目录简介 | Contents Foreword 1. Scope 2. Normative references 3. Principle 4. Reagents and materials 5. Instruments and equipment 5.1 Balance: With sensitivity of 0.01 mg and 0.1 mg; 5.2 Hot water bath with thermostat; 5.3 Centrifugal machine: Revolution not less than 5, 000 r/min; 5.4 Gas chromatography analyzer with FID detector; 5.5 Freezing dryer; 5.6 Nitrogen blower; 5.7 Threaded glass tube [with thread cover with inner gasket made of Polytetrafluoroethene (PTFE)] 5.8 Centrifugal tube: 50 mL 6. Steps of analysis 7. Expression of analysis results 8. Precision 9. Miscellaneous 10. Principle 11. Reagents and materials 12. Instruments and equipment 13. Steps of analysis 14. Expression of analysis results 15. Precision 16. Miscellaneous Annex A (Informative) Typical gas - phase chromatography of fatty acids and their conversion coefficients |