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    题名 作者 年代 出处 被引量
1Detection of geosmin and 2-methylisoborneol by liquid-liquid extraction-gas chromatograph mass spectrum (LLE-GCMS) and solid phase extraction-gas chromatograph mass spectrum (SPE-GCMS)显示文摘Two sample preparation methods were introduced and compared in this paper to establish a simple,quick and exact analysis of geosmin and 2-methylisoborneol.LC-18 column was employed in solid phase extraction(SPE),1.0 mL of hexane was adopted in liquid-liquid extraction(LLE),and the extracts were analyzed by gas chromatograph mass spectrum(GCMS)in selected ion mode.Mean recoveries of SPE were low for 2-methylisoborneol(2-MIB)and geosmin(GSM)with values below 50%.For LLE,the recoveries were satisfyingly above 50%for 2-MIB and 80%for GSM.Detection limits of the LLE method were as low as 1.0 ng/L for GSM and 5.0 ng/L for 2-MIB.A year-long investigation on odor chemicals of drinking water in Shanghai demonstrated that in the summer,there was a serious odor problem induced by a high concentration of 2-MIB.The highest concentration of 152.82 ng/L appeared in July in raw water,while GSM flocculation was minimal with concentrations below odor threshold.MA Xiaoyan GAO Naiyun CHEN Beibei LI Qingsong ZHANG Qiaoli GU Guofen 2007Frontiers of Environmental Science & Engineering2007,1,3:7
2Arthroscopically assisted reduction and immobilization of intra articular fracture of the distal end of the radius:several options of reduction and immobilization显示文摘Guofen C Doi K Hattori Y 2005Tech Hand UP Extrem Surg2005,9,:1
3A Method for Multiple Attribute Decision-Making with the Fuzzy Prefer- enee Relation on Alternatives 显示文摘FAN Zhiping HU Guofen XIAO Sihan 2004Elsevier: Computers & Industrial Engineering2004,46,2:1
4Loss/Down-Regulation of Tumor Suppressor in Lung Cancer 1 Expression Is Associated With Tumor Progression and Is a Biomarker of Poor Prognosis in Ovarian Carcinoma显示文摘Guofen Yang Weipeng He Muyan Cai Fei Luo Hsiangfu Kung Xinyuan Guan Yixin Zeng Dan Xie 2011International Journal of Gynecological Cancer2011,,3:1
5The design of a waveguide-eoxial line directional coupler显示文摘Wen Xiangwang Xu Meisheng Yu Guofen 1993International Journal of Electronics1993,74,1:1
6Loss/Down-Regulation of Tumor Suppressor in Lung Cancer 1 Expression Is Associated With Tumor Progression and Is a Biomarker of Poor Prognosis in Ovarian Carcinoma显示文摘Guofen Yang Weipeng He Muyan Cai Fei Luo Hsiangfu Kung Xinyuan Guan Yixin Zeng Dan Xie 2011International Journal of Gynecological Cancer2011,,3:1
7The design of a waveguide-coaxial line directional coupler显示文摘Wang Wenxiang Xu Meisheng Yu Guofen 1996Int J Electronics1996,74,1:1
8An optimization method for integrating two kinds of preference information in group decision-making显示文摘FAN Zhiping XIAO Sihan HU Guofen 2004Computers & Industrial Engineering2004,46,2:1
9Recovery of Cyanide from Wastewater Using Gas-filled Membrane Absorption 显示文摘Shen Zhisong Huang Jane Qian Guofen 1997Water Environ Res1997,69,3:1
10Mass-gathering medicine: a descriptive analysis of a range of mass-gathering event types 显示文摘Locoh-Donou Yan Guofen Melanie Welcher Thomas 2013Am J Emerg Med2013,31,5:1
11Antagonistic effects of berbamine onⅠ morbilization by KCl norepinephrine,and caffeine in newborn rat cardiomycytes显示文摘QIAN GUOFEN ZHOU HONG LI BAIYAN 1999Acta Pharmacol Sin1999,20,:1
12Application of 3D Visualization Technique in Tahe Oilfield显示文摘Yuan GuoFen Sun GuoFeng Zhang XunGuang 2008Xinjiang Geology2008,18,2:1
13Mode Discriminator Based on Mode-Selective Coupling 显示文摘Wang Wenxiang Gong Yubin Yu Guofen 2003IEEE Trans on MTT2003,51,1:1
14A method for multiple attribute decision-making with the fuzzy preference relation on alternatives 显示文摘FAN Zhiping HU Guofen XIAO Sihan 2004Computers & Industrial Engineering2004,46,2:1
15Review of the Novel Slow-Wave Structure for High-Power Tranveling-Wave Tube显示文摘Wang Wenxiang Wei Yanyu Yu Guofen 2003International Journal of Infrared and Millimeter Waves2003,24,:1
16Experimentalstudyaboutflowofliquidinrotatingpackedbed[J]显示文摘ZhanJun(张军) GuoKai(郭锴) GuoFen(郭奋) ZhuJiesong(竺洁松) ZhengChong(部冲) 髙校化学工程学报0,,:1
17On the Stability of the Functional Equation in Matrix β-Normed Spaces显示文摘In this paper we introduce the matrix β-normed space and study the stability of the additive-quadratic type functional equation and the Pexider type functional equation in this type of spaces.Xiuzhong YANG Guannan SHEN Guofen LIU 2016Journal of Mathematical Research with Applications2016,36,3:1
18The central approximation theorems for Baskakov-Bezier operators显示文摘Guo Shunsheng Qi Qiulan Liu Guofen 2007Approx Theory2007,147,:1
19Mode discriminator based on mode-selective coupling显示文摘Wang Wenxiang Gong Yubin Yu Guofen 2003IEEE Trans on MicrowaveTheory and Techniques2003,51,1:1
20Recovery of cyanide from wastewater using gas-filled membrane absorption显示文摘Shen Zhisong Huang Jane Qian Guofen 1997Water Environment Research1997,69,3:1
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