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SN/T 4522-2016: Determination of residue of ethephon in tomato products for export--LC-MS/MS method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 4522-2016 | English | 209 |
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Determination of residue of ethephon in tomato products for export--LC-MS/MS method
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SN/T 4522-2016
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Basic data | Standard ID | SN/T 4522-2016 (SN/T4522-2016) | | Description (Translated English) | Determination of residue of ethephon in tomato products for export--LC-MS/MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X26 | | Word Count Estimation | 9,921 | | Date of Issue | 2016-06-28 | | Date of Implementation | 2017-02-01 | | Regulation (derived from) | State-Quality-Inspection-Accredidation [2016] No.318 | | Issuing agency(ies) | General Administration of Customs | SN/T 4522-2016: Determination of residue of ethephon in tomato products for export--LC-MS/MS method
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Determination of residue of ethephon in tomato products for export - LC-MS/MS method
People's Republic of China Entry - Exit Inspection and Quarantine Industry Standard
Determination of ethephon residue in export tomato products
Liquid chromatography - mass spectrometry/mass spectrometry
Determination ofresidaeofethephonintomatoproductsforexport-
LC-MS/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.
Please note that some of the contents of this document may involve patents. The release of this document
The Agency does not assume responsibility for identifying these patents.
This standard is proposed and approved by the National Certification and Accreditation Administration Committee.
This standard is responsible for the drafting unit. Xinjiang Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Su Min, Gong Zhiguo, Yu Jiaojie, Zhao Hui, Qi Dongqin, Wang Jingjing, Li Xiaoyan, Fang Fang, Li Shiyu.
Determination of ethephon residue in export tomato products
Liquid chromatography - mass spectrometry/mass spectrometry
1 Scope
This standard specifies the determination and confirmation of ethephon residues in tomato products by liquid chromatography-mass spectrometry/mass spectrometry.
This standard is applicable to the determination and confirmation of ethephon residues in tomato and tomato paste.
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 test methods
3 method summary
The ethephon in the sample was extracted with acetone-0.1% formic acid (10 90, volume ratio), purified by amino solid phase extraction column, liquid chromatography-mass
Spectral/mass spectrometry, external standard method.
4 reagents and materials
Unless otherwise stated, the reagents used were of analytical grade and the water was a Grade I water complying with GB/T 6682.
4.1 methanol. pure chromatography.
4.2 acetonitrile. pure chromatography.
4.3 Acetone.
4.4 Formic acid. Chromatographic pure.
4.5 acetic acid.
4.6 Ammonia.
4.7 0.1% formic acid. 1 mL formic acid dissolved in water, and set to 1L.
4.8 Acetone - 0.1% formic acid (10 90, volume ratio). Take 50mL of acetone and 450mL 0.1% formic acid, mix well.
4.9 5% acetic acid. 5mL acetic acid dissolved in water, and set to 100mL.
4.10 Ammonia-Methanol (10 90, volume ratio). Measure 20 mL of ammonia and 180 mL of methanol and mix well.
4.11 ethephon reference material. C2H6ClO3P, CAS. 16672-87-0, purity of 99.5%.
4.12 standard stock solution. accurately weighed the right amount of ethephon standard, dissolved in methanol, prepared into a standard concentration of 1.0mg/mL reserve
Solution, -18 ℃ dark preservation.
4.13 standard intermediate solution. accurately absorb ethephon standard stock solution, diluted with 5% acetic acid to a concentration of 10.0μg/mL, 0 ℃ ~ 4 ℃ to avoid
Light preservation.
4.14 Substrate blank solution. A solution obtained by treating the blank sample with different substrates according to steps 7.1, 7.2.
4.15 matrix standard working fluid. according to the need to accurately absorb a certain amount of standard intermediate solution (4.13), with matrix blank solution (4.14) preparation
Into the appropriate concentration of the standard working solution, is now available with.
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