A double-line sequential injection system for the spectrophotometric determination of copper, iron, manganese, and zinc in waters.

A double-line sequential injection system for the spectrophotometric determination of copper, iron, manganese, and zinc in waters. Research Abstract Details 

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A double-line sequential injection system for the spectrophotometric determination of copper, iron, manganese, and zinc in waters. Abstract Text:

A double-line sequential injection system was developed for the spectrophotometric determination of several metal ions in waters. The proposed double-line configuration was used to enable adding sample and chromogenic reagents as merging zones. The methodology was applied to the spectrophotometric determination of copper, iron, manganese, and zinc in samples of diverse origins at the range of 0.15-5.00, 0.10-10.0, 0.48-4.00, and 0.11-5.00 mg/L, respectively. Different chromogenic reagents and detection wavelengths were used. The chromogenic reagents for iron and manganese were 1,10-phenanthroline and formaldoxime, respectively. Copper and zinc were both determined using the analytical reagent zincon. Analytical characteristics of the methodology, such as manifold parameters, buffer pH, and reagent concentrations were optimized, and interference of some of the metal ions commonly present in water sample was assessed. Results of the analysis were in agreement with those obtained by atomic absorption spectrometry. Repeatability, expressed as the relative standard deviation for 10 consecutive injections of water samples, was lower than 6%. The determination rate was approximately 36/h.

A double-line sequential injection system for the spectrophotometric determination of copper, iron, manganese, and zinc in waters. Publishing Authors By Initials

For similar inorganic chemicals: elements: metals, heavy: zinc research abstracts see: inorganic chemicals: elements: metals, heavy: zinc research

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A double-line sequential injection system for the spectrophotometric determination of copper, iron, manganese, and zinc in waters. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of AOAC International

VOLUME: 88

Page Numbers: 639-44

Journal Abbreviation: J AOAC Int

ISSN: 1060-3271

DAY: 17

MONTH: 03

YEAR: 2008

A double-line sequential injection system for the spectrophotometric determination of copper, iron, manganese, and zinc in waters. Information

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LANGUAGE: eng

NlmUniqueID: 9215446

A double-line sequential injection system for the spectrophotometric determination of copper, iron, manganese, and zinc in waters. Keywords Mesh Terms:

KEYWORDS: Zinc

MESH TERMS: analysis

Chemical & Substance for Abstract: A double-line sequential injection system for the spectrophotometric determination of copper, iron, manganese, and zinc in waters. Information

Substance Name: Zinc

Registry Number: 7440-66-6

Grant and Affiliation Information for A double-line sequential injection system for the spectrophotometric determination of copper, iron, manganese, and zinc in waters.

AFFILIATION: Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.

Country: United States

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MEDLINETA: J AOAC Int

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