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SN/T 0602-2016: Determination of pyrazoxyfen residue in plant-originated foodstuffs for export--LC-MS/MS method
Status: Valid SN/T 0602: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 0602-2016 | English | 509 |
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Determination of pyrazoxyfen residue in plant-originated foodstuffs for export--LC-MS/MS method
| Valid |
SN/T 0602-2016
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| SN 0602-1996 | English | 519 |
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3 days [Need to translate]
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Method for the determination of pyrazoxyfen residues in cereals for export
| Obsolete |
SN 0602-1996
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PDF similar to SN/T 0602-2016
Basic data | Standard ID | SN/T 0602-2016 (SN/T0602-2016) | | Description (Translated English) | Determination of pyrazoxyfen residue in plant-originated foodstuffs for export--LC-MS/MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X11 | | Word Count Estimation | 22,267 | | Date of Issue | 2016-08-23 | | Date of Implementation | 2017-03-01 | | Older Standard (superseded by this standard) | SN 0602-1996 | | Regulation (derived from) | State-Quality-Inspection-Certification (2016)438 | | Issuing agency(ies) | General Administration of Customs | SN/T 0602-2016: Determination of pyrazoxyfen residue in plant-originated foodstuffs 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.
(Determination of benzalkonium in food of export origin by liquid chromatography - mass spectrometry/ mass spectrometry)
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Replace SN 0602-1996
Method for determining benzylidene residue in exporting plant-derived foods
Liquid chromatography-mass spectrometry/mass spectrometry
LC-MS/MSmethod
Published on.2016-08-23
2017-03-01 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.
This standard replaces SN 0602-1996 "Test Method for Pizolazole Residues in Export Grains". This standard is related to SN 0602-1996
In addition to the editorial changes, the main technical changes are as follows.
--- The standard scope of application extends from brown rice to rice, brown rice, corn, red beans, cabbage, carrots, and bananas;
--- Change the pizozofen to the generic name benzyloxazole;
--- Pretreatment to acidic acetonitrile extraction, N-propyl ethylene diamine (PSA), octadecyl silane (C18) purification;
---The measuring instrument changed from liquid chromatography to liquid chromatography-mass spectrometry/mass spectrometry;
--- Sampling steps were omitted.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Tianjin Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Li Shujing, Chen Qiyong, Cui Ying, He Jia, Wang Fei, Yan Tingting and so on.
The previous versions of the standards replaced by this standard are.
---SN 0602-1996.
Method for determining benzylidene residue in exporting plant-derived foods
Liquid chromatography-mass spectrometry/mass spectrometry
1 Scope
This standard specifies the ultra-high performance liquid chromatography-mass spectrometry/mass spectrometry method for the determination of benzylidene residues in exported foods.
This standard applies to the determination of benzylidene residues in exported rice, brown rice, corn, red beans, cabbage, carrots and bananas.
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 residual benzoxazole in the sample is extracted with acetonitrile solution containing 1% glacial acetic acid, and the extract is passed through N-propyl ethylenediamine (PSA), octadecyl group.
The silane (C18) was purified by ultra performance liquid chromatography-mass spectrometry/mass spectrometry and quantified by external standard method.
4 reagents and materials
Unless otherwise specified, the reagents used were of analytical grade and the water was the first grade water specified in GB/T 6682.
4.1 Acetonitrile. chromatographically pure.
4.2 Glacial acetic acid. chromatographically pure.
4.3 Formic acid. chromatographically pure.
4.4 Methanol. Chromatographically pure.
4.5 Anhydrous magnesium sulfate. Analytically pure, burned at 650 ° C for 4 h, stored in a desiccator.
4.6 Sodium chloride. Analytical grade.
4.7 0.1% formic acid solution. Dissolve 1 mL of formic acid in water and dilute to 1 L.
4.8 Extraction solvent (1% glacial acetic acid in acetonitrile). Add 1 mL of glacial acetic acid (4.2) to 99 mL of acetonitrile (4.1).
4.9 benzozoxyfen standard. CAS number 71561-11-0, purity greater than 98%.
4.10 Standard stock solution. Accurately weigh the appropriate amount of benzylidene standard (4.9) to the nearest 0.1mg, dissolve, dilute and dilute to acetonitrile
10 mL was prepared as a standard stock solution at a concentration of 1 mg/mL. The solution can be stored for 6 months in the dark at 0 °C ~ 4 °C.
4.11 Standard intermediate solution. Dilute the mixed standard stock solution (4.10) as needed, and prepare a standard intermediate solution of appropriate concentration.
This solution can be stored for 1 month in the dark at 0 °C ~ 4 °C.
4.12 Blank sample matrix solution. Weigh a homogeneous blank sample and follow the steps 7.1 and 7.2.
4.13 Standard working solution. Pipette an appropriate amount of standard intermediate solution (4.11) and dilute with blank sample substrate solution (4.12) to make the solution
Standard working solution, ready to use.
4.14 N-propyl ethylenediamine (PSA) adsorbent. 40μm~100μm.
4.15 Octadecylsilane (C18) adsorbent. 40μm~100μm.
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