GB 5009.26-2016 Translated English of Chinese Standard. GB5009.26-2016: National Food Safety Standard - Determination of N-nitrosamine Compounds in Food [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 12 जुल॰ 2019 - 15 पेज This Standard specifies determination method of N-dimethylnitrosamine in food. This Standard is applicable to determination of N-dimethylnitrosamine in meat and meat products, aquatic animals and their products. |
सामग्री
| 3 | |
Scope | 4 |
Apparatus and equipment | 5 |
Expression of analysis results | 7 |
Method Two Gas chromatography Thermal energy analyzer | 8 |
Apparatus and equipment | 9 |
Expression of analysis results | 11 |
Precision | 12 |
Annex A Steam distillation device diagram | 13 |
Annex B Gas chromatogram | 14 |
Gas chromatography thermal energy analyzer spectrogram | 15 |
सामान्य शब्द और वाक्यांश
150mL of dichloromethane 20g of sodium 30mL of sulfuric 40°C water batch 5mL~10mL change nitrogen 90mL of cold amount is 200g Anhydrous sodium sulfate area of N-dimethylnitrosamine arithmetic mean batch on 40°C capillary column column chloride into distillation chromatographic column concentrate to 1mL content in sample device or equivalent Dichloromethane CH2Cl2 dichloromethane to prepare distillation device diagram Distillation of water ethanol Extraction Distillation Figure A.1 flask into water flat bottom flask full-glass device Full-glass steam distillation Gas chromatographic conditions gas chromatography mass spectrometry methylene chloride micrograms milliliters move methylene chloride N-dimethylnitrosamine standard N-nitrosamine compound Nitrogen blower pipette Place flat bottom Pointed glass tube positive response product N-nitrosamine standard Pyrolysis Reagent preparation Sulfuric sample mass separating funnel sodium chloride speed rate standard curve standard curve Respectively standard series standard use solution steam distillation device Sulfuric acid temperature rising conditions Thermal analyzer conditions Thermal energy analyzer volume to 1.0mL water bath water distillation device