SN/T 0707-2014 English PDF

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SN/T 0707-2014: Determination of dinitrocresol residues in foods for export. LC-MS/MS method
Status: Valid

SN/T 0707: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 0707-2014	519	Add to Cart	4 days	Determination of dinitrocresol residues in foods for export. LC-MS/MS method	Valid
SN 0707-1997	519	Add to Cart	4 days	Method for the determination of dinitrocresol residues in meats and meat products for export	Obsolete

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Basic data

Standard ID: SN/T 0707-2014 (SN/T0707-2014)
Description (Translated English): Determination of dinitrocresol residues in foods for export. LC-MS/MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 20,235
Older Standard (superseded by this standard): SN 0707-1997
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 sample preparation HPLC food for export Dinitromethylene cresol and - mass spectrometry/mass spectrometry. This standard applies to chicken, pork, liver, beef, beef liver, beef kidney, rice, corn, wheat, soybeans, apples and ca

SN/T 0707-2014: Determination of dinitrocresol residues in foods for export. LC-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.
(Food exports dinitramide cresol Residues - Determination - liquid chromatography - mass spectrometry/mass spectrometry) People's Republic of China Entry-Exit Inspection and Quarantine Standards Replacing SN 0707-1997 Determination of food for export dinitro-p-cresol residues Liquid chromatography - mass spectrometry/mass spectrometry 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 0707-1997 "export of meat and meat products dinitro-p-cresol residues in." This standard compared with SN 0707-1997 main changes are as follows. --- Modify the standard Chinese name; --- Original standard configuration has been modified; --- By the scope of the standard increase of chicken meat, liver, beef, beef liver, beef kidney, rice, corn, wheat, soybeans, apples and Cabbage; --- According to the major trading countries Dinitromethylene cresol limited demand re-enacted the lower limit of detection; --- Liquid chromatography - mass spectrometry/mass spectrometry instead of the original standard gas chromatography; --- Increased confirmatory method. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. Heilongjiang People's Republic of China Exit Inspection and Quarantine. The main drafters of this standard. Kang celebrate, Wu Yan, Wei Dongxu, Xuyi Gang, to Shen Rui, Liu, Yang Chang-chih, Zhang Ying, ZHAO Yu, DATONG. This standard replaces the standards previously issued as follows. --- SN 0707-1997. Determination of food for export dinitro-p-cresol residues Liquid chromatography - mass spectrometry/mass spectrometry

1 Scope

This standard specifies the sample preparation HPLC food for export Dinitromethylene cresol and - mass spectrometry/mass spectrometry. This standard applies to chicken, pork, liver, beef, beef liver, beef kidney, rice, corn, wheat, soybeans, apples and cabbage dinitro-p-cresol residues Determination of the amount of the stay and confirmed.

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

Dinitro-cresol in the sample residue with methanol - TCA extraction solution homogenized, after OasisHLB solid phase extraction (SPE), with liquid Chromatography - mass spectrometry/mass spectrometer, 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 acetonitrile. chromatography. 4.2 Methanol. chromatographically pure. 4.3 TCA. 4.4 trichloroacetic acid solution (10%). weigh 100.0g TCA, dissolved in water, and dilute to 1L. 4.5 -10% trichloroacetic acid solution in methanol (19 volume). amount of 900mL10% trichloroacetic acid solution (4.4), was added 100mL A Alcohol, and mix. 4.6 acetonitrile - water (28 volume). Measure 20mL of acetonitrile, was added 80mL of water, and mix. 4.7 Methanol - water (28 volume). Measure 20mL of methanol, was added 80mL of water, and mix. 4.8 dinitro-p-cresol standard substance. C7H6N2O5, CASN o.543-52-1, purity of greater than or equal to 99.0%. 4.9 standard stock solution. accurately weighed amount of reference material dinitro-p-cresol, preparation of standard stock with acetonitrile to a concentration of 1000μg/mL of Preparation of the solution, 0 ℃ ~ 4 ℃ stored in a refrigerator for a period of six months. 4.10 standard solution. Standard stock solution Pipette a volume of accurate, if necessary with acetonitrile - a dilute aqueous solution (4.6) to the appropriate concentration Standard working solution degrees, 0 ℃ ~ 4 ℃ stored in a refrigerator for a period of one month. 4.11 OasisHLB solid phase extraction (SPE) columns. 60mg, 3mL or performance are quite. Before using successively with methanol and 1mL, 3mL water activation. 4.12 microporous membrane. 0.22μm, organic. ......

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