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2002•Journal of Analytical ScienceRequires access

A Study on the Synthesis of meso-Tetra (5-chloro-4-hydroxyphenyl-3-methoxy) Porphyrin and Its Color Reaction with Fe (III)

Yu Wang

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Abstract

A new color reagent, meso tetra (5 chloro 4 hydroxyphenyl 3 methoxy) porphyrin was synthesized. Its spectrophotometric characteristics with Fe (Ⅲ) was studied. In a medium of pH 6.6 buffer and Triton X 100, the orange yellow complex of this reagent with Fe(Ⅲ) was formed. The apparent molar absorptivity of the complex was 6.6×10 5 L·mol -1 ·cm -1 (λ=446 nm). Beer's law was obeyed for Fe (Ⅲ) in the range of 0.01～7.5 μg/25 mL. The reagent has been applied to the determination of Fe (Ⅲ) in the natural water.

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What this paper is about

A new color reagent, meso tetra (5 chloro 4 hydroxyphenyl 3 methoxy) porphyrin was synthesized. Its spectrophotometric characteristics with Fe (Ⅲ) was studied. In a medium of pH 6.6 buffer and Triton X 100, the orange yellow complex of this reagent with Fe(Ⅲ) was formed. The apparent molar absorptivity of the complex was 6.6×10 5 L·mol -1 ·cm -1 (λ=446 nm). Beer's law was obeyed for Fe (Ⅲ) in the range of 0.01～7.5 μg/25 mL. The reagent has been applied to the determination of Fe (Ⅲ) in the natural water.

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Available abstract

A new color reagent, meso tetra (5 chloro 4 hydroxyphenyl 3 methoxy) porphyrin was synthesized. Its spectrophotometric characteristics with Fe (Ⅲ) was studied. In a medium of pH 6.6 buffer and Triton X 100, the orange yellow complex of this reagent with Fe(Ⅲ) was formed. The apparent molar absorptivity of the complex was 6.6×10 5 L·mol -1 ·cm -1 (λ=446 nm). Beer's law was obeyed for Fe (Ⅲ) in the range of 0.01～7.5 μg/25 mL. The reagent has been applied to the determination of Fe (Ⅲ) in the natural water.

Key concepts: Reagent, Chemistry, Molar absorptivity, Porphyrin, Color reaction, Tetra, Orange (colour), Spectrophotometry

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A Study on the Synthesis of meso-Tetra (5-chloro-4-hydroxyphenyl-3-methoxy) Porphyrin and Its Color Reaction with Fe (III) — Research Paper | ScholarLens