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51.
Tadashi Uragami Shizuharu Watanabe Mizuho Sugihara 《Journal of polymer science. Part A, Polymer chemistry》1982,20(5):1193-1202
Ion exchange membranes with carboxyl groups, which were insoluble in acidic and alkaline aqueous solutions, were prepared from poly(isobutylene-alternative co-maleic anhydride) and poly(vinyl alcohol). When a membrane, one side of which was alkaline, the other, acidic, was fixed in a diaphragm cell, it transported organic ions, such as amino acids and aniline, from the acidic to the alkaline side or vice versa. The passage of organic ions through the membrane was governed by an electrochemical interaction between carboxyl groups in the membrance and transporting ions. The direction of the organic ions depended on a pH difference between the two sides of the membrane. 相似文献
52.
Mitsuhiro Kanakubo Tomoyuki Uda Haruko Ikeuchi Gen P. Satô 《Journal of solution chemistry》1998,27(7):645-653
Cobalt-59 NMR chemical shifts of Co(acac)3, and Co(dpm)3 (acac– = acetylacetonate ion and dpm– = dipivaloylmethanate ion) in 14 organic solvents, C6H14, C6H6, CH2Cl2, CHCl3, CCl4, CH3CN, CH3OH, C2H5OH, CH3CH(OH)CH3, (C2H5)2O, (CH3)2CO, (CH3)2SO, (CH3)2NCHO and C6H5NO2, were measured at five temperatures ranging from 289 to 329 K. The observed chemical shift (obs) was linearly correlated to the maximum absorption wavelength in the visible spectra (max) corresponding to the d-d electronic transition energy between the ground 1A1g and excited 1T1g states. The obs-max relation was explained by the ligand field theory. The temperature coefficients of obs, of each complex showed a negative correlation with obs. The obs, of Co(acac)3 decreased with the increasing electrophilic ability of the solvent (Mayer's acceptor number), whereas no tendency was observed in the case of Co(dpm)3. 相似文献
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Shizuo Fujiwara Kozo Shirato Norio Higuchi Mizuho Maekawa Naoto Shimetani Sunao Watanabe Ikunosuke Sakurabayashi 《Analytical sciences》2008,24(6):813-815
A new apparatus has been built that annexes a normal electrocardiograph, ECG, with the aim to enhance its capacity. It adds the normal ECG power to superpose multiple records of ECG altogether and averages out them and, further, makes sophisticated analysis, such as normalizing the peak heights, evaluating the half-line widths of the peaks, or that of the standard deviations of measurements like the inter peak distances. The results of the said calculations have not been obtainable using the former instruments, and are expected to be useful for clinicians. 相似文献
55.
A Hiraoka I Miura M Sat? I Tominaga M Hattori 《Chemical & pharmaceutical bulletin》1992,40(6):1629-1630
Effects of four anti-epileptic drugs (AED; phenobarbital, phenytoin, carbamazepine and sodium valproate) on the L-tryptophan binding to human serum albumin were studied. Among these drugs examined, only sodium valproate inhibited the binding even within the concentrations of its therapeutic range, and the Klotz plotting analysis revealed that the inhibition was competitive. The results of examinations with sera from epileptic patients medicated with these AED and drug-free normal controls also suggested that the protein binding ratios of L-tryptophan were decreased in the blood plasma of some patients with the high valproate concentrations and the low albumin contents. 相似文献
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Thermolyses of cage lactones () and their corresponding lactols () cause a formal dyotropic rearrangement. These novel reactions in cage system are discussed. 相似文献
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