Results 71 to 80 of about 2,087,234 (343)

Identification of pentahydroxy bile alcohols in cerebrotendinous xanthomatosis: characterization of 5β-cholestane-3α, 7α, 12α, 24xi, 25-pentol and 5β-cholestane-3α, 7α, 12α, 23xi, 25-pentol

open access: yesJournal of Lipid Research, 1975
This paper describes studies dealing with the nature of the C27 pentahydroxy bile alcohols present in the bile and feces of two patients with cerebrotendinous xanthomatosis (CTX).
S. Shefer   +4 more
doaj   +1 more source

Degrees of freedom effect on fragmentation in tandem mass spectrometry of singly charged supramolecular aggregates of sodium sulfonates [PDF]

open access: yes, 2013
The characteristic collision energy (CCE) to obtain 50% fragmentation of positively and negatively single charged non-covalent clusters has been measured.
Bongiorno, David   +7 more
core   +2 more sources

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

open access: yesAdvanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du   +4 more
wiley   +1 more source

Determination of the freezing point in cow milk samples preserved with azidiol

open access: yesMljekarstvo, 2011
The study involved determination of the freezing point of cow milk by a reference (thermistor cryoscopy) and an instrumental (infrared spectrometry) method. The aim of the study was to evaluate the possibility of milk freezing point determination in milk
Nataša Pintić-Pukec   +4 more
doaj  

Influence of Accelerated Electron-Irradiation on Sorption Properties of Latvian Darkhead Sheep Wool Fibers

open access: yesMedžiagotyra
Latvian Darkhead (LD) is a local sheep breed and a genetic resource in Latvia. Preservation and development of the sheep population in the local region is important for the recultivation of fields, it serves as a source for export and local use, as well ...
Liga AVOTINA   +7 more
doaj   +1 more source

Identification of melamine in milk using mid-infrared spectrometry [PDF]

open access: yesBIO Web of Conferences
The paper presents a study of the infrared spectra of milk with melamine in the middle spectral range. The presence of absorption bands in the infrared spectra of a standard sample of melamine, milk without it and with its addition in different ...
Kalyuzhnaya T. V., Drozd A. V.
doaj   +1 more source

Gasoline analysis by headspace mass spectrometry and near infrared spectroscopy

open access: yes, 2015
Headspace mass spectrometry and near infrared spectroscopy in combination with chemometric tools, including hierarchical cluster analysis and linear discriminant analysis, have been used for the classification of gasoline according to the research octane
M. Ferreiro-González   +4 more
semanticscholar   +1 more source

A literature review of analytical techniques for materials characterisation of painted textiles - Part 2: spectroscopic and chromatographic analytical instrumentation [PDF]

open access: yes, 2017
Part Two of this Literature Review of analytical techniques for materials characterisation of painted textiles focusses on the application of vibrational and x-ray spectroscopic and chromatographic techniques used in the analysis of painted textiles to ...
Lennard, Frances   +2 more
core   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

open access: yesAdvanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer   +12 more
wiley   +1 more source

INFRARED SPECTROMETRY IN DIAGNOSTICS OF THE UTERINE CERVIX

open access: yesАкушерство, гинекология и репродукция, 2016
There was carried out the spectrometric examination of blood serum of women with benign and neoplas- tic diseases of uterine cervix; the diagnosis was histologically verified.
L. V. Borovkova   +4 more
doaj  

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