|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Spectrofluorimetric determination of trace amounts of cadmium with 2,4-dihydroxyacetophenone benzoylhydrazone显示文摘A new fluorescent reagent 2,4-dihydroxyacetophenone benzoylhydrazone (DHAPBH) was synthesized and its ionization constants were established spectrophotometrically. The fluorescent reaction of this reagent with cadmium was studied. The cadmium ion can form a stable binary chelate with DHAPBH, having a mole ratio of 1:2 in the pH range of 3.6-4.4. Based on this chelation reaction, a highly sensitive spectrofluorimetric method was developed for determination of trace amounts of cadmium in a water-ethanol (7:3 in volume ratio) medium at pH = 4.0. Under these conditions, the Cd-DHAPBH complex has excitation and emission maxima at 306 and 437 nm, respectively. The linear range of the method is from 0.36 to 140 μg?L?1 and the detection limit is 0.27 μg?L?1 of cadmium. Interferences of other ions were stud- ied. The method was successfully applied to the determination of cadmium in mineral water, tap water, river water, and wastewater. | LIU Jianning ZHANG Bing WU Bowan LIU Yongchun YU Xinqiao | 2006 | Rare Metals2006，25，2： | 5 |
| 2 | Effect of Synthetic Method and Reductant on the Morphology and Photocatalytic Hydrogen Evolution Performance of Ru Nanoparticles显示文摘 | KONG Chao HAN Yanxia HOU Lijie CHEN Dongping WU Bowan | 2017 | Chemical Research in Chinese Universities2017，33，5： | 2 |
| 3 | Rapid and sensitive de- tection of methyl-parathion pesticide with an electropolymerized, molecularly imprinted polymer capacitive sensor 显示文摘 | Hui Li Zhihua Wang Bowan Wu et al | 2012 | Electrochimica Acta2012，62，： | 1 |
| 4 | Rapid and sensi- tive detection of methyl-parathion pesticide with an e显示文摘 | Li Hui Wang Zhihua Wu Bowan | 2012 | Electrochimica Acta2012，62，15： | 1 |
| 5 | Effects of Hydroxyl Groups in Organic Ammonium Counterions on the Properties of Fluorinated Surfactants显示文摘The surface tension, foaming and viscosity for C_7F_(15)COO^-N^+H(C_2H_4OH)_x(C_2H_5)_(3-x) and C_8F_(17)SO_3^-N^+H(C_2H_4OH)_x(C_2H_5)_(3-x)(x=0, 1,2, 3) were measured to systematically study the effects of hydroxyl groups in organic ammonium counterions on the properties of perfluorooctanoates and perfluorooctanesulfonates. The results showed that the critical micelle concentration (cmc) and the surface tension at cmc (γ_(cmc)) were both increased with the increase of number of hydroxyl groups (x) in the two series. The perfluorooctanesulfonate had smaller cmc but higherγ_(cmc) than perfluorooctanoate with the same counterion. The minimum molecular area of surface adsorption (A_(min)) of C_8F_(17)SO_3^-N^+H(C_2H_4OH)_x(C_2H_5)_(3-x) were 0.64, 0.57, 0.63 and 0.72 nm^2 while the A_(min) values of C_7F_(15)COO^-N^+H(C_2H_4OH)_x(C_2H_5)_(3-x) were 0.61, 0.62, 0.61 and 0.71 nm_2 when x=0, 1, 2 and 3,respectively. For the investigated systems of surfactants, the results of foam expansion ratio agreed with those of surface activity, while the 25% drainage time were consistent with the results of viscosity. | Zhang Tiantian Zhou Hongyu Wu Bowan Xiao Jinxin Xing Hang | 2017 | China Detergent & Cosmetics2017，2，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员