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Start Over Author "Helio G. Bonacorso" Language portuguese
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1. Determinação de bifenilos policlorados em milho através de extração em fase sólida seguida de cromatografia a gás acoplada à espectrometria de massas

Author

Marcos A. P. Martins, Joni Hilda Costabeber, Susana Mohr, Thiago Guilherme Schwanz, Liliane M. F. Porte, Helio G. Bonacorso, and Nilo Zanatta

Subjects
lcsh:Chemistry, GC, corn, Chromatography, PCB, lcsh:QD1-999, Calibration curve, Chemistry, GC/MS, Relative standard deviation, General Chemistry, Solid phase extraction
Abstract

This paper describes an analytical method for analyzing polychlorinated biphenyls in corn samples using solid phase extraction (SPE) followed by determination by GC-MS. All calibration curves proved linear (r> 0.99). Recoveries ranged between 74.1 and 110.6% with relative standard deviation lower than 20% for all compounds. The limits of quantitation for the method were between 0.025 and 0.1 ng g-1. Of the 51 samples analyzed, PCB 180 showed the highest frequency, being detected in more than 39%, followed by PCB 138, detected in more than 33% of samples.

Published
2012

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