title: Determination of the acaricide fenbutatin oxide in water samples by automated headspace-SPME-GC/MS.
abstract: The analysis of the acaricide fenbutatin oxide (FBTO) having a molecular weight of 1052.66 g mol(-1) in water samples by capillary GC/MS after in-situ derivatization with sodium tetraethylborate (NaBEt4) and headspace-SPME enrichment is described. Automated SPME is performed at 80 degrees C for 30 min. Detection is carried out in the ion monitoring mode with deuterated triphenyltin (TPhTd15) as internal standard. Good linearity (R2 = 0.9993) was obtained in the dynamic range 20 to 1000 ng L(-1) with a limit of detection of 16 ng L(1) (LOD at 3 S/N) and a limit of quantitation of 50 ng L(-1) (LOQ at 10 S/N). Intra-day RSD% for n=6 was 8.9 at the LOQ level.
authors.affiliation: Department of Organic Chemistry, Laboratory of Separation Sciences, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium.
authors.forename: Christophe
authors.initials: C
authors.lastname: Devos
authors.forename: Luc
authors.initials: L
authors.lastname: Moens
authors.forename: Pat
authors.initials: P
authors.lastname: Sandra
mesh_terms: D000818:Animals; D008401:Gas Chromatography-Mass Spectrometry / Q000295:instrumentation / Q000379:methods*; D015394:Molecular Structure; D009947:Organotin Compounds / Q000032:analysis*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014867:Water / Q000737:chemistry*
chemical_list: D009947:Organotin Compounds; D014867:Water; C022071:vendex