title: [Development and validation of an assay method of the paraphenylene diamine by gas chromatography-mass spectrometry].
abstract: Paraphenylenediamine is an aromatic amine used as a hair dye; it is responsible for poisoning characterized by respiratory distress involving life-threatening. The objective of this work is the development and validation of an assay of para-phenylenediamine in the whole blood. The method is based on the determination of paraphenylene diamine in whole blood by gas chromatography-mass spectrometry after liquid-liquid extraction and derivatization. The validation protocol has included the study of the recovery factor of extraction, the measurement range, accurency, repetability and intermediate precision. The calibration curve was linear between 98 and 1350 μg/L (r = 0.999), the limit of detection and quantification were 37 μg/L and 63 μg/L respectively. The accuracy were 94.7%. Coefficients of variation were (2.3/6.8/9.7%) for repeatability and (4.4/8.7/9.8%) for intermediate precision. The method is suitable for quantification of PPD in acute poisoning situations. A method for the determination of the paraphenylene diamine in the whole blood by gas chromatography coupled to mass spectrometry was developed. The validation of the method showed good linearity, good accuracy and low limit of quantification.
authors.affiliation: Laboratoire de pharmaco-toxicologie, Hôpital Bellevue, CHU Saint Etienne, France. ybousliman@hotmail.com
authors.forename: Yassir
authors.initials: Y
authors.lastname: Bousliman
authors.forename: Rachid
authors.initials: R
authors.lastname: Eljaoudi
authors.forename: Mina Ait
authors.initials: MA
authors.lastname: Elcadi
authors.forename: Thiery
authors.initials: T
authors.lastname: Basset
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Gay-Montchamp
authors.forename: Amine Ali
authors.initials: AA
authors.lastname: Zeggwagh
authors.forename: Abdelaziz
authors.initials: A
authors.lastname: Bouklouze
authors.forename: Yahia
authors.initials: Y
authors.lastname: Cherrah
authors.forename: Michel
authors.initials: M
authors.lastname: Ollagnier
mesh_terms: D002138:Calibration; D004396:Coloring Agents / Q000378:metabolism; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D006202:Hair Dyes / Q000378:metabolism* / Q000506:poisoning; D006801:Humans; D059625:Liquid-Liquid Extraction / Q000379:methods; D010655:Phenylenediamines / Q000097:blood* / Q000506:poisoning; D012015:Reference Standards; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D004396:Coloring Agents; D006202:Hair Dyes; D010655:Phenylenediamines; C029728:4-phenylenediamine