Results 51 to 60 of about 27,262 (255)

Some of the oxidation-reduction properties of the chorionic gonadotropic hormone [PDF]

, 1941
Gurin, Bachman, and Wilson (1-3) have recently made important contributions to our knowledge of the chemical nature of the gonadotropic hormone of pregnancy urine.
Bowman, Donald E.
core  

Probing a Complex of Cytochromecand Cardiolipin by Magnetic Circular Dichroism Spectroscopy: Implications for the Initial Events in Apoptosis [PDF]

, 2011
Oxidation of cardiolipin (CL) by its complex with cytochrome c (cyt c) plays a crucial role in triggering apoptosis. Through a combination of magnetic circular dichroism spectroscopy and potentiometric titrations, we show that both the ferric and ferrous
Armstrong F. A., Barker P. D., Basova L. V., Battistuzzi G., Battistuzzi G., Belikova N. A., Belikova N. A., Bradley J. M., Bushnell G. W., Cheesman M. R., Cheesman M. R., Ferrer J. C., Foote N., Gadsby P. M. A., Gadsby P. M. A., Gary Silkstone, Hendriks J. H. M., Jing W. G., Julea N. Butt, Justin M. Bradley, Kagan V. E., Kagan V. E., Kalanxhi E., Kapetanaki S. M., Kapralov A. A., Marritt S. J., Michael T. Wilson, Millis K. K., Myles R. Cheesman, Nantes I. L., Oganesyan V. S., Petrovic J., Pettigrew G. W., Pond A. E., Rawlings J., Rigby S. E. J., Rytomaa M., Salamon Z., Sinibaldi F., Sutherland J., Tezcan F. A., Wackerbarth H., Zucchi M. R.   +42 more
core   +1 more source

Equations for potentiometric titration [PDF]

Journal of Chemical Education, 1968
Examines some difficulties arising with assumptions made in a previously published experiment.
Ann Lomax, Allen J. Bard
openaire   +1 more source

Ocean acidification at the crossroads I: Harmonizing unpurified and purified meta‐cresol purple spectrophotometric pHT measurements based on absorbance data

Limnology and Oceanography: Methods, EarlyView.
Abstract Consistent monitoring of seawater spectrophotometric pH on the total hydrogen ion scale (pHT) has been questioned by an evolving method, with changes in parameterization and the purity of the meta‐cresol purple (mCP). Using real seawater samples, we demonstrate that spectrophotometric pHT measurements obtained with unpurified (UNPUR) and ...
Marta Álvarez, Maribel I. García‐Ibáñez, Rubén Acerbi, Rocío Santiago‐Domenech, Elisa F. Guallart, Noelia M. Fajar, Lisandro Arbilla   +6 more
wiley   +1 more source

THIOCYANATE ION-SELECTIVE PVC MEMBRANE ELECTRODE [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2010
A potentiometric selective sensor based on trinuclear chromium(III) complex as a novel ionophore for the thiocyanateselective electrode is reported. The sensor displays a near Nernstian slope of 57 ± 2 mV per decade, over a wide pH range 3 - 11.
Mihail Revenco, Mariana Martin, Waell Abu Dayyih   +2 more
doaj  

Application of Automatic Potentiometric Titrator in Continuous Titration of Six Indices in Groundwater

Yankuang ceshi, 2018
BACKGROUND The analysis of six indices (pH, total alkalinity, chloride ion, calcium ion, magnesium ion and sulfate radical) in underground water needed to be sampled separately for each index. The steps were tedious with low efficiency.
ZHAO Wen-jie, MA Ming, ZHANG Ke, LI Yan-xiang, HOU Ming-lan, ZHANG Yu-qiang   +5 more
doaj   +1 more source

Diagrams of the formation of In2S3 and In 2Se3 films on vitroceramic upon precipitation, according to potentiometric titration [PDF]

, 2013
Boundary conditions and ranges of the formation of indium(III) sulfide and selenide upon precipitation by thiocarbamide and selenocarbamide are determined.
Bakhteev, S. A., Markov, V. F., Maskaeva, L. N., Tulenin, S. S., Yusupov, R. A.   +4 more
core   +1 more source

Effect of Two Therapeutic Renal Diets on Hormonal and Regulatory Pathways Affecting Calcium Homeostasis in Cats With Early‐Stage Chronic Kidney Disease

Journal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Chronic kidney disease (CKD) is a known risk factor for hypercalcemia in cats. Phosphate‐restricted diets have also been implicated in causing hypercalcemia, in part because phosphate restriction increases the Ca:P ratio. The primary objective of this study was to evaluate the impact of two different therapeutic renal foods on ionized (iCa ...
Jean A. Hall, Elizabeth M. Morris, Dale A. Fritsch, John J. Brejda, Kim M. Wilson   +4 more
wiley   +1 more source

Anthropogenically Stimulated Carbonate Dissolution in the Global Shelf Seafloor Is Potentially an Important and Fast Climate Feedback

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Carbonate mineral production and dissolution regulate atmospheric carbon dioxide (CO2) concentrations via modulation of the ocean alkalinity content. The anthropogenic rise in atmospheric CO2 reduces calcification rates and enhances calcium carbonate dissolution, which increases ocean alkalinity, counteracts acidification, and stimulates ocean
Sebastiaan J. van de Velde, Pam Vervoort, Robert O. Smith, Cliff S. Law, Kim Currie   +4 more
wiley   +1 more source

Modelling and optimization of surfactant sensor response characteristics for the use in surface water and wastewater analysis

Zaštita Materijala, 2014
The theoretical model of potentiometric titration curves of sodium dodecyl sulfate (anionic surfactant) was proposed and the response parameters of two surfactant sensors (commercial and self-made) were investigated.
Stanisavljev Ana Komanović, Grujić Aleksandra Perić, Bosnar Milan Sak   +2 more
doaj   +1 more source