Results 131 to 140 of about 536,774 (369)

State‐of‐the‐Art, Insights, and Perspectives for MOFs‐Nanocomposites and MOF‐Derived (Nano)Materials

open access: yesAdvanced Materials, EarlyView.
Different approaches to MOF‐NP composite formation, such as ship‐in‐a‐bottle, bottle‐around‐the‐ship and in situ one‐step synthesis, are used. Owing to synergistic effects, the advantageous features of the components of the composites are beneficially combined, and their individual drawbacks are mitigated.
Stefanos Mourdikoudis   +6 more
wiley   +1 more source

Evolution through time of Pyrrolizidine Alkaloids detection and quantification [PDF]

open access: yesarXiv, 2013
Pyrrolizidine Alkaloids (PAs) are a group of naturally occurring alkaloids that are produced by plants as a defense mechanism against insect herbivores. The analytical methodologies employed for their detection have come a long way since the first analytical experiment and in the last 30 years had an enormous development, both technological and ...
arxiv  

Partial Purification ofPolygalacturonase from Tomato Fruits Infected by Rhizopus arrhizus Fisher [PDF]

open access: yes, 2007
The production of polygalacturonase during the deterioration of tomato (Lycopersicon esculentum Mill.) by Rhizopus arrhizus Fisher was investigated. The enzyme was partially purified by a combination of ammonium sulphate precipitation, gel filtration ...
Adejuwon, A. O.   +2 more
core  

Short communication: separation and quantification of caseins and casein macropeptide using ion-exchange chromatography.

open access: yesJournal of Dairy Science, 2010
The aim of this work was to improve an existing method to separate and quantify the 4 major caseins from milk samples (i.e., containing whey proteins) using ion-exchange chromatography.
B. Holland   +3 more
semanticscholar   +1 more source

Ultrafast Laser Synthesis of Zeolites

open access: yesAdvanced Materials, EarlyView.
The study presents a novel ultrafast laser‐driven synthesis technique for zeolites directly in liquid. Laser pulses create a microscopic reactor that controls reaction kinetics at femto‐ and picosecond timescales. Nonlinear light‐matter interactions drive nucleation and growth, allowing the process to be paused at any stage of self‐assembly.
Sezin Galioglu   +11 more
wiley   +1 more source

Chromium (III) complexes and their relationship to the glucose tolerance factor : a thesis presented in partial fulfillment of the requirements for the degree of Master of Science in Chemistry at Massey University [PDF]

open access: yes, 1982
Two forms of the dinicotinate complex Cr(nic)2(H2O)3OH were formed which were yellow and blue, respectively. For the yellow form the nicotinic acid ligands were coordinated via the pyridine ring nitrogen atom but this complex was biologically inactive ...
Cooper, Juan Anton
core  

Determination of steroid estrogens in wastewater by high performance liquid chromatography-tandem mass spectrometry [PDF]

open access: yes, 2007
This paper discusses the requirement for, and presents an analytical procedure for, the determination of four unconjugated steroid hormones and a conjugated steroid (estrone-3-sulfate) in wastewaters.
A. Boobis   +53 more
core   +1 more source

Peptide Orientation Affects Selectivity in Ion-Exchange Chromatography

open access: yesAnalytical Chemistry, 2010
Here we demonstrate that separation of proteolytic peptides, having the same net charge and one basic residue, is affected by their specific orientation toward the stationary phase in ion-exchange chromatography.
A. Alpert   +7 more
semanticscholar   +1 more source

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