Results 31 to 40 of about 7,121 (176)

Towards a Non-Biased Formaldehyde Quantification in Leather: New Derivatization Conditions before HPLC Analysis of 2,4-Dinitrophenylhydrazine Derivatives

Molecules, 2020
In leathers, formaldehyde is currently analyzed according to EN ISO 17226-1 standard, by reversed phase liquid chromatography after off-line precolumn derivatization with 2,4 dinitrophenylhydrazine (DNPH) in strong acidic conditions. We first demonstrate
Caroline Bourgeois, Nicolas Blanc, Jean-Claude Cannot, Claire Demesmay   +3 more
doaj   +1 more source

Quality of Spontaneous and Backslopped Fermented Cassava Flour From Different Cassava Landraces and Sensory Acceptability of the Cooked Dough

Food Chemistry International, EarlyView.
The cooked Oko‐iyawo spontaneously fermented cassava flour's sensory acceptability was correlated with its amylose content, pH, pasting temperature, and water absorption capability. Cassava processors may be able to create consistently high‐quality fermented cassava flour for various end users with the use of the information provided in this study ...
Awoyale Wasiu, Yusuf O. Joshua, Irondi A. Emmanuel, Abdulrahman L. Ololade, Allie Georgiana, Olatoye K. Kazeem, Maziya‐Dixon Busie   +6 more
wiley   +1 more source

Alumophosphate binders: Synthesis, phase composition, thermal stability and application in foundry production

Results in Materials
Organic binders currently used in the foundry industry are highly toxic. During the pouring of casting molds, many volatile organic compounds are released, the vast majority of which are environmentally harmful.
Ivan Petryk, Rostyslav Liutyi, Irina Osypenko, Olexander Myslyvchenko, Ievgen Byba, Ivan Lukianenko   +5 more
doaj   +1 more source

Sur les esters phosphoriques

CHIMIA, 1961
Orthophosphoric acid can be clearly distinguished from carboxylic acids in it’s behaviour upon esterification as well as in the scission of its esters.
Emile Cherbuliez
doaj   +1 more source

Structural Construction of Binders Based on Orthophosphoric Acid and Refractory Materials

Advances in Materials Science and Engineering, 2021
The formation of phosphate binders in systems based on orthophosphoric acid and the most common refractory fillers in foundry technology (quartz dust, zircon ZrSiO4, and kyanite-sillimanite Al2SiO5) has not been previously studied.
R. Liutyi, D. Liuta, I. Petryk
doaj   +1 more source

TRIVIAL DENTAL: A Serious Board Game for Knowledge Consolidation in Dental Students Transitioning to Clinical Training

European Journal of Dental Education, EarlyView.
ABSTRACT Introduction The transition from preclinical education to clinical training represents a critical stage in dental curricula, requiring students to consolidate theoretical knowledge while preparing for clinical decision‐making. In this context, serious games have emerged as an innovative approach to promote active and collaborative learning ...
Vanessa‐Tévy Hansotte, Olivier Charleux, Aline Hartmann, Adeline Braud, Caroline Mocquot   +4 more
wiley   +1 more source

An Assessment of the Impact of Erbium Laser and Conventional Etching Techniques on Microleakage, Shear, and Microtensile Bond Strength of Hydrophobic and Hydrophilic Pit and Fissure Sealant – An In vitro Study

Journal of Indian Association of Public Health Dentistry
Purpose: In recent years, laser etching has emerged as an alternative to conventional acid etching for enamel surface pretreatment due to its drawbacks. This method can be used as a substitute for preparing pits and fissures before sealing.
Harshini Ravichandran, C Vishnu Rekha, Dhanraj Kalaivanan, Sumaiyya Saleem, Sai Sarath Kumar Kothimbakkam, A. K. R. Santhosh Priya   +5 more
doaj   +1 more source

Role of adjunctive methacryloyloxydecyl dihydrogen phosphate primers on dentin bond strength of universal adhesives under saliva and artificial aging

European Journal of Oral Sciences, EarlyView.
Abstract This study evaluated whether adjunctive 10‐methacryloyloxydecyl dihydrogen phosphate (MDP) primers enhance the microtensile bond strength (µTBS) of two universal adhesives (UAs) to dentin under artificial aging and repeated salivary contamination applied at each bonding step.
Marjorie Zanini, Amélie Mainjot, Stéphane Le Goff, Jean‐François Nguyen   +3 more
wiley   +1 more source

Structure, morphology and conductive properties of thermochemically activated carbon material from walnut shells

Фізика і хімія твердого тіла
The method of thermochemical activation with orthophosphoric acid was used to obtain porous carbon material from walnut shells. The effect of the activation temperature on the structural, morphological and conductive properties of the carbon material was
Nataliia Ivanichok, Bohdan Rachiy, Volodymyr Mandzyuk, Oleh Ivanichok, Taras Lysiv   +4 more
doaj   +1 more source

The Electropolishing of C-Steel in Orthophosphoric Acid Containing Methanolic Plant Extract

Journal of Chemistry, 2020
Plant extracts have been regarded as “green” alternatives as additives for metal electropolishing improvement. Therefore, understanding the electrochemical properties and the reaction mechanisms of the electroactive compounds from the plant extracts is ...
Asia A. Taha, Fatma M. Abouzeid, Mohamed M. Elsadek, Yasmeen M. Othman   +3 more
doaj   +1 more source