SN/T 0591-2016 English PDF

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SN/T 0591-2016: Determination of dioxathion residues in cerals and oil seeds for export--GC and GC-MS method
Status: Valid

SN/T 0591: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 0591-2016	259	Add to Cart	3 days	Determination of dioxathion residues in cerals and oil seeds for export--GC and GC-MS method	Valid
SN 0591-1996	559	Add to Cart	4 days	Method for the determination of dioxathion residues in cereals and oil seeds for export	Obsolete

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Basic data

Standard ID: SN/T 0591-2016 (SN/T0591-2016)
Description (Translated English): Determination of dioxathion residues in cerals and oil seeds for export--GC and GC-MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X11
Word Count Estimation: 11,185
Date of Issue: 2016-06-28
Date of Implementation: 2017-02-01
Older Standard (superseded by this standard): SN 0591-1996
Regulation (derived from): State-Quality-Inspection-Accredidation [2016] No.318
Issuing agency(ies): General Administration of Customs

SN/T 0591-2016: Determination of dioxathion residues in cerals and oil seeds for export--GC and 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 dioxathion residues in cerals and oil seeds for export - GC and GC-MS method People's Republic of China Entry - Exit Inspection and Quarantine Industry Standard Replacing SN 0591-1996 Export of cereals and oilseeds in the amount of dioxathion residues Determination of gas chromatography and gas chromatography - mass spectrometry Determination ofdioxathionresiduesinceralsandoilseedsforexport- GCandGC-MSmethod 2016-06-28 released 2017-02-01 implementation People's Republic of China State Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces SN 0591-1996 "Method for the determination of dioxathion residues in export grain and oilseeds". Compared with SN 0591-1996, the main technical changes are as follows. --- standard name from the "export grain and oilseed in the amount of dioxathion residues test method" revised to "export grain and oil seeds in the dioxane Determination of phosphorus residues by gas chromatography and gas chromatography - mass spectrometry "; - to expand the scope of application of standard testing; --- cut the sampling part; Improved sample pretreatment technology; --- increased gas chromatography - mass spectrometry confirmation method; - reduce the detection limit, and for different detection objects, given the different matrix to add different concentrations of standard material recovery range. Please note that some of the contents of this document may involve patents. The issuer of this document does not assume responsibility for the identification of these patents. This standard is proposed and approved by the National Certification and Accreditation Administration Committee. The drafting unit of this standard. Shandong Entry - Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Wang Wei, Gao Yusheng, Wang Haibo, Cui Xiaohui, Chen Bing, Li Xiuyong. This standard replaced the previous version of the standard release. --- SN 0591-1996. Export of cereals and oilseeds in the amount of dioxathion residues Determination of gas chromatography and gas chromatography - mass spectrometry

1 Scope

This standard specifies the preparation of samples for the detection of dioxathion residues in grain and oilseeds, gas chromatography and gas chromatography-mass spectrometry And confirmatory methods. This standard applies to rice, wheat, barley, corn, sorghum, mung bean, red beans, peanuts, soybeans, rapeseed residues in the determination of dioxathion Test and confirm.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 6682 Analytical laboratory water specifications and experimental methods

3 principle

The samples were immersed in water and extracted with acetonitrile. The samples were purified by solid phase extraction (SPE) and confirmed by gas chromatography or gas chromatography-mass spectrometry. External standard method.

4 reagents and materials

Unless otherwise specified, all reagents are analytical grade and water is a secondary water specified in GB/T 6682. 4.1 acetonitrile. pure chromatography. 4.2 n-hexane. pure chromatography. 4.3 Acetone. Chromatographic pure. 4.4 toluene. pure chromatography. 4.5 Sodium chloride. 4.6 anhydrous sodium sulfate. 650 ℃ burning 4h, stored in a dryer, cooling and standby. 4.7 acetonitrile - toluene solution (3 1, volume ratio). measure 300mL of acetonitrile and 100mL toluene, mix. 4.8 Acetone-n-Hexane (1 1, volume ratio). Measure 100 mL of acetone and 100 mL of n-hexane. 4.9 Dioxathion standard. Purity. 97.0%. Molecular formula. C12H26O6P2S4, CAS. 78-34-2. 4.10 Dioxazosulfuride standard stock solution. accurately weighed dioxin sulfide standard 0.01031g, dissolved with acetone to set capacity to 50mL, dubbed 200mg/L of the standard stock solution, 0 ℃ ~ 4 ℃ refrigerator stored in the dark, valid for 6 months. 4.11 Dioxazosine standard intermediate. according to the need to take the appropriate volume of dioxathion standard stock solution, with acetone - n-hexane (4.8) preparation 2.0mg/L standard intermediate liquid, 0 ℃ ~ 4 ℃ refrigerator stored in the dark, valid for 1 month. 4.12 Dioxazophos standard working solution. according to the needs of the standard solution of dioxathion standard with acetone - n-hexane solution prepared into a standard working solution, The working fluid is now available. 4.13 C18 solid phase extraction column..2000mg/12mL or equivalent. ......

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