食物中二氧化硫分析簡介 - uri=govtlab.gov

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Centrifuge the sample at 2000 r.p.m. for 10 mins Filter the extract of the test sample Repeat the extraction process twice Centrifuge the solution at 2000 r.p.m. for 10 mins before injecting the solution into the flow inject analyser (FIA) •Sample size may be deducted according to the nature of the food type •Dilution of the extract may be needed for samples with suspected high concentration •The method is not applicable to any dehydrated samples
• Pump speed: 25 s • Cycle period: 200 s Setup of the Flow Injection Analysis • Injection of sulphuric acid is suggested between samples injections
Page 1 and 2: Briefing Session on Analysis of Sul
Page 3 and 4: Cap 132BD Background Preservatives
Page 5 and 6: Cap 132W Background Food and Drugs
Page 7 and 8: Testing Method: International Stand
Page 9 and 10: Qualitative Test for Sulphurous Aci
Page 11 and 12: Qualitative Test for Sulphurous Aci
Page 13 and 14: Determination of Sulphur Dioxide by
Page 15 and 16: Determination of Sulphur Dioxide by
Page 17: Determination of Sulphur Dioxide in
Page 21 and 22: Reporting Limits Quantitation of S
Page 23: • Identification and assay determ
Page 26 and 27: Proficiency Test LGC Standards Prof

食物中二氧化硫分析簡介 - uri=govtlab.gov

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