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SN/T 4524-2016: Determination of six kinds of ergot alkaloids in cereals for export--LC-MS/MS method
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| SN/T 4524-2016 | English | 229 |
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Determination of six kinds of ergot alkaloids in cereals for export--LC-MS/MS method
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SN/T 4524-2016
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Basic data | Standard ID | SN/T 4524-2016 (SN/T4524-2016) | | Description (Translated English) | Determination of six kinds of ergot alkaloids in cereals for export--LC-MS/MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X11 | | Word Count Estimation | 10,119 | | 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 4524-2016: Determination of six kinds of ergot alkaloids in cereals for export--LC-MS/MS method
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Determination of six species of ergot alkaloids in cereals for export - LC-MS/MS method
People's Republic of China Entry - Exit Inspection and Quarantine Industry Standard
Determination of six ergot alkaloids in export grain
Liquid chromatography - mass spectrometry/mass spectrometry
Determination ofsixkindsofergotalkaloidsincerealsforexport-
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.
This standard is proposed and approved by the National Certification and Accreditation Administration Committee.
The drafting of this standard. China Inspection and Quarantine Science Research Institute, the People's Republic of China Xiamen Entry-Exit Inspection and Quarantine Bureau.
The main drafters of this standard. Sun Li, Jiang Pingping, Zeng Qi, Li Li, Chu Xiaogang.
Determination of six ergot alkaloids in export grain
Liquid chromatography - mass spectrometry/mass spectrometry
1 Scope
This standard specifies the export of cereals in ergot alkaloids, ergotrine, ergotamine, ergocaline, ergocaline, ergocaline
Determination of liquid chromatography - mass spectrometry/mass spectrometry.
This standard applies to wheat (barley, wheat, oats, rye), rice, sorghum and corn in ergot alkaloids, ergot alkalis, ergotamine, ergot
Determination and confirmation of caustic soda, ergocaline and ergocaline.
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 experimental methods
3 method summary
The samples were extracted with a mixed solution of acetonitrile/ammonium carbonate and the extract was purified by a multifunctional purification column. The liquid chromatography-mass spectrometry/mass spectrometer
Confirmation, external standard method. In view of the method involved in the ergot at room temperature conditions, easy to racemate as epimers, it is recommended to minimize the front
Time.
4 reagents and materials
Unless otherwise specified, the reagents used are analytical grade, water is the primary water specified in GB/T 6682.
4.1 Ammonium carbonate. Chromatographic purity.
4.2 acetonitrile. pure chromatography.
4.3 Ammonium carbonate solution (3mmol/L). Weigh 0.20g of ammonium carbonate, dissolved in water and set to 1L.
4.4 acetonitrile - ammonium carbonate mixed solution (84 16). amount of 160mL ammonium carbonate solution (4.3), acetonitrile volume to 1L.
4.5 ergot alkaloids, ergotamine, ergot, ergotocriptine, ergocaline, ergocaline standard substance. purity ≥ 98%.
4.6 ergot base standard stock solution (100mg/L). were given 10.0mg of ergot alkaloid reference substance (4.5), dissolved with acetonitrile and transfer
To 100mL volumetric flask, add acetonitrile diluted to the mark, mix, save at -20 ℃.
4.7 Mixed standard intermediate solution (1mg/L). accurate removal of the ergot base standard stock solution (4.6) 1mL in 100mL volumetric flask,
Diluted with acetonitrile to the mark, mix, save at -20 ℃.
4.8 Mixing standard working solution. If necessary, absorb the appropriate amount of mixed standard intermediate solution (4.7) before use, mix with ammonium carbonate solution (4.3)
A mixed standard working solution at a concentration of 2.0 μg/kg, 5.0 μg/kg, 10 μg/kg, 20 μg/kg and 50 μg/kg was prepared. Is now available.
4.9 microporous membrane. 0.2μm, organic system.
4.10 MycoSep 150 ergot base multifunctional purification column 1), or equivalent performance.
1) Non-commercial declaration. This standard method uses the MycoSep 150 ergot base multi-purpose purification column to complete the sample purification and extraction,
Phase purification column model is only for reference, does not involve commercial purposes, to encourage standard users to try different types of solid-phase purification column.
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