Results 41 to 50 of about 397,097 (299)

Development of fast ion chromatography [PDF]

, 2005
Fast ion chromatography has been applied to short (3 cm) silica based ODS columns with a view to achieving rapid determinations of selected inorganic anions.
Connolly, Damian
core  

Sample preparation in ion-chromatography

, 1979
lon-chromatography, a relatively new technique in analytical chemistry, has already shown great promise toward solving complex trace analysis problems, in particular the speciation and quantitation of anions.
Koch, W.F.
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Preliminary investigations of plasma lipidome and selenium levels in adults with treated hypothyroidism and in healthy individuals without selenium deficiency

Scientific Reports
The present preliminary study aimed to provide a targeted lipidomic analysis of Hashimoto (HT) and non-HT patients with well-controlled hypothyroidism as well as in healthy adults, and is the first to demonstrate the association of several components of ...
Anna Błażewicz, Julia Wojnicka, Andreas M. Grabrucker, Piotr Sosnowski, Alicja Trzpil, Anna Kozub-Pędrak, Klaudia Szałaj, Agnieszka Szmagara, Ewelina Grywalska, Katarzyna Skórzyńska-Dziduszko   +9 more
doaj   +1 more source

High Resolution Chemical Stratigraphies of Atmospheric Depositions from a 4 m Depth Snow Pit at Dome C (East Antarctica)

Atmosphere, 2021
In this work, we present chemical stratigraphies of two sampling lines collected within a 4 m depth snow pit dug in Dome C during the Antarctic summer Campaign 2017/2018, 12 years after the last reported snow pit. The first sampling line was analyzed for
Laura Caiazzo, Silvia Becagli, Stefano Bertinetti, Marco Grotti, Silvia Nava, Mirko Severi, Rita Traversi   +6 more
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Clinical relevance of tissue copper, selenium, and cadmium alterations in colorectal cancer

Scientific Reports
Imbalances in essential elements and altered levels of toxic elements are thought to play a role in colorectal cancer (CRC) development. This study assessed the concentrations of selected elements in CRC tissues and explored their associations with ...
Michał Kiełbus, Julia Wojnicka, Andrzej Prystupa, Grzegorz Józef Nowicki, Agnieszka Urbańczyk, Bartłomiej Prystupa, Paweł Kiciński, Wojciech Myśliński, Barbara Ślusarska, Agnieszka Szmagara, Anna Błażewicz   +10 more
doaj   +1 more source

Moringa oleifera (drumstick tree)—nutraceutical, cosmetological and medicinal importance: a review

Frontiers in Pharmacology
Moringa oleifera Lam. (Moringaceae) is a species of tree with an increasing utility, occurring naturally mainly in Pakistan and northern India. M. oleifera is currently cultivated in Africa, South America, Asia and the Middle East.
Marta Klimek-Szczykutowicz, Katarzyna Gaweł-Bęben, Angelika Rutka, Eliza Blicharska, Małgorzata Tatarczak-Michalewska, Katarzyna Kulik-Siarek, Wirginia Kukula-Koch, Magdalena Anna Malinowska, Agnieszka Szopa   +8 more
doaj   +1 more source

Antimicrobial activity of endophytic fungi Kabatiella caulivora Var. A from Alyxia reinwardtii Bl.

Journal of Biological Researches, 2012
Isolation and characterization of β-1,3-endoglucanase from cabbage (Brassica oleracea var. capitata L.) have been done. It showed 40° C of optimum temperature, and optimum pH is 7.
Y. Sri Wulan Manuhara
doaj   +1 more source

Development of Analytical Methods for the Determination of N-Bromosuccinimide in Different Active Pharmaceutical Ingredients by High-Performance Ion Chromatography with Suppressed Conductivity Detection

Separations, 2022
Product safety is important for medicines. For drugs on the market, it must be demonstrated that the levels of toxic contaminants are below the permitted limits. These impurities are used as reagents or are generated during synthesis.
Boglárka Páll, Imre Kapui, Róbert Kormány, Krisztián Horváth   +3 more
doaj   +1 more source