Search
Search Results
-
Optimization of a pre-concentration method for the analysis of mercury isotopes in low-concentration foliar samples
Hg isotope analysis in samples from background regions is constrained by the presence of low Hg concentration and therefore requires a...
-
Stereochemistry of Organic Alicyclic Compounds Containing Carbon–Carbon Double Bonds (Alkenes and Cycloalkenes)
The simplest compound containing a carbon–carbon double bond is ethylene. Such compounds are called alkenes. In ethylene, a sigma bond between two... -
Nitrogen-13, oxygen-15 and carbon-11 in positron emission tomography: an overview
This review article discusses the most significant aspects related to the conventional positron emitting radionuclides such as nitrogen-13,...
-
-
Use of hydrochemistry, environmental isotopes and radon distribution for assessment of groundwater in the Cenomanian–Turonian aquifer system: a case study from the Barada River valley, Syria
Combined techniques of hydrochemistry and environmental isotopes were used to characterize the groundwater of the Barada River valley, Syria. A clear...
-
Position-specific carbon stable isotope analysis of glyphosate: isotope fingerprinting of molecules within a mixture
Glyphosate [N-(phosphonomethyl) glycine] is a widely used herbicide and a molecule of interest in the environmental sciences, due to its global use...
-
Sorption of Protactinium, Thorium, and Other Actinides from the LiF–NaF–KF Melt by Activated Carbon
AbstractThe sorption of uranium and thorium fluorides by activated carbon from the eutectic was studied. The sorption isotherms of both fluorides at...
-
Stereochemistry of Organic Compounds Containing Asymmetric Carbon
Carbon is tetravalent, that is it can form four bonds, as in the case of methane. In case, a carbon atom is attached to four different groups or... -
Activated carbon treated with different chemical agents for pertechnetate adsorption
The study investigated the adsorption behaviour of different activated carbon samples for pertechnetate under diverse conditions. Characterizations...
-
Characterization of vanillin carbon isotope delta reference materials
Stable carbon isotope ratio measurements are used to investigate the provenance of vanillin. In this study, a variety of commercial vanillin samples...
-
Ratios of Stable Isotopes 13С/12С and 15N/14N in Samples of Dead Honey Bees and Beekee** Products
AbstractThe isotopic composition of carbon (δ 13 С) and nitrogen (δ 15 N) in samples of dead honey bees and beekee** products (honey, pollen load,...
-
Radioanalytical methods for sequential analysis of actinide isotopes in activated carbon filter-bed waste
In this work, we compare methods for the sequential determination of U and the transuranium elements Np, Pu, Am, and Cm. The chemical yield, the time...
-
Stable isotope ratios of nitrogen and carbon as biomarkers of a vegan diet
PurposeDietary biomarkers can potentially overcome the limitations of self-reported dietary data. While in ecology and archaeology, stable isotope...
-
Analysis of δ13C and δ15N values in Croatian honey by EA–IRMS and possibility of their application in botanical origin verification
The aim of this work was to give characteristic stable carbon and nitrogen isotope ratio ( δ 13 C honey , δ 13 C protein and δ 15 N) ranges and examine their...
-
Microwave-assisted one-step synthesis of water-soluble manganese-carbon nanodot clusters
Using metal coordination to assemble carbon nanodots (CND) into clusters can enhance their photophysical properties for applications in sensing and...
-
On mixed metric dimension of crystal cubic carbon structure
AbstractChemical graph theory is a branch of mathematical chemistry which applies classic graph theory to chemical phenomena and entities. Graphs are...
-
Water Distillation as a Method for Separation of Hydrogen and Oxygen Isotopes: State of the Art and Prospects
AbstractVacuum distillation of water is one of the most environmentally friendly and safe methods for separating the hydrogen and oxygen isotopes. A...
-
Recent Trends in Nobel Metals and Carbon Dots in the Costume of Hybrid Nano Architecture
In recent years, hybrid architectures have been extensively developed in the fields of environment and energy to overcome the disadvantages of...
-
Utilization of Organic Substrates for Remediation of TENORM Waste Generated from Some Strategic Industries
The reduction of the enhanced naturally occurring radioactivity in the TENORM residues associated with some strategic industries has become an...
-
Surface modification of petroleum residue-activated carbon using citric acid for enhanced cobalt removal from an aqueous solution
Although the amount of petroleum residues produced from oil refinery processes has increased, there has been limited research for the residues. In...