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LST6151-2024: Inspection of grain and oils - Determination of amygdalin content - High-performance liquid chromatography
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| LS/T 6151-2024 | English | 199 |
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Inspection of grain and oils - Determination of amygdalin content - High-performance liquid chromatography
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LS/T 6151-2024
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Basic data | Standard ID | LS/T 6151-2024 (LS/T6151-2024) | | Description (Translated English) | Inspection of grain and oils - Determination of amygdalin content - High-performance liquid chromatography | | Sector / Industry | Food & Beverage Industry Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.200.10 | | Word Count Estimation | 10,183 | | Date of Issue | 2024-10-01 | | Date of Implementation | 2025-04-01 | | Issuing agency(ies) | National Grain and Material Reserves Administration | LST6151-2024: Inspection of grain and oils - Determination of amygdalin content - High-performance liquid chromatography
---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.
Grain Industry Standard of the People's Republic of China
ICS 67.200.10CCS X 04
Grain and oil inspection-Determination of amygdalin content
High performance liquid chromatography
Inspection of grain and oils-Determination of amygdalin
content-High⁃performance liquid chromatography
2024-10-01 Release
2025-04-01 Implementation
The State Administration of Grain and Material Reserves released
Published by China Standards Press
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting is required.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the State Administration of Grain and Material Reserves.
This document is under the jurisdiction of the National Technical Committee on Standardization of Cereals and Oils (SAC/TC 270).
This document was drafted by. National Grain and Material Reserves Administration Scientific Research Institute, National Grain and Material Reserves Administration Standard Quality Center, China
Forestry Research Institute of the Chinese Academy of Forestry Sciences, Yulin Desert King Biotechnology Co., Ltd., Shandong Longda Grain and Oil Co., Ltd., Shaanxi Grain Quality
Safety Center, China Tianjin Grain and Oil Wholesale Trading Market, Shaanxi Keyi Sunshine Testing Technology Service Co., Ltd., Shandong Xiangchi Grain and Oil Co., Ltd.
Co., Ltd., Heilongjiang Pony Testing Technology Co., Ltd.
The main drafters of this document are. Xue Yalin, Zhu Lin, Yuan Qiang, Wang Wei, Zhang Zhi, Zhang Rui, Gao Hongliang, Duan Zhangqun, Liu Ping, Li Quan, An Tiepeng,
Zheng Haijie, He Zhiqiang, Guo Mimi.
Grain and oil inspection-Determination of amygdalin content
High performance liquid chromatography
1 Scope
This document describes the sampling, sample preparation, operating procedures, result expression and precision of the HPLC method for the determination of amygdalin content.
density.
This document is applicable to the determination of amygdalin content in vegetable oils, cakes and vegetable oils.
The detection limit of amygdalin in oil is 40 mg/kg, and the quantification limit is 80 mg/kg; the detection limit of amygdalin in vegetable oil is
The detection limit is 80 mg/kg, and the quantification limit is 160 mg/kg; the detection limit of amygdalin in cake is 2 mg/kg, and the quantification limit is 4 mg/kg.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 5491 Sampling and subsampling methods for grain and oilseed inspection
GB/T 5524 Sampling of animal and vegetable fats and oils
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 15687 Preparation of animal and vegetable fat samples
3 Terms and definitions
There are no terms or definitions that require definition in this document.
4 Principle
After the samples were extracted with methanol, they were separated by high performance liquid chromatography and the content of amygdalin was determined at a wavelength of 210 nm using the external standard method.
Quantitative.
5 Reagents
Unless otherwise specified, all reagents used were of analytical grade (AR) and water should comply with the requirements of Grade 1 water in GB/T 6682.
5.1 Methanol. chromatographic grade.
5.2 Methanol-water mixture (20.80, volume ratio). Add 20 mL methanol to 80 mL water and mix well.
5.3 Petroleum ether. boiling range 30 ℃ ~ 60 ℃.
5.4 Amygdalin standard. purity ≥ 98%.
5.5 Amygdalin standard stock solution (500 μg/mL). Accurately weigh 25.0 mg (accurate to 0.000 1 g) of amygdalin standard (5.4)
Place in a 50 mL volumetric flask, dissolve with methanol (5.1) and make up to volume, shake well, store at 4 °C, and divide for use according to the amount used each time. The validity period is
1 month.
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