Results 51 to 60 of about 5,586 (187)
Journal of the American Ceramic Society, Volume 109, Issue 3, March 2026.ABSTRACT We investigate sodium silicate glasses modified with Ce2O3 and La2O3 to explore the interplay between optical absorption, structure, and macroscopic properties. Ce doping drives a pronounced red‐shift of the absorption edge into the visible region (> 500 nm), arising from O2− →$ \to $ Ce4+ charge‐transfer and intervalence transitions ...
Minghui Sun +3 more
wiley +1 more source
Potentiometric Titration of Polyelectrolytes
Kobunshi Kagaku, 1958 グリオキシル酸による部分アセタール化ポリビニルアルコール(以下PVAGと略称) の電圧滴定実験を行い, Hermansらが指摘している関係が成立することを認めた。これよりPVAGの解離指数を決定した。ii) 滴定実験より得られる静電自由エネルギー変化から別に報告する取扱を利用して球形と仮定したときの高分子イオン半径の算出を試みた。それによればイオン半径は濃度の上昇とともに著しく減少するという結果を得た。iii) 泳動実験によって決定されるポテンシャルと滴定実験によって与えられるポテンシャルとを比較し, 両者にかなりの差異を認めた。これは前者が表面ポテンシャルを, 後者が高分子イオン内部のポテンシャルの平均値を与えているものと考えることにより一応説明された。
Ichiro Sakurada, Norio Ise, Msao Hosono
openaire +2 more sources
Biotechnology and Applied Biochemistry, Volume 73, Issue 1, Page 14-27, February 2026.ABSTRACT In this study, novel thiosemicarbazone derivative molecules (5a–j) were synthesized. The characterization of the synthesized molecules was carried out using 1H–, 13C–NMR, FT–IR, and Q–TOF spectroscopic techniques. Then, the inhibitory effect of these compounds was examined for human carbonic anhydrase I and II (hCA I, and II) and ...
Hayreddin Gezegen +4 more
wiley +1 more source
Automatic Potentiometric Titrations
Transactions of The Electrochemical Society, 1947 Potentiometric titration procedure is described briefly and the application of the potentiometric method to both analytical and general research work is discussed. Instrumentation for the potentiometric titration is reviewed with particular emphasis on automatic apparatus developments tending to simplify the use of the potentiometric method.
openaire +1 more source
DETERMINATION OF TETRAFLUOROBORATE BY POTENTIOMETRIC TITRATION
Вестник Кемеровского государственного университета, 2015 The new method for determination of tetrafluoroborate by potentiometric titration is presented. The method is based on the hydrolysis of the tetrafluoroborate anion in water solutions and it takes into account the appropriate correction factor.
R. Sh. Khaliullin, E. V. Leonteva
doaj
International Journal of Electrochemical Science, 2011 The homologous tallow fatty alcohol and oleyl alcohol ethoxylates were investigated using a PVC liquid surfactant sensor based on 1,3-didecyl-2-methylimidazolium-tetraphenylborate as a sensing element and bis(2-ethylhexyl) phthalate as a plasticizer. The
Dubravka Madunić-Čačić +1 more
doaj +1 more source
Advances in Materials Science and EngineeringThe aim of this work was to evaluate the effect of molybdenum doping on the acidic and catalytic properties of ZrO2 support, the precursor hydroxide of ZrO2 (Zr(OH)4) was synthesized and modified with 5, 10, and 15 wt% of molybdenum, and the synthesized ...
Alberto Hernández-Zapién +5 more
doaj +1 more source
Acid-base potentiometric titration using a stainless steel electrode without oxidative treatment. [PDF]
Turk J Chem, 2023 Vilasó-Cadre JE +5 more
europepmc +1 more source
Journal of Excipients and Food Chemicals, 2016 The degree of deacetylation (DDA) of various low molecular weight chitosan (LMWC) species as the hydrochloride and free base (amine form) was determined by direct and back potentiometric titration, respectively.
Kamal Sweidan +5 more
doaj
Two Versatile Pencil Graphite-Polymer Sensor Electrodes Coupled with Potentiometry and Potentiometric Titration Methods: Profiling Determinations of Vitamin V in Tablets and Urine Samples. [PDF]
Sensors (Basel), 2022 Hassan AME +5 more
europepmc +1 more source