Results 91 to 100 of about 1,458,589 (326)

Radioassay by gas-liquid chromatography of lipids labeled with carbon-14

open access: yesJournal of Lipid Research, 1962
A method for radioassay of carbon-I4 labeled substances analyzed by gas-liquid chromatography is described. The column effluent is automatically fractionated by condensing the vapor in a series of cartridges filled with anthracene crystals coated with ...
Arthur Karmen   +2 more
doaj   +1 more source

Separation and degradation detection of nanogram-per-litre concentrations of radiolabelled steroid hormones using combined liquid chromatography and flow scintillation analysis

open access: yesScientific Reports, 2020
Detection of micropollutants such as steroid hormones occurring in the aquatic environment at concentrations between ng/L and µg/L remains a major challenge, in particular when treatment efficiency is to be evaluated.
Roman Lyubimenko   +3 more
doaj   +1 more source

Comparison of the Coating Structure of Silicon‐Based PECVD Coatings With Varying Organic Content

open access: yesPlasma Processes and Polymers, EarlyView.
Silicon‐based PECVD coatings transition abruptly from organic SiOCH to oxidic SiOx at ~32 at% silicon, exhibiting threshold behavior in barrier performance. Chemical composition seems to dominate over porosity: SiOx coatings unexpectedly show higher porosity yet superior barrier properties, possibly due to rigid cage‐like molecular structures ...
Jonas Franke   +7 more
wiley   +1 more source

Azole antifungal contaminants disrupt mycorrhizal function and risk agricultural sustainability

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Global food production is increasingly threatened by soil degradation, climate change and the rising costs of synthetic fertilisers. Circular agriculture, which promotes resource reuse, is a promising solution, but using treated wastewater and biosolids in farming introduces risks from emerging contaminants like pharmaceutical residues.
Emily K. Durant   +5 more
wiley   +1 more source

Primary standardization of <sup>212</sup>Pb activity by liquid scintillation counting. [PDF]

open access: yesAppl Radiat Isot, 2022
Bergeron DE   +5 more
europepmc   +1 more source

High‐Brightness Delayed Imaging Realized by Embedding Zinc Gallate Nanocrystals Into Glass

open access: yesRare Metals, EarlyView.
ABSTRACT X‐ray delayed imaging technology leverages an “irradiation‐storage‐thermally stimulated readout” mode, demonstrating unique advantages in intermittent monitoring scenarios such as high‐temperature/high‐radiation environments. This typically requires materials combining abundant carrier‐trapping energy levels with structural thermostability ...
Jun‐Xiao Wu   +6 more
wiley   +1 more source

Use of a filter-paper disk assay in the measurement of lipid biosynthesis

open access: yesJournal of Lipid Research, 1966
The precipitation by trichloroacetic acid (TCA) of radioactive lipids on disks of filter-paper, followed by extraction with TCA and water to remove soluble radioactive precursors, provides the means for a convenient assay for lipid biosynthesis.
Howard Goldfine
doaj   +1 more source

Exploration of Copper Halide Linear‐Array Detector Prototype for Security Checks

open access: yesSmall, EarlyView.
Mn‐doped Cs3Cu2I5 is demonstrated as a highly promising scintillator for X‐ray imaging, featuring high light yield, a low detection limit, and negligible afterglow. A linear‐array detector prototype based on the Mn‐doped Cs3Cu2I5 delivers a spatial resolution of 1.1 lp/mm in food‐safety and security inspections, marking a significant advance in the ...
Yang Zhou   +7 more
wiley   +1 more source

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