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:O614.82 文献标志码:A Solid phase extraction of palladium with hexyl benzimidazole sulfide resins HUANG Zhang-jie, CHEN Jing, XIE Ming-jin (School of Chemical Science..., in which HBMS coordinates with palladium(Ⅱ) via the imidazole N atom. The molar ratio of Pd(Ⅱ) to HBMS is 1?2. Key words: hexyl benzimidazole; platinum; palladium; solid phase extraction ......
J. Cent. South Univ. Technol. (2007)06-0798-05 DOI: 10.1007/s11771-007-0152-7 Synthesis of calixarenes and their extraction performance for ester catechins YI Jian-min(易健民)1,2...]arene) were synthesized, and their structures were identified by IR and 1H-NMR. The distribution behavior of ester catechins monomer in the aqueous and chloroform two-phase system containing one......
FORMATION OF MANGANESE SILICIDE THIN FILMS BY SOLID PHASE REACTION E.Q.Xie1,W.W.Wang1,D.Y.He1,N.Jiang1 (1.Department of Physics,Lanzhou University,Lanzhou 730000,China) Abstract:Manganese silicide MnSi2-x thin films have been prepared on n-type silicon substratesthrough solid phase reaction. The heterostructures were analyzed by X-ray diffraction,Rutherford backscattering spectroscopy, Fourier......
(SE) [3], liquid-liquid extraction (LLE) [4], solid-phase extraction (SPE) [5] and supercritical fluid extraction (SFE) [6]. These methods are effective in extraction of BPA. However, the SE and LLE... water samples. References [1] HADJMOHAMMADI M R, SAEIDI I. Determination of bisphenol A in Iranian packaged milk by solid-phase extraction and HPLC [J]. Monatsh Chem, 2010, 141(5): 501-506. [2] WU......
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potential is much higher than the proposed appropriate range (380-480 mV vs Ag/AgCl) with the solid waste added. There is a positive correlation between temperature and copper extraction rate. The kinetics... fraction, %) Table 2 Elements analysis of silver-bearing solid waste (mass fraction, %) As the microbial cultures grew to the exponential growth phase and meanwhile, the concentrations exceeded 1.0×107......
, respectively. The phase compositions of the red mud and the leaching residue were obtained by X–ray diffraction (XRD, D/max 2500v/pc, Cu Kα radiation). 2.2.2 Solvent extraction In the solvent extraction process, a certain amount of leaching solution was added to a separatory funnel with required volume of organic phase. In the extraction of iron, the organic phase included 15%(v/v) 2-Octanol......
to bacteria, and bacteria in this bioleaching system have to adapt to the environment firstly, it is a time called lag phase. All of these may influence the extraction of copper and iron by bacteria...J. Cent. South Univ. Technol. (2007)04-0467-07 DOI: 10.1007/s11771-007-0091-3 Isolation of Leptospirillum ferriphilum by single-layered solid medium LIU Jian-she(柳建设)1,2, XIE Xue-hui(谢学辉)1, XIAO......
二溴对氯偶氮氯膦固相萃取-分光光度法测定痕量钇李慧芝1,张瑾1,解文秀1,曹法全1(1.山东省济南市济南大学化学化工学院)摘 要:在pH3.0的盐酸-醋酸钠缓冲介质中,在甜菜碱存在下,二溴对氯偶氮氯膦(DBCC-PA)与钇Ⅲ反应生成摩尔比为2∶1的稳定络合物,该络合物可用阳离子交换树脂固相萃取柱富集,吸附柱上富集的络合物用乙醇+盐酸洗脱后用分光光度法测定.分离后的测定液中,络合物最大吸收波长为620 nm,表现摩尔吸光系数ε=1.065×105 L·mol-1·cm-1,钇Ⅲ含量在0~1.0μg/mL内符合比尔......
in the pulsed extraction column with the diameter of 38 mm on the condition of the TRPO-kerosene solution as the continuous phase and the flow ratio of 1∶1. Experimental results indicate that Ey evaluated... mixing characteristics was only reported by BARDIN-MONNIR and GUIRAUD[9] for pulsed extraction column with discs and doughnuts. The dispersed phase axial mixing coefficient, Ed, was simulated......
