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《Guiding Journal of Traditional Chinese Medicine and Pharmacy》 2009-09
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Study on the Supplement Methd for Quality Identification of Residual SO_2 in Lily Bulb

YANG De-quan,YUAN Hong The Drug Inspection Insistute of Xiangxi Autonomy Area,Jishou,Hunan,China,416000  
Objective: To establish the supplement method for quality indentification of residual SO2 in Lily Bulb processed with traditional sulphur smoking.Methods: According to the character that SO2 dissolved water easilym,making residual SO2 in Lily Bulb water-soak to become sufurous acid.Sufurous acid could make iodine solution reduction and color fading,also reacted with baruium chloride to become white precipitation.Results: All residual SO2 sample showed positive reaction,Lily Buld without sulphur smoking showed negative reaction.Conclusion: Through two reaction result can identify if residual SO2 exist in trial sample,with strong specificity,can be as the supplement method for quality identification of residual SO2 in Lily Bulb.
【CateGory Index】: R284.1
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