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GB/T 45139-2024 English PDF

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GB/T 45139-2024: Determination of bergapten content in essential oils of bergamot, lemon, bitter orange and lime(fully or partially reduced in bergapten) - High-performance liquid chromatography
Status: Valid
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GB/T 45139-2024English274 Add to Cart 3 days [Need to translate] Determination of bergapten content in essential oils of bergamot, lemon, bitter orange and lime(fully or partially reduced in bergapten) - High-performance liquid chromatography Valid GB/T 45139-2024

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Basic data

Standard ID GB/T 45139-2024 (GB/T45139-2024)
Description (Translated English) Determination of bergapten content in essential oils of bergamot, lemon, bitter orange and lime(fully or partially reduced in bergapten) - High-performance liquid chromatography
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Y41
Classification of International Standard 71.100.60
Word Count Estimation 14,156
Date of Issue 2024-12-31
Date of Implementation 2025-07-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 45139-2024: Determination of bergapten content in essential oils of bergamot, lemon, bitter orange and lime(fully or partially reduced in bergapten) - 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.
ICS 71.100.60 CCSY41 National Standard of the People's Republic of China Bergamot, lemon, bitter orange and lime essential oils (5-methoxy 5-Methoxypsoralen Determination of content by HPLC Published on 2024-12-31 Implemented on 2025-07-01 State Administration for Market Regulation The National Standardization Administration issued

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. This document is equivalent to ISO 7358.2021 "Bergamot, lemon, bitter orange and lime essential oils, with 5-methoxy Determination of 5-methoxypsoralen content by high performance liquid chromatography (HPLC). The following minimal editorial changes were made to this document. --- To coordinate with the existing standards, the name of the standard was changed to "Bergamot, lemon, bitter orange and white lime essential oils (all removed or partially reduced Determination of 5-methoxypsoralen content in 5-methoxypsoralen by high performance liquid chromatography. 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 China Light Industry Federation. This document is under the jurisdiction of the National Technical Committee on Standardization of Flavors and Fragrances and Cosmetics (SAC/TC257). This document was drafted by. PROYA Cosmetics Co., Ltd., Shanghai Institute of Spice Co., Ltd., Shanghai Chuanyue Biotechnology Co., Ltd. Company, Shanghai Jahwa United Co., Ltd., Guangdong Mingkang Flavors & Fragrances Co., Ltd., Yiwu Standardization Research Institute, Wanxiang Technology Group Co., Ltd. Co., Ltd., Jiangsu Hongbang Chemical Technology Co., Ltd., Shenzhen Yupeng Technology Co., Ltd., Yunnan China Tobacco Industry Co., Ltd., Shanghai Mudanjiang DAN FLAVOR & FRAGRANCE LIMITED. The main drafters of this document are. Sun Shurong, Cao Jiandi, Jin Qizhang, Yang Bin, He Guangming, Jia Haidong, Wu Huanqing, Liu Qingfei, Yuan Yuan, Zhou Jiang, Li Xiangqian, Long Jinhui, Ji Xinlin, Liu Xiaotao, Zhong Qiaoxia, Wu Renhua, Zhang Yipeng, Tang Li, Huang Wei. Bergamot, lemon, bitter orange and lime essential oils (5-methoxy 5-Methoxypsoralen Determination of content by HPLC

1 Scope

This document describes the determination of the total or partial removal of 5-methoxy

2 Normative references

The contents of the following documents constitute 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. Note. GB/T 14454.1 Preparation of fragrance samples (GB/T 14454.1-2008, ISO 356.1996, MOD) Note. GB/T 27579 General method for analysis of essential oils by high performance liquid chromatography (GB/T 27579-2011, ISO 8432.1987, IDT)

3 Terms and definitions

There are no terms or definitions that require definition in this document. ISO and IEC maintain terminology databases for standardization at the following addresses.

4 Principle

The content of 5-methoxypsoralen in the sample is determined by diluting the sample and performing gradient elution with normal phase or reverse phase high performance liquid chromatography. The ions were measured by diode array ultraviolet detector using internal or external standards.

5 Reagents

Use only analytical grade reagents.

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