Results 31 to 40 of about 27,262 (255)

Lanthanum biosorption by different Saccharomyces cerevisiae strains [PDF]

, 2016
Biosorption can be a promising technology in rare earth metal separation and recovery due to the low costs of waste biomasses (used as biosorbents) and the high selectivity exploiting specific interaction between metals and biological active sites.
Altimari, Pietro, DI CAPRIO, Fabrizio, Pagnanelli, Francesca, Toro, Luigi, Uccelletti, Daniela, Zanni, Elena   +5 more
core   +1 more source

"Determination of zinc ion content in zinc-containing curing activator by potentiometric titration"

Hecheng xiangjiao gongye
Using Na2EDTA solution as titrant, copper ion-selective electrode as indicator electrode, Ag/AgCl electrode as reference electrode, zinc ion content in zinc-containing curing activator was determined by potentiometric titration.
"YANG Na1,2, DING Xin-yan1,2, CHANG Hui-juan1,2, MU Hong-shuai1, NI Zi-zhen1,2, LIU Guo-jun1,2, WANG Jin1,2"
doaj   +1 more source

STUDY THE CHARACTERISTIES Of VARIABLE CHARGES OF SOME SELECTED SOILS FROM NORTHERN IRAQ [PDF]

Mesopotamia Journal of Agriculture, 2019
This study was carried out in three selected areas from North Iraq included (Makhmour, Shikhan and Zakho).these location Varied in annual temperature and rainfall .Nine soil samples were collected from three soil profiles (one soil profile from each ...
Saleh Mawlood, Qahtan D. Essa
doaj   +1 more source

An investigation of the functional groups on the surface of activated carbons [PDF]

Journal of the Serbian Chemical Society, 2004
Activated carbons were produced in the laboratory from wood using a 20-run Plackett–Burman experimental design for 19 factors. The obtained batches of activated carbon were analysed by potentiometric titration and FTIR spectroscopy to determine the ...
MARYTE DERVINYTE, JURGIS BARKAUSKAS
doaj  

A Complementary and Revised View on the N-Acylation of Chitosan with Hexanoyl Chloride

Marine Drugs, 2021
The modification of the biobased polymer chitosan is a broad and widely studied field. Herein, an insight into the hydrophobization of low-molecular-weight chitosan by substitution of amino functionalities with hexanoyl chloride is reported. Thereby, the
Berthold Reis, Niklas Gerlach, Christine Steinbach, Karina Haro Carrasco, Marina Oelmann, Simona Schwarz, Martin Müller, Dana Schwarz   +7 more
doaj   +1 more source

Potentiometric Titration Based on the Reference Electrode Equipped with Ionic Liquid Salt Bridge — 1. Precipitation Titration of Chloride with Silver Ions in Water

Electrochemistry, 2023
A reference electrode equipped with ionic liquid salt bridge consisting of tributyl(2-methoxyethyl)phosphonium bis(pentafluoroethanesulfonyl)amide has been employed for potentiometric precipitation titration of chloride with silver ions in water at 25 °C.
Takashi KAKIUCHI, Ryunosuke TANIGO, Atsushi TANI, Takeshi YAMAZAKI, Kohta KOMATSUBARA, Keiji NAKANO, Masahiro YAMAMOTO   +6 more
doaj   +1 more source

Isohexide and sorbitol-derived, enzymatically synthesized renewable polyesters with enhanced Tg [PDF]

, 2016
Sugar-based polyesters derived from sorbitol and isohexides were obtained via solvent-free enzymatic catalysis. Pendant hydroxyl groups, coming from the sorbitol units, were present along the polyester backbone, whereas the two isohexides, namely ...
Gustini, Liliane, Koning, Cor, Lavilla, Cristina, Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon, Muñoz Guerra, Sebastián   +4 more
core   +2 more sources

Single Solid‐State Ion Channels as Potentiometric Nanosensors

Advanced Functional Materials, EarlyView.
Single gold nanopores functionalized with mixed self‐assembled monolayers act as solid‐state ion channels for direct, selective potentiometric sensing of inorganic ions (Ag⁺). The design overcomes key miniaturization barriers of conventional ion‐selective electrodes by combining low resistivity with suppressed loss of active components, enabling robust
Gergely T. Solymosi, Gyula Jágerszki, Levente Illés, Péter Fürjes, Róbert E. Gyurcsányi   +4 more
wiley   +1 more source

Photothermal Macroporous Lignin Cryogels for Off‐Grid, Continuous Atmospheric Water Collection via Interlayer Heat Recovery

Advanced Functional Materials, EarlyView.
Photothermal, macroporous lignin‐based cryogels are engineered to convert sunlight into low‐grade heat. Integrated as stacked beds in a drum‐type device, a thin copper interlayer transfers waste heat between beds, enabling interlayer heat recovery and continuous solar cycling.
Jie Yan, Jiqing Lu, Tian Bai, Lin Li, Zhaoxuan Niu, Yiying Yue, Wanli Cheng, Guangping Han, Orlando J. Rojas   +8 more
wiley   +1 more source

A procedure for the determination of proteolytic activity [PDF]

, 1950
The difficulties introduced by the desire to maintain a constant pH during an enzyme-catalyzed hydrolysis of peptide-like substrates and at the same time to determine the extent of hydrolysis by an acid-base titration have been pointed out (1), but to ...
Iselin, Beat M., Niemann, Carl
core