SN/T 0280: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 0280-2012 | English | 639 |
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Determination of dicloran residues in fruits for export
| Obsolete |
SN/T 0280-2012
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| SN 0280-1993 | English | 399 |
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Method for the determination of dicloranresidues in fruits for export
| Obsolete |
SN 0280-1993
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PDF similar to SN/T 0280-2012
Basic data | Standard ID | SN/T 0280-2012 (SN/T0280-2012) | | Description (Translated English) | Determination of dicloran residues in fruits for export | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X24 | | Classification of International Standard | 67.080 | | Word Count Estimation | 16,139 | | Older Standard (superseded by this standard) | SN 0280-1993 | | Regulation (derived from) | National Quality Inspection (2012) 237 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the export of fruits Dicloran gas chromatography mass spectrometry. This standard applies to exports of citrus, peach, apple Dicloran residues and confirmation. | SN/T 0280-2012: Determination of dicloran residues in fruits for export---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 dicloran residues in fruits for export
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Replacing SN 0280-1993
Detection fruits for export clonazepam amine residues
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 0280-1993 "clonazepam amine residues in fruits for export."
This standard compared with SN 0280-1993, the main technical changes are as follows.
--- Delete the original standard of Chapter 2;
--- Increased in Chapter 5;
--- Samples extracted by the use of acetone and methylene chloride liquid - liquid extraction to distribution using n-hexane - acetone solution extracted directly;
--- Sample cleanup using the Florisil column graphitized carbon black to solid phase extraction column;
--- Determination by gas chromatography to gas chromatography - mass spectrometry.
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. Li Yongjun, Huang Zhiqiang, Wang Meiling, Yanhong Fei, Zhang Ying.
This standard replaces the standards previously issued as follows.
--- SN 0280-1993.
Detection fruits for export clonazepam amine residues
1 Scope
This standard specifies the fruits for export clonazepam amine gas chromatography - mass spectrometry method.
This standard is applicable to the export of citrus, peach, apple clonazepam amine residues measured and confirmed.
2 Method summary
Sample residual chlorine Nitramine acetone and n-hexane (12) shaking extraction, graphite, carbon black solid-phase extraction (SPE), and concentrated eluent
After constant volume, gas chromatography - mass spectrometer and validation, external standard.
3 Reagents and materials
Unless otherwise specified, all reagents were of analytical grade, water is distilled water.
3.1 hexane. redistilled.
3.2 acetone. redistilled.
3.3 sodium chloride.
3.4 anhydrous sodium sulfate. After burning 650 ℃ 4h, the dryer use.
3.5 hexane - acetone (21 volume). Take hexane 100mL, was added 50mL of acetone, and mix.
3.6 n-hexane - acetone (11 volume). n-hexane to take 100mL, 100mL acetone was added, and mix.
3.7 clonazepam amine standard substance (Dicloran, C6H4Cl2N2O2, CAS number. 99-30-9). purity of greater than 99%.
3.8 standard stock solution. accurately weigh the right amount of chlorine Nitramine standard substance with acetone formulated into 1000μg/mL standard stock solution,
And then diluted to the appropriate standard working solution with n-hexane according to testing requirements. Standard solution stored in the dark for three months at 4 ℃.
3.9 graphitized carbon black SPE. 3mL, 125mg, or equivalent person.
4 instruments and equipment
4.1 Gas chromatography - mass spectrometry with chemical ionization (CI source).
4.2 Organization mashed machines.
4.3 Analysis of balance. a sense of the amount of 0.001g.
4.4 Vortex device.
4.5 Solid phase extraction unit with a vacuum pump.
4.6 nitrogen blowing instrument.
4.7 low-speed centrifuge. 5000r/min.
4.8 Glass tube. 15mL.
4.9 Scale tube. 15mL.
4.10 micro syringe. 10μL.
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