Determination of platinum in protein-bound CDDP and DBP by inductively coupled plasma optical emission spectrometry and electrothermal atomic absorption spectrometry

1996 ◽  
Vol 11 (9) ◽  
pp. 747-750 ◽  
Author(s):  
Thorsten J. Einhäuser ◽  
Markus Galanski ◽  
Bernhard K. Keppler
1992 ◽  
Vol 75 (4) ◽  
pp. 667-671 ◽  
Author(s):  
Shen Miaokang ◽  
Shi Yinyu

Abstract A method had been developed for the determination of lanthanum, europium, and ytterbium in food samples by using electrothermal atomic absorption spectrometry with a graphite furnace lined with tungsten foil. The proposed method provides higher sensitivity than inductively coupled plasma/atomic emission spectrometry (ICP/AES); the characteristic masses are 8.1 x 10-9 g for lanthanum, 3.9 x 10-11 g for europium, and 4.27 x 10,-12 g for ytterbium. The precision, accuracy, and interferences of the method were also investigated. The method can be used for the analysis of trace amounts of lanthanum, europium, and ytterbium in various foods without predissociation of the matrixes of the digested solutions. The results obtained by the method are in good agreement with those from ICP/AES.


2005 ◽  
Vol 88 (1) ◽  
pp. 221-225 ◽  
Author(s):  
Silvia Arce ◽  
Soledad Cerutti ◽  
Roberto Olsina ◽  
María R Gomez ◽  
Luis D Martínez

Abstract Phytopharmaceuticals containing Valerian are used as mild sleep-inducing agents. The elemental composition of 3 different marks of Valeriana officinalis roots commercially available in the Argentinian market, their teas, and a commercial tincture have been studied. The content of Al, Ca, Cd, Co, Cr, Cu, Fe, Li, Mn, Ni, Pb, V, and Zn was determined in phytopharmaceuticals by flame atomic emission/absorption spectrometry, electrothermal atomic absorption spectrometry, and ultrasonic nebulization coupled to inductively coupled plasma-optical emission spectrometry. Prior to analyses of the samples, a digestion procedure was optimized. The analytical results obtained for Fe, Al, Ca, and V in the solid sample study were within the range 100–1000 mg/kg, and for Mn, Zn, and Pb within the range 10–100 mg/kg. Cadmium was found at levels up to 0.0125 mg/kg.


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