Results 11 to 20 of about 2,444,726 (301)

Molecularly Imprinted Electrochemical Sensor-Based Fe2O3@MWCNTs for Ivabradine Drug Determination in Pharmaceutical Formulation, Serum, and Urine Samples

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Ivabradine hydrochloride (IVR) is a medically important drug because of its ability to lower the heart rate. Techniques reported for IVR determination were expensive, laborious, besides being of poor selectivity.
Fatehy M. Abdel-Haleem   +11 more
doaj   +1 more source

Learning Something From Nothing: The Critical Importance of Rethinking Microbial Non-detects

open access: yesFrontiers in Microbiology, 2018
Accurate estimation of microbial concentrations is necessary to inform many important environmental science and public health decisions and regulations.
Alex Ho Shing Chik   +4 more
doaj   +1 more source

Luminescent method for determination of nanoscale particles of rare earth elements with sulfosalicylic acid derivatives

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022
It was of interest to search for luminescent reactions to terbium in complexes with sulfosalicylic acid derivatives and to enhance them by studying the effect of third components (aminopolycarboxylic acids, organic bases and surfactants).
S.A. Elcheparova, A.A. Kokoevа
doaj   +1 more source

Review on the Analysis and Testing Method of Typical Plant Growth Regulators in Environment

open access: yesYankuang ceshi, 2023
Plant growth regulators (PGRs) are defined as naturally occurring or artificially synthesized compounds. The functions of PGRs mainly include accelerating or delaying seed germination, breaking plant dormancy, stimulating or reducing bud elongation ...
HU Xiaolei   +4 more
doaj   +1 more source

Ratiometric Sensor Based on PtOEP-C6/Poly (St-TFEMA) Film for Automatic Dissolved Oxygen Content Detection

open access: yesSensors, 2020
A ratiometric oxygen sensor based on a platinum octaethylporphyrin (PtOEP)–coumarin 6 (C6)/poly (styrene-trifluoroethyl methacrylate) (poly (St-TFEMA)) film was developed for automatic dissolved oxygen (DO) detection. The oxygen-sensing film according to
Honglin Zhang, Zhiguo Zhang
doaj   +1 more source

In-vitro Study for Cerenkov Luminescence Imaging Application in Hepatic Metastasectomy

open access: yesFrontiers in Physics, 2021
Cerenkov luminescence imaging (CLI) has been recently proposed as a method to visualize surgical margins in the operating theater, immediately after resection, to allow refining surgery in a single procedure. Our group is preparing a pilot clinical study
Esther Ciarrocchi   +10 more
doaj   +1 more source

A Solid Trap and Thermal Desorption System with Application to a Medical Electronic Nose

open access: yesSensors, 2008
In this paper, a solid trap/thermal desorption-based odorant gas condensation system has been designed and implemented for measuring low concentration odorant gas. The technique was successfully applied to a medical electronic nose system.
Xuntao Xu   +5 more
doaj   +1 more source

Influence of natural radium contamination of barium chloride on the determination of radium isotopes in the water samples using α/β liquid scintillation spectrometry

open access: yesNukleonika, 2016
The determination of radium isotopes in drinking water by liquid scintillation technique requires some reagents that are used for separating radium from water samples. One of the main reagents is BaCl2·H2O.
Nguyen Chau   +3 more
doaj   +1 more source

Quantum-optical communication rates through an amplifying random medium [PDF]

open access: yes, 2002
We study the competing effects of stimulated and spontaneous emission on the information capacity of an amplifying disordered waveguide. At the laser threshold the capacity reaches a "universal" limit, independent of the degree of disorder.
A. L. Moustakas   +23 more
core   +4 more sources

Compact hollow waveguide mid-infrared gas sensor for simultaneous measurements of ambient CO2 and water vapor [PDF]

open access: yes, 2020
A compact, sensitive and stable hollow waveguide (HWG) mid-infrared gas sensor, based on gas absorption lines using wavelength modulation spectroscopy with a second harmonic (WMS-2f) detection scheme, was developed for simultaneous measurements of ...
Chen, Weidong   +7 more
core   +3 more sources

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