pH = 4.5. 4.9 Sodium tetraethylborate standard (NaBet4 abbreviated, formula. C8H20BNa, CAS No. 15523- 24-7). Purity ≥98%. 4.10 Tetraethylethidium borate stock solution (20%, mass/volume ratio). 1.0 g of tetraethylborate sodium standard (4.9), dissolved in an ice water bath The solution was dissolved in 5 mL of tetrahydrofuran (4.3), mixed well, and stored in a refrigerator at -20°C. 4.11 Sodium tetraethylborate working solution (2%, mass/volume ratio), and tetraethylborate sodium stock solution (4.10) were diluted with ultrapure water. Each worker ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 4675.17-2016_English be delivered?

Answer: Upon your order, we will start to translate SN/T 4675.17-2016_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 4675.17-2016_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 4675.17-2016_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.