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Determination of dimethyl fumarate in leather and leather products. Gas chromatography-mass method
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SN/T 2446-2010
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Basic data | Standard ID | SN/T 2446-2010 (SN/T2446-2010) | | Description (Translated English) | Determination of dimethyl fumarate in leather and leather products. Gas chromatography-mass method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | Y45 | | Classification of International Standard | 59.140.01 | | Word Count Estimation | 6,693 | | Date of Issue | 2010-03-02 | | Date of Implementation | 2010-09-16 | | Regulation (derived from) | State inspection recognized (2010) 98; industry standard filing Notice 2010 No. 5 (No. 125 overall) | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the leather and its products of dimethyl fumarate by gas chromatography/mass spectrometry. This standard applies to leather and its products Determination of dimethyl fumarate. | SN/T 2446-2010: Determination of dimethyl fumarate in leather and leather products. Gas chromatography-mass method
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Determination of dimethyl fumarate in leather and leather products.Gas chromatography-mass method
Exit inspection and quarantine industry standard book People's Republic of China
Determination of dimethyl fumarate in leather and leather products
Gas Chromatography/Mass Spectrometry
Issued on. 2010-03-02
2010-09-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
Appendix A of this standard is an informative annex.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard by the People's Republic of China Guangdong SAIEC IQ drafting, People's Republic of China Fujian Exit Inspection and Quarantine, China
PRC Shenzhen Entry-Exit Inspection and Quarantine of Jilin People's Republic of China participated in the drafting.
The main drafters of this standard. Liu Yingfeng, Di Cuiping, Linbi Fen, ZHOU Ming-hui, Li Dan, Homocysteine on Zheng Jianguo, Zhang Zhihui, Yueda Lei,
Xiaoda Hui, Li Bin, Jiang Xiaoli.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Determination of dimethyl fumarate in leather and leather products
Gas Chromatography/Mass Spectrometry
1 Scope
This standard specifies the leather industry dimethyl fumarate by gas chromatography/mass spectrometry methods.
This standard applies to leather and leather products - Determination of dimethyl fumarate.
2 principle of the method
With dehydrated ethyl acetate in a sample of dimethyl fumarate ultrasonic extraction, purification of the extract by gas chromatography/mass spectrometry
Analyzer (GC/MS) and confirmed, external standard.
3 Reagents and materials
Unless otherwise stated, use only reagents of analytical grade or higher purity.
3.1 ethyl acetate.? 5 by molecular sieve dehydration process.
3.2 Dimethyl fumarate standards. purity ≥98%.
3.3 neutral alumina column. 6mL/1000mg.
4 instruments and equipment
4.1 Gas chromatography/mass spectrometry (GC/MSD). with EI source.
4.2 rotary evaporator.
4.3 stoppered cylinders. 5mL.
4.4 ultrasonic extractor.
4.5 Syringe. 2mL.
4.6 stoppered conical flask. 100mL.
4.7 micro-injector. 10μL.
4.8 round-bottomed flask. 100mL.
4.9 plug volumetric flask. 25mL.
4.10 Electronic balance. a sense of the amount of 0.1mg.
Step 5 Analysis
5.1 Preparation and processing of samples
Take a representative sample of about 5mm × 5mm cut into small pieces, mix, weigh about 5.0g from the mixed sample (accurate to 0.01g), set
In stoppered Erlenmeyer flask (4.6) in. At least two parallel determination of the same sample. Add to 30mL by 5? Molecular sieve dehydration ethyl acetate (3.1),
The flask was sealed, shake vigorously, all immersed in a liquid sample, (4.4) in the ultrasonic extraction 10min ultrasonic extractor will extract
Decanted into a round bottom flask (4.8); then dehydrated 20mL ethyl acetate (3.1) Repeat the above steps once the combined extracts. In a rotary evaporator
On (4.2) and concentrated to near 3mL, transferred to a stoppered graduated cylinder (4.3), rinsed with a small amount of ethyl acetate dehydration round-bottomed flask, lotion incorporated into the cylinder with a stopper
(4.3), and finally with ethyl acetate dehydration volume to 5.0mL. (4.5) of 2mL test solution using a syringe through neutral alumina column (3.3) Net
After technology, gas chromatography/mass spectrometry.
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