Results 21 to 30 of about 192,249 (245)
Alcalóides de Aspidosperma auriculatum Standl [PDF]
, 2003 Species from genus Aspidosperma show the presence of indol alkaloids. From Aspidosperma quebracho-blanco Schlecht quebracacidine was obtained1, from A. olivaceum. Schmutz and Hunziker2 isolated olivacine, among others substances.
BARBOSA, Wagner Luiz Ramos +2 more
core +1 more source
Jurnal Rekayasa Kimia & Lingkungan, 2009 Cu/Silica gel catalyst preparation by using silica content which is obtained from Sabang natural crystobalit has been done. Isolated silica from crystobalit is reacted with natrium hidroxide to produce silicate natrium that reacted further with sulphate ...
Surya Lubis
doaj +2 more sources
Current Issues in Pharmacy and Medical Sciences, 2022 Investigations into separation selectivity of High-Performance Thin-layer chromatography (HPTLC) of dansyl (DNS) derivatives of amino acids in silica gel (Silica gel 60 F254s plates) and silanized silica gel (RP-18 W plates) systems are presented.
Chomicki Adam, Dzido Tadeusz H.
doaj +1 more source
Synthesis and Characterization of Modified Silica Gel from Teff Straw Ash Using Sol-gel Method
Next MaterialsTeff straw ash was first converted into sodium silicate solution, then processed via sol-gel, producing low-density silica aerogel (modified silica gel). A one-step modification method was applied to produce modified silica gel from teff straw ash.
Belete Tessema +3 more
doaj +1 more source
PEMANFAATAN LIMBAH SEKAM PADI MENJADI SILIKA GEL
Jurnal Bahan Alam Terbarukan, 2014 Sekam padi merupakan salah satu sumber penghasil silika terbesar, berpotensi sebagai bahan pembuatan silika gel. Abu sekam padi mengandung silika sebanyak 87%-97% berat kering.
Prima Astuti Handayani +2 more
doaj +1 more source
Silica Gel From Bagasse Ash for Methylene Blue Adsorption
Sains NaturalMost silica sources are from non-renewable natural sand or rock materials, which affect the element's diminishing availability in the environment. Because bagasse ash has a relatively high silica concentration, it can be used as a silica source to ...
Raisa Anisara +2 more
doaj +1 more source
Kinetics Study of Gas Pollutant Adsorption and Thermal Desorption on Silica Gel
Applied Sciences, 2017 Silica gel is a typical porous desiccant material. Its adsorption performance for gaseous air pollutants was investigated to determine its potential contribution to reducing such pollutants.
Rong A +5 more
doaj +1 more source
FEBS Open Bio, EarlyView.CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point +7 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti +5 more
wiley +1 more source
Pengaruh Keasaman Medium dan Imobilisasi Gugus Organik pada Karakter Silika Gel dari Abu Sekam Padi
Jurnal Kimia Sains dan Aplikasi, 2005 Silica gel is well known as a material that may be used as adsorbent, host matrix for catalyst, etc. Hence, synthesis of silica gel from rice hull ash has been done by evaluation of the effect of medium acidity and organic group immobilized in the ...
Sriyanti Sriyanti +3 more
doaj +1 more source