Results 21 to 30 of about 5,392 (242)

Enhanced Host‐Guest Association and Fluorescence in Copolymers from Copper Salphen Complexes by Supramolecular Internalization of Anions

open access: yesChemPlusChem, Volume 88, Issue 3, March 2023., 2023
One‐color cached light beacons. Fluorescence performance of a new Cu−Salphen coordination compound showed blue‐shifted turn‐on one‐order of magnitude higher luminescence when protected by copolymerization to acrylic monomers in chains of different sizes.
Paulina Hernández‐Pacheco   +5 more
wiley   +1 more source

Homoeopathic Medicines of Virginian Witch Hazel: Dosage Forms and Standardisation

open access: yesРегуляторные исследования и экспертиза лекарственных средств, 2023
According to the authors’ analysis of regulatory documents for homoeopathic medicines of Virginian witch hazel (Hamamelis virginiana L.), there is a need to transform quality assessment approaches and to unify analytical procedures for identification and
N. S. Teryoshina   +2 more
doaj   +1 more source

Water quality monitoring and hydraulic evaluation of a household roof runoff harvesting system in France [PDF]

open access: yes, 2012
The quality of harvested rainwater used for toilet flushing in a private house in the south-west of France was assessed over a one-year period. Twenty-one physicochemical parameters were screened using standard analytical techniques.
Huau, Marie-Christine   +5 more
core   +5 more sources

Biologically active properties of plant extracts in cosmetic emulsions [PDF]

open access: yes, 2020
Describes biologically active properties waters plant extracts of domestic herbaceous species as a part cosmetic emulsion in this article. In particular, the antioxidant features related to vitamins, flavonoids, coloring, extractive and tannins were ...
Harhaun, Ruslana   +3 more
core   +1 more source

The computerized determination of double-layer capacitance with the use of kalousek-type waveforms and its application in titrimetry [PDF]

open access: yes, 1980
A method for the rapid determination of double-layer capacitance—potential curves of electrodes is described. An on-line computer is used to apply Kalousek-type waveforms to the electrochemical cell and to measure the accompanying current response.
Bos, M.
core   +3 more sources

Development of a ‘drop-count’ method for the screening of the ethanol content in hand sanitisers using oxalic acid and potassium permanganate titrimetry

open access: yesOrapuh Journal, 2022
Introduction The demand for ethanol-based sanitisers has increased dramatically since the dawn of the COVID-19 era, making it very difficult for health regulators to ensure the quality of the products and the safety of unsuspecting consumers.
Kaneoa E. Monts’o   +5 more
doaj   +1 more source

Acid-free microwave-assisted hydrothermal extraction of pectin and porous cellulose from mango peel waste-towards a zero waste mango biorefinery : Towards a Zero Waste Mango Biorefinery [PDF]

open access: yes, 2016
Mango is the second most consumed tropical fruit after banana and the by-products of mango processing (peel, kernel and seed) roughly comprise 35-60% of the total fruit weight, thus representing a potentially high volume resource of exploitable biobased ...
Houghton, Joseph A.   +3 more
core   +4 more sources

Effect of wood aging on wine mineral composition and 87Sr/86Sr isotopic ratio [PDF]

open access: yes, 2017
The evolution of mineral composition and wine strontium isotopic ratio 87Sr/86Sr (Sr IR) during wood aging were investigated. A red wine was aged in stainless steel tanks with French oak staves (Quercus sessiliflora Salisb.), with three industrial ...
Catarino, Sofia   +4 more
core   +1 more source

Degree of Chitosan Deacetylation: Potential of Experimental Equations Application [PDF]

open access: yesKemija u Industriji
In recent years, research has extensively explored the broad industrial potential of chitosan, with the degree of deacetylation being a pivotal chemical attribute that significantly influences its physical and biological properties crucial for its ...
Nadežda Seratlić   +5 more
doaj   +1 more source

Electroanalytical determination of codeine in pharmaceutical preparations [PDF]

open access: yes, 2002
A square wave voltammetric (SWV) method and a flow injection analysis systemwi th electrochemical detection (FIA-EC) using a glassy carbon electrode were evaluated for the determination of codeine in pharmaceutical preparations.
Borges, Fernanda   +4 more
core   +1 more source

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