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Study on Spectrophotometric Determination of Aluminium in hair

Yin Guo

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Abstract

Colour reaction of 2-(H-acidazo)-4,5-dinitrophenol(HADNP) with aluminium was studied in pH=5.3 N 4(CH 2) 6-HCl buffer solution,HADNP can react with Al(Ⅲ)to form an 3∶1 stable complex.The molar absorptivity is 3.292×10 4 L/mol·cm at 570 nm.Beer'slaw is obeyed in the range of 0～12 μg/25mL.This method can be applied to the determination of Aluminium in hair with satisfactory results.

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What this paper is about

Colour reaction of 2-(H-acidazo)-4,5-dinitrophenol(HADNP) with aluminium was studied in pH=5.3 N 4(CH 2) 6-HCl buffer solution,HADNP can react with Al(Ⅲ)to form an 3∶1 stable complex.The molar absorptivity is 3.292×10 4 L/mol·cm at 570 nm.Beer'slaw is obeyed in the range of 0～12 μg/25mL.This method can be applied to the determination of Aluminium in hair with satisfactory results.

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Available abstract

Colour reaction of 2-(H-acidazo)-4,5-dinitrophenol(HADNP) with aluminium was studied in pH=5.3 N 4(CH 2) 6-HCl buffer solution,HADNP can react with Al(Ⅲ)to form an 3∶1 stable complex.The molar absorptivity is 3.292×10 4 L/mol·cm at 570 nm.Beer'slaw is obeyed in the range of 0～12 μg/25mL.This method can be applied to the determination of Aluminium in hair with satisfactory results.

Key concepts: Molar absorptivity, Aluminium, Chemistry, Molar ratio, Spectrophotometry, Color reaction, Nuclear chemistry, Chromatography

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