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Determination of 2-nitro-1, 4-benzenediamine and its salts in oxidative hair dyes for import and export-High performance liquid chromatography
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Basic data
| Standard ID | SN/T 3829-2014 (SN/T3829-2014) |
| Description (Translated English) | Determination of 2-nitro-1, 4-benzenediamine and its salts in oxidative hair dyes for import and export-High performance liquid chromatography |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | Y42 |
| Classification of International Standard | 71.100.70 |
| Word Count Estimation | 6,625 |
| Regulation (derived from) | AQSIQ notification issued in 2014 on the first batch of 230 industry-standard entry-exit inspection and quarantine |
| Issuing agency(ies) | General Administration of Customs |
| Summary | This Standard specifies the oxidative hair dye 2-nitro-p-phenylenediamine and its salts -p- high performance liquid chromatographic method. This Standard applies to the determination of oxidative hair dye 2-nitro -p- phenylenediamine and its salts. |
SN/T 3829-2014: Determination of 2-nitro-1, 4-benzenediamine and its salts in oxidative hair dyes for import and export-High performance liquid chromatography
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Determination of 2-nitro-1, 4-benzenediamine and its salts in oxidative hair dyes for import and export-High performance liquid chromatography
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Importers oxidative hair dye 2-nitro -p- phenylenediamine
Its salts HPLC
Issued on. 2014-01-13
2014-08-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. Exit Inspection and Quarantine Technology Center Xiamen People's Republic of China, People's Republic of China Zhuhai Entry-Exit Inspection
Inspection and Quarantine Bureau Technology Center.
The main drafters of this standard. Lai Ying, Lin Rui, Wang Honghui Chen and Xiu Dong Qing wood, Wang Feng, Huang Zongping, Ge Xiuxiu, Yangqiu Ju, A Letter.
Importers oxidative hair dye 2-nitro -p- phenylenediamine
Its salts HPLC
1 Scope
This standard specifies the 2-nitro-oxidative hair dye -p- phenylenediamine and its salts by high performance liquid chromatographic method.
This standard applies to the determination of oxidative hair dye 2-nitro -p- phenylenediamine and its salts.
Principle 2
Samples with ethanol - water (11) ultrasonic extraction, the extract was filtered, measured by high performance liquid chromatography. According to their retention times and purple
Outside the absorption spectrum of qualitative and external standard.
3 Reagents and materials
Unless otherwise indicated, the reagents used were of analytical grade, water is deionized water or equivalent purity.
3.1 ethanol. chromatography.
3.2 citric acid.
3.3 octane sulfonate.
3.4 ethanol - water (11). Take an equal volume of ethanol (3.1) was mixed with purified water.
3.5 2-nitro -p- phenylenediamine standard (2-nitro-1,4-benzenediamine, CAS number. 5307-14-2). Purity ≥97%.
3.6 Standard stock solution (1000mg/L). Weigh accurately 2-nitro -p- phenylenediamine (3.5) 0.1g (2-nitro -p- phenylenediamine using standard salts
Required molar in terms of the radical), accurate to 0.0002g, set 100mL flask with ethanol - diluted with water to the mark (3.4), shake well.
3.7 standard solution. Pipette appropriate amount of standard stock solution (3.6), with ethanol - diluted with water (3.4) at a concentration of 10mg/L, 20mg/L,
50mg/L, 100mg/L, 200mg/L of standard working solution.
3.8 organic membranes. 0.45μm.
4 instruments and equipment
4.1 high performance liquid chromatography with diode array detector.
4.2 ultrasonic cleaner (≥220W).
4.3 vortex mixer.
4.4 centrifuge. speed of not less than 4000r/min.
4.5 Electronic balance. a sense of the amount of 0.1mg.
Step 5 Analysis
5.1 Extraction
Weigh 1.0g sample (accurate to 0.0002g), placed in 25mL tube with a stopper colorimetric with ethanol - diluted to the mark with water (3.4). In the vortex
After mixing mixer, ultrasonic extraction 15min, transferred to a 25mL centrifuge tube with a stopper to 4000r/min speed centrifugal 8min, the
Supernatant through 0.45μm membrane after liquid chromatography.
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