Results 71 to 80 of about 5,392 (242)

Titrimetric and Spectrophotometric Assay of Oxcarbazepine in Pharmaceuticals Using N-Bromosuccinimide and Bromopyrogallol Red

open access: yesInternational Journal of Analytical Chemistry, 2011
Titrimetric and spectrophotometric methods are described for the determination of oxcarbazepine (OXC) in bulk drug and in tablets. The methods use N-bromosuccinimide (NBS) and bromopyrogallol red (BPR) as reagents. In titrimetry (method A), an acidified
Nagaraju Rajendraprasad   +2 more
doaj   +1 more source

THE EFFECT OF POSITIONAL ISOMERISM OF PROPANEDIOL ON THE FORMATION OF COBALT OXIDES

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2017
This paper focuses on a comparative analysis between the carboxylate precursors obtained through the redox reaction between cobalt nitrate and 1,2-propanediol, and cobalt nitrate with 1,3-propanediol, respectively.
Thomas DIPPONG   +2 more
doaj   +1 more source

Evaluation of available analytical techniques for monitoring the quality of space station potable water [PDF]

open access: yes
To assure the quality of potable water (PW) on the Space Station (SS) a number of chemical and physical tests must be conducted routinely. After reviewing the requirements for potable water, both direct and indirect analytical methods are evaluated that ...
Geer, Richard D.
core   +1 more source

Biodiesel production from olive-pomace oil of steam-treated alperujo [PDF]

open access: yes, 2014
Recently interest has been revived in the use of plant-derived waste oils as renewable replacements for fossil diesel fuel. Olive–pomace oil (OPO) extracted from alperujo (by-product of processed olives for olive oil extraction), and produced it in ...
Durán-Barrantes, María de la Montaña   +4 more
core  

Optimization of Aspergillus niger lipase production by solid state fermentation of agro-industrial waste

open access: yesEnergy Reports, 2020
Lipase is one of the most used industrial enzymes, which can be produced by Aspergillus niger. Large scale production of Aspergillus niger lipase is more profitable by using solid state fermentation method and utilizing agro-industrial waste as the ...
Dwini Normayulisa Putri   +4 more
doaj   +1 more source

Ground and Intermediate Water Equilibrium with Water-Bearing Rock Minerals (Moldova) under Anthropogenic Impact [PDF]

open access: yes, 2016
The calculation results of ground water equilibrium with the major water-bearing rock minerals (Moldova) are presented under the condition of anthropogenic impact. As a calculation model the HydroGeo software is used.
Butoshina, V. A.   +4 more
core   +1 more source

Lactose determination in relation to contemporary methodologies

open access: yesRevista do Instituto de Latícinios Cândido Tostes, 2020
Lactose is the most abundant sugar of milk and dairy products, and with the progress of studies, it is known that this saccharide is badly digested by a portion of the population, which has the consumption of reduced or lactose-free products as an option
Karina Coelho Moreira da Silva   +5 more
doaj   +1 more source

Fatty-acid composition of Macrobrachium vollenhovenii in Ogun estuary, Nigeria [PDF]

open access: yes, 2012
A study was carried out on the fatty-acid composition of Macrobrachium vollenhovenii (African river prawn) in Ogun estuary, Ogun State, Nigeria. Sexes and size groups were considered during the study.
Abdul, W.O.   +5 more
core  

Sensitive and selective methods for the determination of rizatriptan benzoate in pharmaceuticals using N-bromosuccinimide and two dyes

open access: yesJournal of Saudi Chemical Society, 2015
One titrimetric and two spectrophotometric methods are described for the determination of rizatriptan benzoate (RTB) in bulk drugs and in tablets. The methods use N-bromosuccinimide (NBS) as an analytical reagent, janus green (JG) and calmagite (CMG) as ...
Kudige Nagaraj Prashanth   +1 more
doaj   +1 more source

The Certification of the Mass Fractions of Proximates and Essential Elements in Lyophilised Pork Muscle (ERM®-BB384) [PDF]

open access: yes, 2009
This report describes the preparation of the lyophilised pork musscle matrix reference material ERM-BB384 and the certification of the contents (mass fractions) of three proximates and four essential elements.
BERNREUTHER Alexander   +8 more
core   +1 more source

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