Results 31 to 40 of about 1,109 (174)

Concept of Recycling‐on‐Demand Investigated on Linear Poly(Ester‐Co‐Acetal)s

Macromolecular Materials and Engineering, Volume 311, Issue 1, January 2026.
Recycling‐on‐demand (ROD) of polymers into valuable oligomeric building blocks introduces an important step toward a circular economy. Here, poly(ester‐co‐acetal)s (PEAs) serve as a representative model system demonstrating a full proof of concept for the proposed ROD procedure, where the original oligoester is fully retained after degradation and ...
Florian Cramer, Pauline Shamraienko, Brigitte Voit   +2 more
wiley   +1 more source

Equivalence assessment of quantitative tannins determination methods, used for analysis of herbal drugs

Регуляторные исследования и экспертиза лекарственных средств, 2018
The article describes results of comparative evaluation of two pharmacopoeial methods used for quantitative determination of tannins in herbal drugs: the titrimetric method of the State Pharmacopoeia of the USSR (XIth edition) that is described in the ...
N. P. Antonova, A. M. Kalinin, S. S. Prohvatilova, E. P. Shefer, T. E. Matveenkova   +4 more
doaj  

Greenhouse Gas Emissions From a Large and Shallow Tropical African Lake: Contribution of Different Gases and Emission Pathways

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 10, October 2025.
Abstract Globally, nutrient enriched water bodies are major contributors to the aquatic greenhouse gases (GHG) efflux to atmosphere. However, few efforts have focused on assessing the contribution from coastal transitional ecosystems in Africa. To improve our knowledge of these systems, we investigated emissions in Lake Nokoué, a coastal lagoon in ...
S. K. d. L. Ague, K. Rinke, D. Mama, M. Koschorreck   +3 more
wiley   +1 more source

Microtitrimetric determination of a drug content of pharmaceuticals containing olanzapine in non-aqueous medium [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2009
Two simple, rapid, reliable and cost-effective methods based on titrimetry in non-aqueous medium are described for the determination of olanzapine in pharmaceuticals.
KANAKAPURA BASAVAIAH, NAGARAJU RAJENDRAPRASAD, KANAKAPURA BASAVAIAH VINAY   +2 more
doaj  

Safety of rapeseed protein–fibre concentrate as a novel food pursuant to Regulation (EU) 2015/2283

EFSA Journal, Volume 23, Issue 9, September 2025.
Abstract Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on the safety of rapeseed protein‐fibre concentrate as a novel food (NF) pursuant to Regulation (EU) 2015/2283.
EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA), Dominique Turck, Torsten Bohn, Montaña Cámara, Jacqueline Castenmiller, Stefaan De Henauw, Ángeles Jos, Alexandre Maciuk, Inge Mangelsdorf, Breige McNulty, Androniki Naska, Kristina Pentieva, Alfonso Siani, Frank Thies, Margarita Aguilera‐Gómez, Thomas Frenzel, Harry J. McArdle, Peter Moldeus, Monika Neuhäuser‐Berthold, Morten Poulsen, Miguel Prieto Maradona, Josef Rudolf Schlatter, Henk van Loveren, Marcello Laganaro, Emanuela Turla, Anna‐Maria Pieger, Karen Ildico Hirsch‐Ernst   +27 more
wiley   +1 more source

Development of a new ferulic acid certified reference material for use in clinical chemistry and pharmaceutical analysis

Acta Pharmaceutica Sinica B, 2015
This study compares the results of three certified methods, namely differential scanning calorimetry (DSC), the mass balance (MB) method and coulometric titrimetry (CT), in the purity assessment of ferulic acid certified reference material (CRM).
Dezhi Yang, Fengfeng Wang, Li Zhang, Ningbo Gong, Yang Lv   +4 more
doaj   +1 more source

Permanganometric determination of etamsylate in bulk drug and in tablets [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2009
One titrimetric and two spectrophotometric methods which are simple, selective, sensitive, accurate, precise and economical for the determination of etamsylate (ETM) in bulk drug and in tablets employing permanganate as the oxidimetric reagent are ...
K.B. Vinay, H.D. Revanasiddappa, O.Z. Devi, K. Basavaiah   +3 more
doaj  

Re‐evaluation of saccharin and its sodium, potassium and calcium salts (E 954) as food additives

EFSA Journal, Volume 22, Issue 11, November 2024.
Abstract This opinion deals with the re‐evaluation of saccharin and its sodium, potassium and calcium salts (E 954) as food additives. Saccharin is the chemically manufactured compound 1,2‐benzisothiazol‐3(2H)‐one‐1,1‐dioxide. Along with its sodium (Na), potassium (K) and calcium (Ca) salts, they are authorised as sweeteners (E 954).
EFSA Panel on Food Additives and Flavourings (FAF), Laurence Castle, Monica Andreassen, Gabriele Aquilina, Maria Lourdes Bastos, Polly Boon, Biagio Fallico, Reginald FitzGerald, Maria Jose Frutos Fernandez, Bettina Grasl‐Kraupp, Ursula Gundert‐Remy, Rainer Gürtler, Eric Houdeau, Marcin Kurek, Henriqueta Louro, Patricia Morales, Sabina Passamonti, Monika Batke, Ellen Bruzell, James Chipman, Karlien Cheyns, Riccardo Crebelli, Cristina Fortes, Peter Fürst, Thorhallur Halldorsson, Jean‐Charles LeBlanc, Manuela Mirat, Oliver Lindtner, Alicja Mortensen, Evangelia Ntzani, Romina Shah, Heather Wallace, Matthew Wright, Stefania Barmaz, Consuelo Civitella, Petra Georgelova, Federica Lodi, Elena Mazzoli, Josef Rasinger, Ana Maria Rincon, Alexandra Tard, Panagiota Zakidou, Maged Younes   +42 more
wiley   +1 more source

Safety of vitamin D2 mushroom powder as a Novel food pursuant to Regulation (EU) 2015/2283 (NF 2020/2226)

EFSA Journal, Volume 22, Issue 6, June 2024.
Abstract Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on vitamin D2 mushroom powder as a novel food (NF) pursuant to Regulation (EU) 2015/2283.
EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA), Dominique Turck, Torsten Bohn, Jacqueline Castenmiller, Stefaan De Henauw, Karen Ildico Hirsch‐Ernst, Alexandre Maciuk, Inge Mangelsdorf, Harry J. McArdle, Androniki Naska, Kristina Pentieva, Alfonso Siani, Frank Thies, Sophia Tsabouri, Marco Vinceti, Margarita Aguilera‐Gómez, Francesco Cubadda, Thomas Frenzel, Marina Heinonen, Rosangela Marchelli, Monika Neuhäuser‐Berthold, Morten Poulsen, Miguel Prieto Maradona, Josef Rudolf Schlatter, Alexandros Siskos, Henk van Loveren, Katerina Gerazova‐Efremova, Ruth Roldán‐Torres, Helle Katrine Knutsen   +29 more
wiley   +1 more source

Application of Optical Hydrogels in Environmental Sensing

ENERGY &ENVIRONMENTAL MATERIALS, Volume 7, Issue 3, May 2024.
The review elaborates on optical hydrogels from three perspectives: the construction technologies for sensors, the role of different hydrogels in sensors, and the different environmental sensing mechanisms. The detection performance and potential of various types of optical hydrogels in different environmental pollutant detection are evaluated by ...
Shuo Yang, Shruti Sarkar, Xing Xie, Dan Li, Jianmin Chen   +4 more
wiley   +1 more source