Matrix effect of barium on spectral line intensities and detection limits in inductively coupled plasma atomic emission spectroscopy

Talanta ◽  
1993 ◽  
Vol 40 (8) ◽  
pp. 1295-1299
Author(s):  
Zoja Ilić ◽  
Julijana Georgijević ◽  
Veljko Georgijević
Keyword(s):  
Spectral Line ◽  
Matrix Effect ◽  
Inductively Coupled Plasma ◽  
Emission Spectroscopy ◽  
Detection Limits ◽  
Atomic Emission ◽  
Atomic Emission Spectroscopy ◽  
Plasma Atomic Emission ◽  
Inductively Coupled ◽  
Line Intensities

scholarly journals Simultaneous Determination of Nickel, Iron, and Copper in Margarine by Inductively Coupled Plasma–Atomic Emission Spectroscopy after Sample Emulsification

2002 ◽  
Vol 85 (4) ◽  
pp. 967-970 ◽  
Author(s):  
Zully Benzo ◽  
Eunice Marcano ◽  
Clara Gómez ◽  
Frine Ruiz ◽  
Janeth Salas ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Emission Spectroscopy ◽  
Detection Limits ◽  
Atomic Emission ◽  
Atomic Emission Spectroscopy ◽  
Sample Treatment ◽  
Plasma Atomic Emission ◽  
Emulsion Method ◽  
Nickel Iron ◽  
Inductively Coupled

Abstract 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 ≤6%.

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