Applicability of purge and trap gas chromatography- mass spectrometry method for sensitive analytical detection of naphthalene and its derivatives in waters.

摘要: Nowadays, a wide variety of chemicals has emerged because increasing industrial and human activities. Thus, environmental chemistry laboratories performing analytical measurements need rapid sensitive methods more than ever to get reliable quantitative data. For this purpose, purge trap gas chromatography-mass spectrometry (GC-MS) method was developed validated for the rapid, simple, determination presence naphthalene its derivatives in waters. The validation based on specificity, calibration curve linearity, limit detection (LOD) quantification (LOQ), accuracy (recovery), precision, matrix effects (MEs), measurement uncertainty. This showed excellent linearity from 1.00 40.00 μg/L except (0.50-40.00 μg/L) correlation coefficients were higher 0.997 all analytes. LOQ values varied 0.312 0.746 μg/L, LOD changed 0.094 0.224 with relative standard deviations (RSDs) compounds below 10% (3.12-7.46), respectively. Recoveries ranged 81.9% 95.6%, repeatability reproducibility (in terms RSD six measurements) lower cases. F test subjected related data at 95% confidence level, no statistically significant difference observed. There critical ME (recovery 80% 110% matrices). In uncertainty, expanded uncertainties each analyte range 0.39-0.52 had dominant combined application real samples successfully assessed by method. These results indicate that is suitable