Trace determination of organotin compounds in water, sediment and mussel samples by low-pressure gas chromatography coupled to tandem mass spectrometry

2003 ◽  
Vol 17 (18) ◽  
pp. 2099-2106 ◽  
Author(s):  
J. L. Martínez Vidal ◽  
A. Belmonte Vega ◽  
F. J. Arrebola ◽  
M. J. González-Rodríguez ◽  
M. C. Morales Sánchez ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Tandem Mass Spectrometry ◽  
Low Pressure ◽  
Organotin Compounds ◽  
Trace Determination ◽  
Tandem Mass

scholarly journals Application of Low-Pressure Gas Chromatography/Tandem Mass Spectrometry to the Determination of Pesticide Residues in Tropical Fruits

2007 ◽  
Vol 90 (4) ◽  
pp. 1146-1164 ◽  
Author(s):  
Jos Luis Martnez Vidal ◽  
Jos Luis Fernndez Moreno ◽  
Francisco Javier Arrebola Libanas ◽  
Antonia Garrido Frenich
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Tandem Mass Spectrometry ◽  
Pesticide Residues ◽  
High Speed ◽  
Low Pressure ◽  
Tandem Mass ◽  
Tropical Fruits ◽  
Relative Standard

Abstract A multiresidue method has been developed for determining pesticide residues in the tropical fruits kiwi, custard apple, and mango. The intended purpose of the method is for regulatory analyses of commodities for pesticides that have established maximum residue limits. A fast and simple extraction method with cyclohexaneethyl acetate (1 + 1, v/v) and a high-speed homogenizer was optimized. Pressurized liquid extraction was evaluated as an alternative automated extraction technique. The pesticide residues were determined by using low-pressure gas chromatography coupled to tandem mass spectrometry. The proposed methodology was validated for each matrix. Pesticide recoveries ranged from 70 to 110%, with repeatability relative standard deviations of 18% at spiking levels of 12 and 50 g/kg. The limits of quantitation were in the range of 0.036.17 g/kg, and the limits of detection were between 0.01 and 3.75 g/kg. Mango can be selected as a representative matrix for calibration on the basis of the results of a potential matrix effect study. The method was successfully applied to the determination of pesticide residues in real samples in Spain.

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