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Synthesis of antipyrinylazoIII and its color reaction with nickel

Tao Jiang

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Abstract

In this paper a new reagent antipyrinylazoⅢ has been synthesized,purified and identified.In a buffer solution of Na_2B_4O_7-NaOH and in the presence of OP,this reagent forms a red complex with Ni~(2+),its apparent molar absorptivity is 5.2×10~4 L·mol~(-1)·cm~(-1) at 540 nm and the composition of the complex is M∶R=1∶1,Beer’s law is obeyed in the concentration range of 0-0.48 μg/mL.This method has been applied to the determination of nickel with satisfactory results.

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What this paper is about

In this paper a new reagent antipyrinylazoⅢ has been synthesized,purified and identified.In a buffer solution of Na_2B_4O_7-NaOH and in the presence of OP,this reagent forms a red complex with Ni~(2+),its apparent molar absorptivity is 5.2×10~4 L·mol~(-1)·cm~(-1) at 540 nm and the composition of the complex is M∶R=1∶1,Beer’s law is obeyed in the concentration range of 0-0.48 μg/mL.This method has been applied to the determination of nickel with satisfactory results.

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Available abstract

In this paper a new reagent antipyrinylazoⅢ has been synthesized,purified and identified.In a buffer solution of Na_2B_4O_7-NaOH and in the presence of OP,this reagent forms a red complex with Ni~(2+),its apparent molar absorptivity is 5.2×10~4 L·mol~(-1)·cm~(-1) at 540 nm and the composition of the complex is M∶R=1∶1,Beer’s law is obeyed in the concentration range of 0-0.48 μg/mL.This method has been applied to the determination of nickel with satisfactory results.

Key concepts: Reagent, Molar absorptivity, Nickel, Color reaction, Chemistry, Buffer solution, Spectrophotometry, Composition (language)

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