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2005•Journal of Hengyang Normal UniversityRequires access

Spectrophotometric Determination of Trace Amounts of Molybdenum with 3'-methoxy-4'-hydroxy Phenylflurone

Feng Yonglan

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Abstract

A spectrophotometric method for the determination of trace amounts of molybdenum (Ⅵ) with 3'-methoxy-4'-hydroxy phenylflurone (MHPF) was studied. It was found that, MHPF formed an red 2:1 complex with molybdenum (Ⅵ) in the medium of HCl and in the presence of cetyl trimethylammoinum bromide (CTMAB).The apparent molar absorptivity is 1. 03×105L·mol-1·cm-1 at 520nm. Beer's law is obeyed for molybdenum (Ⅵ) in the range of 0-0. 48 mg / L.The method has been applied to the determination of molybdenum (Ⅵ) in food samplese with satisfactory results.

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A spectrophotometric method for the determination of trace amounts of molybdenum (Ⅵ) with 3'-methoxy-4'-hydroxy phenylflurone (MHPF) was studied. It was found that, MHPF formed an red 2:1 complex with molybdenum (Ⅵ) in the medium of HCl and in the presence of cetyl trimethylammoinum bromide (CTMAB).The apparent molar absorptivity is 1. 03×105L·mol-1·cm-1 at 520nm. Beer's law is obeyed for molybdenum (Ⅵ) in the range of 0-0. 48 mg / L.The method has been applied to the determination of molybdenum (Ⅵ) in food samplese with satisfactory results.

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Available abstract

A spectrophotometric method for the determination of trace amounts of molybdenum (Ⅵ) with 3'-methoxy-4'-hydroxy phenylflurone (MHPF) was studied. It was found that, MHPF formed an red 2:1 complex with molybdenum (Ⅵ) in the medium of HCl and in the presence of cetyl trimethylammoinum bromide (CTMAB).The apparent molar absorptivity is 1. 03×105L·mol-1·cm-1 at 520nm. Beer's law is obeyed for molybdenum (Ⅵ) in the range of 0-0. 48 mg / L.The method has been applied to the determination of molybdenum (Ⅵ) in food samplese with satisfactory results.

Key concepts: Molybdenum, Molar absorptivity, Trace Amounts, Bromide, Chemistry, Spectrophotometry, Nuclear chemistry, Inorganic chemistry

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