HG-AFS DETERMINATION OF MICRO AMOUNTS ARSENIC IN SOY SALAD OIL(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Author(s):: Chen Guoyou; Cereal Quality Research Center Heilongjiang Academy of Agricultural Sciences , Harbin 150086

Keywords:: Dry ashing ; Hydride generation ; Atomic fluorescence spectrometry ; Arsenic ; Salad oil

Abstract:: Using dry ashing to digestion soy salad oil in this paper and determination micro amounts arsenic by HG -AFS were studied , the method of digestion , medium and acid concentration , the concentration of reducing agent(KBH4), interferences elements , reducing shelter were investigated , and the best experiment condition was obtained .This method proved to be accurate , high sensitivity , repeatable , simple , rapid , and it is suitable for the analysis in oil ,under the conditions proposed , there is a linear relationship in the range of 0 -200ng ml , and its detection limit is foundto be 0 .19ng ml and its recovery is between 86 .9 %-98 .0 %.

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Last Update: 2016-12-31