Simultaneous determination of nickel, iron, and copper in margarine by inductively coupled plasma-atomic emission spectroscopy after sample emulsification.

Simultaneous determination of nickel, iron, and copper in margarine by inductively coupled plasma-atomic emission spectroscopy after sample emulsification. Research Abstract Details 

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Simultaneous determination of nickel, iron, and copper in margarine by inductively coupled plasma-atomic emission spectroscopy after sample emulsification. Abstract Text:

Nickel, iron, and copper were determined in margarine samples by using emulsification followed by inductively coupled plasma-atomic emission spectroscopy. Sample treatment and instrumental conditions were optimized, and the results were compared with those obtained by a pseudodigestion method in order to evaluate the compatibility of both methodologies. The optimum amount of margarine in the emulsion was 35% when the surfactant Tween 80 was added as the emulsifier. Copper was below the detection limits of both methodologies, i.e., digestion and emulsion; iron and nickel concentrations found by both methodologies were similar. The detection limits of the emulsion method were 0.002, 0.015, and 0.092 mg/kg for copper, iron, and nickel, respectively. A benefit of the emulsion method is that laborious and lengthy sample digestion procedures are avoided. In addition, accurate and precise results are obtained. Recoveries with the emulsion method ranged from 101 to 104%, with relative standard deviations of < or = 6%.

Simultaneous determination of nickel, iron, and copper in margarine by inductively coupled plasma-atomic emission spectroscopy after sample emulsification. Publishing Authors By Initials

For similar chemical actions and uses: specialty uses of chemicals: surface-active agents research abstracts see: chemical actions and uses: specialty uses of chemicals: surface-active agents research

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Simultaneous determination of nickel, iron, and copper in margarine by inductively coupled plasma-atomic emission spectroscopy after sample emulsification. Journal Published:

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

Journal: Journal of AOAC International

VOLUME: 85

Page Numbers: 967-70

Journal Abbreviation: J AOAC Int

ISSN: 1060-3271

DAY: 17

MONTH: 03

YEAR: 2008

Simultaneous determination of nickel, iron, and copper in margarine by inductively coupled plasma-atomic emission spectroscopy after sample emulsification. Information

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LANGUAGE: eng

NlmUniqueID: 9215446

Simultaneous determination of nickel, iron, and copper in margarine by inductively coupled plasma-atomic emission spectroscopy after sample emulsification. Keywords Mesh Terms:

KEYWORDS: Surface-Active Agents

MESH TERMS: methods

Chemical & Substance for Abstract: Simultaneous determination of nickel, iron, and copper in margarine by inductively coupled plasma-atomic emission spectroscopy after sample emulsification. Information

Substance Name: Margarine

Registry Number: 8029-82-1

Grant and Affiliation Information for Simultaneous determination of nickel, iron, and copper in margarine by inductively coupled plasma-atomic emission spectroscopy after sample emulsification.

AFFILIATION: Instituto Venezolano de Investigaciones Científicas, Centro de Química, Caracas. zbenzo@ivic.ve

Country: United States

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MEDLINETA: J AOAC Int

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