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| 1 | Simultaneous and interference-free determination of eleven nonsteroidal anti-inflammatory drugs illegally added into Chinese patent drugs using chemometrics-assisted HPLC-DAD strategy显示文摘In this work, a smart strategy that combines three-way high performance liquid chromatography-diode array detection(HPLCDAD) data with second-order calibration method based on alternating trilinear decomposition(ATLD) algorithm was proposed for simultaneous determination of eleven non-steroidal anti-inflammatory drugs(NSAIDs) illegally added into Chinese patent drugs and health products. All target analytes were rapidly eluted out within 14.5 min under a simple gradient elution. With the aid of the prominent 'second-order advantage' of the ATLD algorithm, three HPLC problems, i.e. peak overlaps, unknown interferences and baseline drift, could be mathematically calibrated, and pure signals of target analytes could be extracted out from heavy-interference but information-rich HPLC-DAD data. The average spiked recoveries for all target analytes were in the range of 95.9%–106.4% with standard deviations lower than 7.5%. Validation parameters including sensitivity(SEN), selectivity(SEL), limit of detection(LOD), limit of quantitation(LOQ) and precisions of intra-day and inter-day were calculated to validate the accuracy of the proposed method, quantitative results were further confirmed by the classic HPLC method, which proved that chemometrics-assisted HPLC-DAD analytical strategy was highly efficient, accurate and green for drug-abuse monitoring of NSAIDs in Chinese patent drugs and health products. | Tong Wang Hai-Long Wu Li-Xia Xie Zhi Liu Wan-Jun Long Li Cheng Yu-Jie Ding Ru-Qin Yu | 2018 | Science China Chemistry2018，61，6： | 2 |
| 2 | 二阶校正三维荧光测定大气污染源中苯并(a)蒽显示文摘建立了一种激发发射矩阵荧光结合基于交替三线性分解(ATLD)的二阶校正方法,快速精准检测大气污染源如油污、油烟气和烟囱灰样品中苯并(a)蒽(BaA)含量。在N=5时,ATLD获得3种样品中BaA的平均回收率分别为98.0%±5.0%、86.7%±2.3%和108.2%±3.4%,预测均方根误差分别为0.33 ng/m L、0.64 ng/m L和0.37 ng/m L。结果表明,该方法能在多种背景干扰下检测大气污染源中BaA含量,且方法准确快速,检测限低,绿色环保。 | 陈铭 卿湘东 邓伟 吴康佳 雷坚志 陈畅亚 许素文 李双双 文瑾 申湘忠 | 2018 | 广州化工2018，46，4： | 2 |
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