波谱学杂志2017，Vol.34Issue(1)：8-15,8.DOI:10.11938/cjmr20170102
13C qNMR结合DFSS方法测定油品芳碳率
Determination of Aromatic Carbon Mole Ratio in Oil Samples by Quantitative 13C NMR Spectroscopy with DFSS Methodology
摘要
Abstract
Aromatic carbon mole ratios [C(ar)%] in model oil samples, which consisted of 11 saturated/unsaturated compounds with known contents, were determined by quantitative carbon nuclear magnetic resonance spectroscopy (13C qNMR) with the design for six Sigma (DFSS) methodology. An empirical model was established between C(ar)% and sample parameters, including sample concentration (Conc.), concentration of relaxation reagent Cr(acac)3 and relaxation delay (D1). Based on the model, the optimal condition was determined to be at sample concentration 180 mg/mL, concentration of Cr(acac)312 mg/mL and D110.5 s. Eight verification experiments were performed under the optimal condition, and the results showed fairly good repeatability (RSD = 0.61%) and accuracy (99.0%~100.6%). The work also gave some supplementary suggestions on parameter settings for the current GB method/ASTM method.关键词
定量核磁共振碳谱(13CqNMR)/芳碳率/模型油品/六西格玛设计(DFSS)Key words
quantitative carbon nuclear magnetic resonance spectroscopy (13C qNMR)/aromatic carbon mole ratios/model oil samples/design for six Sigma (DFSS)分类
数理科学引用本文复制引用
马琳鸽,龙银花..13C qNMR结合DFSS方法测定油品芳碳率[J].波谱学杂志,2017,34(1):8-15,8.基金项目
中澳能源联合研究(关键技术联合研究)资助项目(2013DFG61490). （关键技术联合研究）
