Patricia Plaza Bolaños

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A new multiresidue method has been developed and validated for the determination of more than 140 pesticide residues in cucumber and orange by gas chromatography coupled to triple quadrupole mass spectrometry (GC-QqQ-MS/MS) in a single run of 25.50 min. The triple quadrupole (QqQ) analyzer simultaneously operated in the selected reaction monitoring (SRM)(More)
A multiresidue method for determining 22 polychlorinated biphenyls (PCBs) in air has been developed and validated by gas chromatography (GC) coupled to tandem mass spectrometry (MS/MS) using a triple quadrupole analyzer (QqQ). The method was validated in terms of both steps of sampling and analysis. The sampling method, which is based on active sampling(More)
A large number of toxic substances, such as pesticides, antibiotics and toxins from different sources (natural or man-made) and different degrees of toxicity for human health can be found in foods. This type of compounds are generally found at very low concentrations in highly complex matrices, it therefore being necessary for the most highly reliable(More)
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