3篇
您的检索式：作者名="Meng Pinjia"
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| 1 | Molecularly imprinted photonic hydrogels for fast screening of atropine in biological samples with high sensitivity显示文摘 | Liang Meng Pinjia Meng Bugang Tang Qingqing Zhang Yanji Wang | 2013 | Forensic Science International (-)2013，，1： | 1 |
| 2 | Fast screening of ketamine in biological samples based on mo- lecularly imprinted photonic hydrogels 显示文摘 | Meng Liang Meng Pinjia Zhang Qingqing | 2013 | Analytica Chimiea Acta2013，771，： | 1 |
| 3 | Ultrasound-Assisted Low-Density Solvent Dispersive Liquid-Liquid Extraction for the Determination of Amphetamines in Biological Samples Using Gas Chromatography-Mass Spectrometry显示文摘In order to control drug crime effectively,it is necessary to develop selective analytical methods suitable for unambiguous identification and determination of drugs in illicit samples and biological matrices.A novel microextraction technique based on ultrasound-assisted low-density solvent dispersive liquid-liquid microextraction,(UA-LDS-DLLME)has been applied to the determination of four amphetamines(methamphetamine,amphetamine,3,4-methylenedioxymethamphetamine,and 3,4-methylenedioxyamphetamine)in urine samples by gas chromatography-mass spectrometry.The parameters affecting extraction efficiency have been investigated and optimized.UA-LDS-DLLME used ultrasound energy to assist in the emulsification process without any disperser solvent.Under the optimized conditions,linearity was observed for all analytes in the 0.15-10 p,g/mL range with correlation coefficients(R)ranging from 0.9886 to 0.9894.The recoveries of75.6-91.4%with relative standard deviations of 2.5-4.0%were obtained.The limits of detection(S/N=3)were estimated to be in the 5-10 ng/mL range.The UA-LDS-DLLME technique had the advantages of shorter extraction time,suitability for simultaneous pretreatments of batches of samples,and the higher extraction efficiency.It was successfully applied to the analysis of amphetamines in real human urine samples. | Liang Meng Wenwen Zhang Pinjia Meng Yuxian Liu | 2015 | Journal of Forensic Science and Medicine2015，1，2： | 0 |
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