SN/T 0645-2014 English PDF

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SN/T 0645-2014: Determination of diuron residues in meat and meat products for export. Liquid chromatography method
Status: Valid

SN/T 0645: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 0645-2014	389	Add to Cart	3 days	Determination of diuron residues in meat and meat products for export. Liquid chromatography method	Valid
SN 0645-1997	519	Add to Cart	4 days	Method for the determination of diuron residues in meats and meat products for export	Obsolete

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Basic data

Standard ID: SN/T 0645-2014 (SN/T0645-2014)
Description (Translated English): Determination of diuron residues in meat and meat products for export. Liquid chromatography method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X22
Classification of International Standard: 67.120.10
Word Count Estimation: 15,158
Older Standard (superseded by this standard): SN 0645-1997
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 method of liquid chromatography export meat and meat products diuron residues. This Standard applies to beef, canned luncheon meat, chicken meatballs, lamb, donkey in the determination of diuron Long residues.

SN/T 0645-2014: Determination of diuron residues in meat and meat products for export. Liquid chromatography 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 diuron residues in meat and meat products for export.Liquid chromatography method People's Republic of China Entry-Exit Inspection and Quarantine Standards Replacing SN 0645-1997 Exports of meat and meat products Determination of diuron Long Residue Liquid chromatography Issued on. 2014-01-13 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 replaces SN 0645-1997 "export of meat and meat products diuron residues in." Compared with SN 0645-1997, the main technical changes are as follows. --- The original standard name "export meat and meat products diuron residues in" to "export meat and meat products diuron Determination of the residual liquid chromatography "; --- Cancel the original standard sampling and sample preparation section; --- The original scope of application of the revised standard is. beef, canned luncheon meat, chicken meatballs, lamb, donkey; --- Sample pretreatment conditions were revised; --- Of liquid chromatography conditions were revised. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Shandong CIQ. The main drafters of this standard. Li Junmin, Bai Xinghua, He Tongxin, into yellow, Gengjin Pei Yan Qiucheng. This standard replaces the standards previously issued as follows. --- SN 0645-1997. Exports of meat and meat products Determination of diuron Long Residue Liquid chromatography

1 Scope

This standard specifies the method for liquid chromatography export meat and meat products diuron residues. This standard applies to beef, canned luncheon meat, chicken meatballs, lamb, donkey in the determination of diuron Long residues.

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

Sample remaining diuron methanol - acetonitrile (11, volume ratio) extraction by liquid-liquid partition and neutral alumina column purified, Determined by high performance liquid chromatography with UV detection, external standard.

4 Reagents and materials

Unless otherwise specified, the reagents were of analytical grade water as a water GB/T 6682 regulations. 4.1 Methanol. HPLC grade. 4.2 acetonitrile. HPLC grade. 4.3 chloroform. The all-glass apparatus redistilled. 4.4 petroleum ether. boiling range 60 ℃ ~ 90 ℃, after all-glass apparatus redistilled. 4.5 anhydrous sodium sulfate. After burning 650 ℃ 4h, storage desiccator. 4.6 sodium chloride. 4.7 methanol - acetonitrile (11 volume). amount of an equal volume of methanol and acetonitrile, mixed well and reserve. 4.8 methanol - acetonitrile - water (70525, volume ratio). by volume of methanol, acetonitrile and water, mixed thoroughly take 70.5.25 volume ratio, and Degassed, filtered and set aside. 4.9 with saturated sodium chloride solution. adding an excess of sodium chloride in water, heated and boiled for 10min, until no more sodium chloride dissolved, cooled To room temperature. The cooled solution was filtered with filter paper, that is, saturated sodium chloride solution. 4.10 diuron (diuron) standard purity greater than or equal to 98.0%. 4.11 Standard stock solution (100mg/L). Weigh 10.0mg diuron standards, was dissolved in methanol - acetonitrile (4.7), and transferred 100mL flask with methanol - acetonitrile (4.7) to volume, mix, 0 ℃ ~ 4 ℃ preservation. 4.12 standard working solution. If necessary, draw a certain amount of standard stock solution (4.11), with methanol - into a series of diluted aqueous solution (4.8) - acetonitrile Standard working solution. 4.13 neutral alumina column. 6mL, 1000mg, or equivalent person. Before use 5mL methanol - acetonitrile - water (4.8) Pre-rinse. 4.14 over anhydrous sodium Column. 3g over anhydrous sodium sulfate and placed in a glass column tube. ......

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