Determination of Trace MnⅡ in the Perilla Frutescensc（L.） Britt by Catalytic Kinetic Spectrophotometry

Abstract

Abstract: In the paper the catalytic kinetic spectrophotometry was used to determining trace Mn(Ⅱ) in the Perilla Frutescens(L.) Britt. The limit of detection for Mn(Ⅱ) was 5.4×10-5μg/ml and the linear range of determination was 1.0 to 10.0μg Mn(Ⅱ)/ml. The recoveries tested by the standard addition method were in the range of 97.8% to 104.5%, RSD, smaller than 2.6%(n=9).Satisfactory results were obtained in its application to the determination of Mn(Ⅱ) in the Perilla Frutescens(L.) Britt.

Key words: catalytic kinetic spectrophotometry, manganese, Perilla frutescens(L.) Britt

LIU Hong, DUAN You-Gou. Determination of Trace MnⅡ in the Perilla Frutescensc（L.） Britt by Catalytic Kinetic Spectrophotometry[J]. FOOD SCIENCE, 2004, 25(4): 134-136.

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Determination of Trace MnⅡ in the Perilla Frutescensc（L.） Britt by Catalytic Kinetic Spectrophotometry

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