SN/T 0647: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 0647-2013 | English | 639 |
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Determination of maleic hydrazide residues in nuts and nut products for export. HPLC method
| Obsolete |
SN/T 0647-2013
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| SN 0647-1997 | English | 639 |
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Method for the determination of maleic hydrazide residues in nuts and nut products for export. Spectrophotometry
| Obsolete |
SN 0647-1997
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PDF similar to SN/T 0647-2013
Basic data | Standard ID | SN/T 0647-2013 (SN/T0647-2013) | | Description (Translated English) | Determination of maleic hydrazide residues in nuts and nut products for export. HPLC method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X24 | | Classification of International Standard | 67.080.10 | | Word Count Estimation | 16,151 | | Older Standard (superseded by this standard) | SN 0647-1997 | | Quoted Standard | GB/T 6682 | | Regulation (derived from) | AQSIQ notification issued in 2013 on the first batch of 179 entry-exit inspection and quarantine of industry standards; industry standard for filing Notice 2013 No. 9 (No. 165 overall) | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the definition of dangerous goods exported flexible intermediate bulk containers, requirements, sampling, testing and unqualified disposal. This standard applies to the export of dangerous goods - Performance tests of flexible inte | SN/T 0647-2013: Determination of maleic hydrazide residues in nuts and nut products for export. HPLC method
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Determination of maleic hydrazide residues in nuts and nut products for export.HPLC method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Replacing SN 0647-1997
Nuts and nut products export maleic hydrazide residues
HPLC
Issued on. 2013-03-01
2013-09-16 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 0647-1997 "export of nuts and nut products maleic hydrazide residues spectrophotometric method." The standard
Compared with the quasi SN 0647-1997, in addition to editorial changes outside the main technical changes are as follows.
--- Standard name changed to "export nuts and nut products for maleic hydrazide residues HPLC";
--- Method increases the scope of chestnut and its products;
Before --- sample processing method by the distillation method to extract purification method;
--- Measured by the spectrophotometric method to HPLC.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Shandong CIQ.
The main drafters of this standard. Cong Wei Hung, COLLECE YANG Lijun, Wang Jing, when Wen Chun, Hu Qiaoru, Liu Yumin, Cuifeng Jie, HOU-wide, ultra-Cong.
This standard superseded standard previously issued as follows.
--- SN 0647-1997.
Nuts and nut products export maleic hydrazide residues
HPLC
1 Scope
This standard specifies the sample preparation and high performance liquid chromatographic method outlet nuts and nut products maleic hydrazide residues in detection.
This standard applies to the determination of products and walnuts, chestnuts and articles maleic hydrazide residues.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated document applies to this article
Member. For undated references, the latest edition (including any amendments) applies to this standard.
Laboratory use specifications and test methods GB/T 6682 Analysis
3 Method summary
After the sample hexane, and extracted with methanol, and then purified by C18 column HPLC - UV detector, external standard method
Quantified.
4 Reagents and materials
Unless otherwise specified, the reagents were of analytical grade water as a water GB/T 6682 stipulated.
4.1 Methanol. chromatographically pure.
4.2 hexane. chromatographically pure.
4.3 ammonium acetate.
4.4 sodium hydroxide.
4.5 ammonium acetate solution (0.02mol/L). Weigh 1.54g ammonium acetate, add water to 1000mL, through 0.45μm membrane before use
filter.
4.6 Sodium hydroxide solution (0.01mol/L). Weigh 0.40g of sodium hydroxide, add water to 1000mL.
4.7 Suckercides Dan standard substance (Maleichydrazide, C4H4N2O2, CASN o. 123-33-1). purity of greater than 99.9%.
4.8 maleic hydrazide standard stock solution. accurately weighed amount Suckercides Dan standards, dissolve and dilute with 0.01mol/L sodium hydroxide solution (4.6)
Release to a concentration of 1mg/mL standard stock solution.
4.9 maleic hydrazide standard solution. draw 1.0mL standard stock solution (4.8), diluted with 0.01mol/L sodium hydroxide solution (4.6)
Constant volume to 100mL, formulated at a concentration of 10mg/L of standard working solution.
4.10 microporous membrane. 0.45μm, organic phase.
4.11 SPE. C18 cartridge, 3mL, 500mg, or equivalent person. Followed by 4mL methanol and 4mL0.01mol/L hydroxide
Sodium solution (4.6) alternate after activation.
5. Apparatus
5.1 High performance liquid chromatograph. with UV or diode array detector.
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