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SN/T 0533-2016 English PDF

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SN/T 0533-2016: Method for the determination of ethoxyquin residue in fruits for export
Status: Valid

SN/T 0533: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
SN/T 0533-2016English509 Add to Cart 4 days [Need to translate] Method for the determination of ethoxyquin residue in fruits for export Valid SN/T 0533-2016
SN 0533-1996English399 Add to Cart 3 days [Need to translate] Method for the determination of ethoxyquin residues in fruits for export Obsolete SN 0533-1996

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Basic data

Standard ID SN/T 0533-2016 (SN/T0533-2016)
Description (Translated English) Method for the determination of ethoxyquin residue in fruits for export
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard X24
Word Count Estimation 22,219
Date of Issue 2016-12-12
Date of Implementation 2017-07-01
Older Standard (superseded by this standard) SN 0533-1996
Regulation (derived from) State-Quality-Inspection-Accredidation (2016) No.590
Issuing agency(ies) General Administration of Customs

SN/T 0533-2016: Method for the determination of ethoxyquin 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.
Method for the determination of ethoxyquin residue in fruits for export China's entry-exit inspection and quarantine industry standards Replacing SN 0287-1993, SN 0533-1996 Determination of Ethoxyquine Residues in Export Fruits Published on.2016-12-12 2017-07-01 Implementation China The State 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 0287-1993 "Liquid Chromatography Method for the Examination of Ethoxyquin Residues in Export Fruits" and SN 0533-1996 "Examination method of ethoxyquinequinoline residues in export fruits", compared with SN 0287-1993, SN 0533-1996, except editorial modification The main technical changes outside are as follows. --- change the standard name; --- Using liquid chromatography-fluorescence detection and liquid chromatography-mass spectrometry/mass spectrometry, instead of the original fluorescence spectrophotometry and liquid chromatography-violet External detection method; --- Expand the applicable matrix of the detection range to apples, pears, peaches, plums, and citrus; --- Modified sample preparation method; --- Lowered method determination lower limit. Please note that some of the contents of this document may involve patents. The issuing agency of this document does not assume responsibility for identifying these patents. This standard is proposed and managed by the National Certification and Accreditation Regulatory Commission. This standard was drafted by. Zhejiang Research Institute of Inspection and Quarantine. The main drafters of this standard. Huang Chaoqun, Xie Wen, Lou Chengjie, Chen Lingling, Zhang Wenhua, Tong Yu, Wu Juan. The previous versions of the standards replaced by this standard are. ---SN 0287-1993; ---SN 0533-1996. Determination of Ethoxyquine Residues in Export Fruits

1 Scope

This standard specifies high performance liquid chromatography and liquid chromatography-mass spectrometry/mass spectrometry detection methods for the determination of ethoxyquin in export fruits. This standard applies to the determination of ethoxyquin in exports of apples, pears, peaches, plums, and citrus.

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 version (including all amendments) applies to this document. GB/T 6682 Analysis Laboratory Water Specifications and Test Methods First method high performance liquid chromatography

3 Method summary

Samples were prepared using different methods for different fruits, and extracted with n-hexane as the solvent. After concentration and constant volume, high performance liquid chromatography-fluorescence was performed. Method determination, external standard method.

4 Reagents and materials

Unless otherwise specified, the reagents used are all chromatographically pure and the water used is a grade one water according to GB/T 6682. 4.1 Acetonitrile. 4.2 Methanol. 4.3 Hexane. 4.4 Vitamin C. analytically pure. 4.5 Standard material. ethoxyquin, C14H19NO, CAS accession number 91-53-2, purity greater than 97.5%. 4.6 Standard stock solution. Accurately weigh the appropriate amount of standard substance (4.5), dissolve it with methanol and make it to volume, and prepare a solution with a concentration of.200 μg/mL. The standard stock solution, 0 °C ~ 4 °C preservation, valid for 6 months. 4.7 Standard working solution. According to requirements, standard stock solution (4.6) is diluted with methanol to a standard working solution with appropriate concentration, 0°C~4°C save. 4.8 Microporous membrane. ≤0.45μm, organic phase.

5 Instruments and Equipment

5.1 HPLC. equipped with a fluorescence detector. 5.2 Organize the masher. 5.3 Analytical balance. Sensitivity 0.0001g and 0.01g. 5.4 Vortex mixer.

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