Results 1 to 10 of about 274,979 (246)

Validation and Determination of Tamsulosin Hydrochloride Residue in Production Line Equipment by HPLC after In-tube Solid Phase Microextraction [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2023
Ensuring about the cleanliness of the product line is a major approach on famous pharmaceutical companies. The aim of this study is validation of in-tube SPME (IT-SPME) method coupled with HPLC-UV for microextraction and determination of tamsulosin ...
Afsaneh Mollahosseini   +2 more
doaj   +1 more source

Sensitive detection of tamsulosin hydrochloride based on dual-emission ratiometric fluorescence probe consisting of amine-carbon quantum dots and rhodamine B

open access: yesScientific Reports, 2021
In this work, amine-carbon quantum dots (CQDs)/rhodamine B (RhB) ratiometric fluorescent (RF) sensor was employed for effective and selective determination of tamsulosin hydrochloride (TMS) based on a dual-emission fluorescence system.
Aida Mousavi   +2 more
doaj   +1 more source

Chloropinane and Chloromenthene as Novel Solvents for Solubilisation of Natural Substances

open access: yesMolbank, 2021
Chloropinane and chloromenthene, synthesized from pinene and limonene, respectively, were compared with their non-halogenated analogs and n-hexane for their ability to solubilize natural products of interest such as β-carotenoids, vanillin, and ...
Mohamed Touaibia   +2 more
doaj   +1 more source

Antifungal alkaloids from Mahonia fortunei against pathogens of postharvest fruit

open access: yesNatural Products and Bioprospecting, 2023
Postharvest pathogens can affect a wide range of fresh fruit and vegetables, including grapes, resulting in significant profit loss. Isoquinoline alkaloids of Mahonia fortunei, a Chinese herbal medicine, have been used to treat infectious microbes, which
Xiao-Na Wang   +7 more
doaj   +1 more source

Total synthesis of justicidin B, justicidin E, and taiwanin C: A general and flexible approach toward the synthesis of natural arylnaphthalene lactone lignans

open access: yesFrontiers in Chemistry, 2022
Lignans are widely present in traditional medicinal plants. Many natural arylnaphthalene lactone lignans (NALLs) isolated from the genera Justicia, Haplophyllum, and Phyllanthus possess interesting biological activities.
Kai Wei   +8 more
doaj   +1 more source

Diterpenoids inhibit ox-LDL-induced foam cell formation in RAW264.7 cells by promoting ABCA1 mediated cholesterol efflux

open access: yesFrontiers in Pharmacology, 2023
Introduction: Atherosclerosis is the main cause of many cardiovascular diseases and contributes to morbidity and mortality worldwide. The formation of macrophage-derived foam cells plays a critical role in the early stage of atherosclerosis pathogenesis.
Cheng Zhang   +12 more
doaj   +1 more source

A novel method for extracting metals from asteroids using non-aqueous deep eutectic solvents

open access: yesScientific Reports, 2023
Extra-terrestrial mining and metal processing are vital for access to strategic metals for space exploration. This study demonstrates for the first time the catalytic dissolution of metals from meteorite proxies of metal-rich asteroids using a deep ...
Rodolfo Marin Rivera   +3 more
doaj   +1 more source

Mesoporous Silica Modified with 2-Phenylimidazo[1,2-a] pyridine-3-carbaldehyde as an Effective Adsorbent for Cu(II) from Aqueous Solutions: A Combined Experimental and Theoretical Study

open access: yesMolecules, 2022
In this study, we will present an efficient and selective adsorbent for the removal of Cu(II) ions from aqueous solutions. The silica-based adsorbent is functionalized by 2-phenylimidazo[1,2-a] pyridine-3-carbaldehyde (SiN-imd-py) and the ...
Rafik Saddik   +8 more
doaj   +1 more source

Temporal variation and risk assessment of heavy metals and nutrients from water and sediment in a stormwater pond, Brazil

open access: yesWater Supply, 2023
Urban watercourses are under pressure owing to the inflow of environmental pollutants from stormwater and effluent. The concentrations of heavy metals, ammoniacal nitrogen, total phosphorus (TP), and physicochemical parameters were monitored in a ...
Emanoelle Pereira da Silva   +3 more
doaj   +1 more source

Partial and Total Solvent-Free Limonene’s Hydrogenation: Metals, Supports, Pressure, and Water Effects

open access: yesJournal of Chemistry, 2020
Bio-based solvents menthene and menthane were obtained through limonene’s partial and total hydrogenation under various catalytic conditions. Heterogeneous catalysts based on different active metals and supports (carbon, alumina, and silica) were ...
Fanta J. Ndongou Moutombi   +4 more
doaj   +1 more source

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