Results 31 to 40 of about 293,237 (309)
Quality Assessment of Ground Water in Dhamar City, Yemen
International Journal of Environment, 2018 Chemical and statistical regression analysis on groundwater at five fields (17 sampling wells) located in Dhamar city, the central highlands of Yemen, was carried out.
Hefdallah Al Aizari +3 more
doaj +1 more source
Diosgenin: Chemistry, extraction, quantification and health benefits
Food Chemistry Advances, 2023 The occurrence of natural bioactive compounds is increasingly involved with pharmaceutical industries' exploring more source matrices. Diosgenin is a lot of delved bioactive compound naturally occurring in Trigonella foenum graecum, Dioscorea alata ...
Prajya Arya +2 more
doaj +1 more source
Solvent extraction: the coordination chemistry behind extractive metallurgy
Chem. Soc. Rev., 2014 The modes of action of the commercial solvent extractants used in extractive hydrometallurgy are classified according to whether the recovery process involves the transport of metal cations, M(n+), metalate anions, MXx(n-), or metal salts, MXx into a water-immiscible solvent.
Wilson, A Matthew +5 more
openaire +4 more sources
Three New Ent-Kaurane Diterpenes with Antibacterial Activity from Sigesbeckia orientalis
MoleculesThree novel ent-kaurane diterpenes, namely sigesbeckin A–C (1–3), in conjunction with eight previously identified analogues (4–11), were isolated from Sigesbeckia orientalis. Their chemical structures were resolved through multiple spectroscopic analyses.
Zhong-Shun Zhou +6 more
doaj +1 more source
Local Static Hold-up in a Rotary Sieved Disc Contactor for a Butyl Acetate-water System
International Journal of Technology, 2016 Considering the importance of liquid static holdup in liquid-liquid extraction columns, a novel experimental approach for predicting the mentioned parameter in a rotary sieved disc contactor has is presented in this research.
Fatemeh Behzad +4 more
doaj +1 more source
Analytica, 2022 Green(er) sample preparation technologies still dominate as the anticipated improvement in all analytical protocols. Separation scientists all over the world continuously strive to comply with the Green Analytical Chemistry (GAC) demands.
Victoria Samanidou, Abuzar Kabir
doaj +1 more source
Scientific ReportsIn the current work, luffa was modified with silver nanoparticles to prepare LF/AgNPs adsorbent for the elimination of ketoprofen and reactive yellow 15 (RY15) from aqueous media.
Soheil Tavassoli +5 more
doaj +1 more source
Paracetamol extraction tablets: a green technique for teaching of pharmaceutical chemistry
Revista Brasileira de Ensino de Ciência e Tecnologia, 2020 This work presents the evaluation of the chemical vegetable for the extraction of the active ingredient of paracetamol 500 mg tablets, with optimization of the process through the holistic metrics of Green Chemistry. The previous analysis, indicated as a
Juliana Aparecida Bolzan +2 more
doaj +1 more source
Education Sciences, 2022 This study shows how students can learn about green and sustainable chemistry by using the knowledge perspective of a local indigenous culture as a starting point.
Robby Zidny, Ingo Eilks
doaj +1 more source
Plasmodium falciparum gametogenesis essential protein 1 (GEP1) is a transmission‐blocking target
FEBS Letters, EarlyView.This study shows Plasmodium falciparum GEP1 is vital for activating sexual stages of malarial parasites even independently of a mosquito factor. Knockout parasites completely fail gamete formation even when a phosphodiesterase inhibitor is added. Two single‐nucleotide polymorphisms (V241L and S263P) are found in 12%–20% of field samples.
Frederik Huppertz +5 more
wiley +1 more source