|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|228822||464850||2014||7 صفحه PDF||سفارش دهید||دانلود رایگان|
This study introduces a novel analytical method for the determination of nitrobenzene (NB) and 1,3-dinitrobenzene (DNB) from an aqueous solution using high performance liquid chromatography (HPLC) and anthracite as adsorbent for pre-concentration. The method showed good linearity for determination of NB and DNB concentrations in the range of 0.10–200 μg L−1 with regression coefficients better than 0.9995. Limits of detections (LOD) were 0.010 and 0.055 μg L−1 for DNB and NB, respectively. Relative standard deviations (RSD) for 0.50 μg L−1 and 150 μg L−1 were in the range of 2.0–3.8% for (DNB) and 3.0–4.8% for (NB).
Chromatograms of 1,3-dinitrobenzene (DNB) and nitrobenzene (NB) in the initial solution before extraction (a), initial solution after extraction (b) and desorbing solvent after pre-concentration (c). λabs = 254 nm.Figure optionsDownload as PowerPoint slide
Journal: Journal of Industrial and Engineering Chemistry - Volume 20, Issue 3, 25 May 2014, Pages 1003–1009