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SN/T 4264-2015 English PDF

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US$399.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 4264-2015: Determination of metaldehyde residue in foodstuffs for export. GC-MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4264-2015	399	Add to Cart	3 days	Determination of metaldehyde residue in foodstuffs for export. GC-MS method	Valid

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Basic data

Standard ID: SN/T 4264-2015 (SN/T4264-2015)
Description (Translated English): Determination of metaldehyde residue in foodstuffs for export. GC-MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 17,180
Date of Issue: 2015-05-26
Date of Implementation: 2016-01-01
Quoted Standard: GB/T 6682
Regulation (derived from): State Quality-Inspection-accreditation [2015] No.224
Issuing agency(ies): General Administration of Customs
Summary: This standard provides the food for export metaldehyde residues by gas chromatography - mass spectrometry method. This standard applies to rice, soybeans, spinach, tomato, onion, ginger, apple, Chinese chestnut, tea, pork, liver, fish tetramer assay acetaldehyde residues.

SN/T 4264-2015: Determination of metaldehyde residue in foodstuffs for export. GC-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 metaldehyde residue in foodstuffs for export.GC-MS method People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard Method for detecting residual amount of metaldehyde in exported food Gas chromatography-mass spectrometry GC-MSmethod Released on.2015-05-26 2016-01-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

This standard was 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. Publication of this document The organization is not responsible for identifying these patents. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. China Academy of Inspection and Quarantine. The main drafters of this standard. Li Xiaojuan, Jia Ran, Ma Wei, Chen Dongdong, Dai Hanhui, Peng Tao, Yang Lan, Li Shujuan. Method for detecting residual amount of metaldehyde in exported food Gas chromatography-mass spectrometry

1 Scope

This standard specifies the gas chromatography-mass spectrometry method for the determination of residual acetaldehyde residues in foods. This standard applies to rice, soybean, spinach, tomato, onion, ginger, apple, chestnut, tea, pork, pig liver, fish meat, tetraacetaldehyde residues Determination of the amount of retention.

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

The tetraacetaldehyde in the sample is extracted with a dichloromethane-acetone mixed solvent, purified by solid phase extraction, and detected by gas chromatography-mass spectrometry. Quantification by external standard method.

4 reagents and materials

Unless otherwise stated, all reagents were of analytical grade and water was the primary water specified in GB/T 6682. 4.1 Water. 4.2 Acetone. 4.3 Dichloromethane. 4.4 anhydrous sodium sulfate. burned at 650 ° C for 4 h before use, stored in a desiccator, cooled and set aside. 4.5 Solid phase extraction column. LC-NH2/Envi-carb (500 mg/500 mg, 6 mL), or equivalent. Dissolve with 6mL of dichloromethane before use Liquid activation. 4.6 Tetraacetaldehyde standard (metaldehyde, CAS No. 108-62-3). purity is greater than or equal to 99%. 4.7 Standard stock solution. Accurately weigh the appropriate amount of standard test substance for metaldehyde, and use dichloromethane to prepare a standard storage with a concentration of 100.0mg/L. The preparation solution is stored in the dark at 0 ° C ~ 4 ° C, and the validity period is 3 months. 4.8 Standard working solution. Dilute the standard stock solution to a standard working solution of appropriate concentration with dichloromethane as needed. standard The working solution needs to be used now.

5 Instruments and equipment

5.1 Gas Chromatography-Mass Spectrometry (GC-MS). equipped with an electron bombardment ionization source. 5.2 Analytical balance. Sensitivity is 0.001g and 0.1mg. 5.3 Sample Crusher. 5.4 Oscillator. 5.5 Rotate the evaporator. 5.6 Solid phase extraction unit. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 4264-2015_English be delivered?

Answer: Upon your order, we will start to translate SN/T 4264-2015_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 SN/T 4264-2015_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 4264-2015_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.