SN/T 0655-2012 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 0655-2012	839	Add to Cart	4 days	Determination of dimethipin residues in foods for export	Obsolete
SN 0655-1997	559	Add to Cart	4 days	Method for the determination of dimethiphin residues in vegetables and oil seeds for export	Obsolete

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Basic data

Standard ID: SN/T 0655-2012 (SN/T0655-2012)
Description (Translated English): Determination of dimethipin residues in foods for export
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 21,231
Older Standard (superseded by this standard): SN 0655-1997
Quoted Standard: GB/T 6682
Regulation (derived from): National Quality Inspection (2012) 237
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the rice, white Levin, citrus, potatoes, tea, chestnut, chicken, fish, pork, beef, liver, honey, eggs, milk, wheat C residues enemy gas chromatographic method. This standard applies to rice, cabbage, citrus, potatoes, tea, chestnut

SN/T 0655-2012: Determination of dimethipin residues in foods for export

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Determination of dimethipin residues in foods for export People's Republic of China Entry-Exit Inspection and Quarantine Standards Replacing SN 0655-1997 Detection wheat propylene residues in food for export enemy Issued on. 2012-05-07 2012-11-16 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 0655-1997 "export vegetables and oilseeds in enemy propylene residues in wheat." This standard compared with SN 0655-1997, the main technical changes are as follows. --- Detect objects expand food exports; --- Delete the original standard sample content (SN 0655-1997 "2 sampling and sample preparation"; --- The detector consists of a flame spectrophotometer detector to electron capture detector (SN 0655-1997 "3.3.1", this standard "5.1"); --- Increased by gas chromatography - mass spectrometry confirmed the contents (of the standard "7.3.3.2"). This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Hunan Exit Inspection and Quarantine. The main drafters of this standard. Yanhong Fei, Zhang Ying, Huang Zhiqiang, Li Yongjun, Wang Meiling. This standard replaces the standards previously issued as follows. --- SN 0655-1997. Detection wheat propylene residues in food for export enemy

1 Scope

This standard specifies the rice, cabbage, citrus, potatoes, tea, chestnuts, chicken, fish, pork, beef, liver, honey, eggs, milk The enemy wheat prop residual amount of gas chromatographic method. This standard applies to rice, cabbage, citrus, potatoes, tea, chestnuts, chicken, fish, pork, beef, liver, honey, eggs, milk Determination of the enemy wheat propylene residues and confirmation.

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

Samples with methanol - water mixed solvent shaking extraction, liquid-liquid extraction with n-hexane and chloroform - liquid distribution, the series through florisil Soil and neutral alumina solid phase extraction (SPE) with electron capture detector equipped with a gas chromatograph were determined by gas chromatography - mass spectrometry indeed Cards, external standard.

4 Reagents and materials

Unless otherwise specified, all reagents were of analytical grade water as a water GB/T 6682 regulations. 4.1 Methanol. chromatographically pure. 4.2 hexane. pure class distinctions. 4.3 chloroform. chromatography. 4.4 acetone. chromatography. 4.5 methanol - water (91 volume). accurate Pipette 90mL of methanol (4.1) and 10mL of water and mix well. 4.6 acetone - chloroform solution (8100, volume ratio). exact Pipette 8mL acetone (4.4) and 100mL chloroform (4.3) Mixed Uniform. 4.7 sodium chloride. 4.8 10% sodium chloride solution. Accurately weigh 10g of sodium chloride (4.7) adding an appropriate amount of water in a beaker was dissolved and transferred to 100mL volumetric flask, To the mark, shake. 4.9 anhydrous sodium. Before using ignited at 650 ℃ 4h, stored in a desiccator, cool reserve. 4.10 enemy wheat standards propionate (Dimethipin, C6H10O4S2, CAS number. 55290-64-7). purity of greater than or equal to 99%. 4.11 standard stock solution. Weigh accurately 50mg enemy wheat prop pesticide standards (accurate to 0.1mg) in 50mL brown volumetric flask with acetone Dissolve and dilute to the mark, shake, formulated at a concentration of 1000μg/mL standard stock solution stored in the dark below 4 ℃. 4.12 intermediate standard solution. Imbibe 1.0mL standard stock solution in 100mL brown volumetric flask, and dilute with acetone to dissolve Scale, formulated at a concentration of 1000μg/mL standard intermediate solution, stored in the dark below 4 ℃. ......

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