SN/T 0192-2017 English PDFUS$439.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 0192-2017: Determination of bromopropylate residue in fruits for export Status: Valid SN/T 0192: Historical versions
Basic dataStandard ID: SN/T 0192-2017 (SN/T0192-2017)Description (Translated English): Determination of bromopropylate residue in fruits for export Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: B31 Classification of International Standard: 67.080 Word Count Estimation: 19,159 Date of Issue: 2017-05-12 Date of Implementation: 2017-12-01 Older Standard (superseded by this standard): SN 0192-1993 Quoted Standard: GB/T 6682 Regulation (derived from): State-Quality-Inspection-Accreditation (2017) 228 Issuing agency(ies): General Administration of Customs Summary: This standard specifies the detection and confirmation methods for bromine ester residues in fruits. This standard applies to the detection and confirmation of bromo oxime residues in apple, cherry, lemon, grass carp, pineapple, grape and watermelon. SN/T 0192-2017: Determination of bromopropylate residue 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 bromopropylate residue in fruits for export People's Republic of China entry and exit inspection and quarantine industry standards Replacing SN 0192-1993 Method for detecting residual bromo oxime ester in exported fruits Released on.2017-05-12 2017-12-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces SN 0192-1993 "Test method for bromine ester residues in exported fruits". Compared with SN 0192-1993, in addition to editorial changes, the main technical changes are as follows. --- Increased sample matrix; --- Modified the sample extraction step; --- Modified the sample purification step; --- Change the sample determination packed column to a capillary column; --- Added gas chromatography mass spectrometry confirmation method; --- Sampling steps were omitted. Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Shanghai Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Shi Yizhen, Yang Huiqin, Cheng Jia, Fan Yanli, Zhou Yao, Yi Xionghai, Deng Xiaojun, Zhu Jian. The previous versions of the standards replaced by this standard are. ---SN 0192-1993. Method for detecting residual bromo oxime ester in exported fruits1 ScopeThis standard specifies the detection and confirmation methods for bromine ester residues in fruits. This standard applies to the detection and confirmation of bromo oxime residues in apples, cherries, lemons, strawberries, pineapples, grapes and watermelons.2 Normative referencesThe following documents are indispensable for the application of this document. For dated references, only the dated version applies 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 methods3 method summaryThe residual bromo oxime ester in the sample is extracted with acetonitrile, and after centrifugation and centrifugation, the supernatant is purified by a solid phase extraction column with electron capture detection. Gas chromatographic determination of the detector, external standard method quantification, if necessary, confirmed by gas chromatography-mass spectrometry.4 reagent materialsThe reagents used were of analytical grade unless otherwise stated. 4.1 Acetonitrile. Chromatographically pure. 4.2 Toluene. chromatographically pure. 4.3 n-hexane. chromatographically pure. 4.4 Sodium chloride. 4.5 anhydrous sodium sulfate. burned at 650 ° C for 4 h before use, cooled and stored in a desiccator. 4.6 Acetonitrile-toluene solution (3 1, volume ratio). Take.200 mL of toluene, add 600 mL of acetonitrile, shake and set aside. 4.7 Bromopropylate (C17H16Br2O3, CAS No. 8181-80-1) Standard. Purity greater than or equal to 98%. 4.8 Bromine oxime standard stock solution. Accurately weigh 0.01g (accurate to 0.0001g) bromo oxime standard in 10mL volumetric flask, use The n-hexane was dissolved to prepare a standard stock solution having a concentration of 1.0 mg/mL, and stored at 4 ° C for a shelf life of 3 months. 4.9 bromodecyl ester standard intermediate solution. accurately transfer 1mL standard stock solution to a 10mL volumetric flask, dilute to the scale with n-hexane A standard solution with a concentration of 100 μg/mL is now available. 4.10 Matrix standard working solution. Add a certain volume of bromohydrazide standard solution to the appropriate amount of sample blank matrix extract and mix. Formulated as a matrix standard working solution. The matrix standard working solution should be ready for use. 4.11 Graphitized carbon-amino solid phase extraction column. Graphitized carbon and aminopropyl filler each 0.5g, 6mL, or equivalent. 4.12 anhydrous sodium sulfate column. 7.5 cm × 1.5 cm (id) glass column, containing 5 cm high anhydrous sodium sulfate. 4.13 Organic phase filter. 0.45 μm.5 Instruments and equipment5.1 Gas Chromatograph. equipped with an electron capture (ECD) detector. ...... |
