Results 1 to 10 of about 2,335,428 (261)
Solid-phase excitation-emission matrix spectroscopy for chemical analysis of combustion aerosols.
PLoS ONE, 2021 Exposure to ultrafine combustion aerosols such as particulate matter (PM) from residential woodburning, forest fires, cigarette smoke, and traffic emission have been linked to adverse health outcomes.
Gaurav Mahamuni +7 more
doaj +6 more sources
Metrologia, 2016 The combination of isotope dilution and mass spectrometry has become an ubiquitous tool of chemical analysis. Often perceived as one of the most accurate methods of chemical analysis, it is not without shortcomings. Current isotope dilution equations are not capable of fully addressing one of the key problems encountered in chemical analysis: the ...
Pagliano, Enea, Meija, Juris
semanticscholar +6 more sources
MethodsX, 2020 As an innovative analytical approach ordinal analysis is applied to positive matrix factorization (PMF) analysis outputs to identify the most important species and factors in chemical ionization mass spectrometry (CIMS) data. The procedure and outcome of
Xiangrui Kong, Jan B.C. Pettersson
doaj +5 more sources
Excitation-Emission Matrix Spectroscopy for Analysis of Chemical Composition of Combustion Generated Particulate Matter [PDF]
Environmental Science & Technology, 2019 Analysis of particulate matter (PM) is critical for the assessment of human exposures to potentially harmful agents, notably combustion-generated PM; specifically polycyclic aromatic hydrocarbons (PAHs) found in them and associated with carcinogenic and mutagenic effects.
Gaurav Mahamuni +7 more
+9 more sources
Methods for the analysis of endocrine disrupting chemicals in selected environmental matrixes
Environmental Research, 2022 Endocrine disrupting chemicals (EDCs) are heterogenous in structure, chemical and physical properties, and their capacity to partition into various environmental matrixes. In many cases, these chemicals can disrupt the endocrine systems of vertebrate and invertebrate organisms when present at very low concentrations.
C.D. Metcalfe +5 more
openaire +3 more sources
New Physico-Chemical Analysis of Magnesium-Doped Hydroxyapatite in Dextran Matrix Nanocomposites [PDF]
Polymers, 2023 The new magnesium-doped hydroxyapatite in dextran matrix (10MgHApD) nanocomposites were synthesized using coprecipitation technique. A spherical morphology was observed by scanning electron microscopy (SEM). The X-ray diffraction (XRD) characterization results show hydroxyapatite hexagonal phase formation.
Daniela Predoi +7 more
openaire +3 more sources
IQA analysis of the two-particle density matrix: chemical insight and computational efficiency [PDF]
Theoretical Chemistry Accounts, 2023 AbstractThe interacting quantum atoms (IQA) method offers a rigorous and minimal route to calculate atomic electron correlation energies from the two-particle density matrix (2PDM). The price paid is that this method is very time-consuming. However, employing CCSD and CCSD(T), we explore several approaches to speed up such calculations.
Vincent, Mark, Popelier, Paul
openaire +3 more sources
Frontiers in Public Health, 2021 Background: An untargeted chemical analysis of bio-fluids provides semi-quantitative data for thousands of chemicals for expanding our understanding about relationships among metabolic pathways, diseases, phenotypes and exposures.
Dinesh Kumar Barupal +3 more
doaj +2 more sources
Tooth matrix analysis for biomonitoring of organic chemical exposure: Current status, challenges, and opportunities [PDF]
Environmental Research, 2015 Epidemiological evidence supports associations between prenatal exposure to environmental organic chemicals and childhood health impairments. Unlike the common choice of biological matrices such as urine and blood that can be limited by short half-lives for some chemicals, teeth provide a stable repository for chemicals with half-life in the order of ...
Syam S. Andra +3 more
openaire +4 more sources
RSC Advances, 2019 A dual emissive Ir(iii)/Eu(iii) dyad in a paper-based luminescence assay for liquid chemical warfare agents demonstrated clear visual responses.
Genevieve H. Dennison +5 more
openaire +5 more sources