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Screening analysis of biodiesel feedstock using UV-vis, NIR and synchronous fluorescence spectrometries and the successive projections algorithm
(Elsevier Science, 2012-08)
This paper investigates the use of UV-vis, near infrared (NIR) and synchronous fluorescence (SF) spectrometries coupled with multivariate classification methods to discriminate biodiesel samples with respect to the base ...
Sensitive determination of terazosin by x-ray fluorescence spectrometry based on the formation of ion-pair associates with zinc thiocyanate
(John Wiley & Sons Ltd, 2007-07)
A new, simple and precise indirect method for the determination of terazosin through x-ray fluorescence (XRF) is proposed. The method is based on the precipitation of an ion-associate complex formed between terazosin and ...
An Improved Method for Obtaining Small Pressed Powder Pellets for the Analysis by XRF
(Polskie Towarzystwo Chemiczne-polish Chemical Soc, 2002-07)
A rapid, very low cost of instrumentation and simple approach to specimen preparation for the analysis by X-ray fluorescence spectrometry is presented. This technique requires a few mg of powdered samples, which are ...
Sulfur- and phosphorus-Kβ spectra analyses in sulfite, sulfate and phosphate compounds by X-ray fluorescence spectrometry
(Elsevier Science, 2003-09-26)
Several sulfite, sulfate and phosphate compounds were studied by X-ray fluorescence spectrometry. Sulfur- and phosphorus-Kβ spectral profile modified by the number of bonding hydrogen and oxygen atoms were analyzed. As it ...
Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry
(Elsevier Science, 2011-11)
In the present work, a new methodology for zinc preconcentration and separation and its determination by X-ray spectrometry is proposed. The methodology is based on the formation of a complex using Eriochrome black T ...
Slurry sampling in serum blood for mercury determination by CV-AFS
(Elsevier Science, 2009-01)
The heavy metal mercury (Hg) is a neurotoxin known to have a serious health impact even at relatively low concentrations. A slurry method was developed for the sensitive and precise determination of mercury in human serum ...
Immunotoxicological effects of arsenic bioaccumulation on spatial metallomics and cellular enzyme response in the spleen of male Wistar rats after oral intake
(Elsevier Ireland, 2017-01)
Arsenic (As) is a worldwide environmental contaminant, which compromises immunity and causes various associated disorders. To further investigate its immunotoxicity, male Wistar rats were exposed to 100 ppm of sodium ...
Occurrence, Distribution, and Ecological Risk of Fluoroquinolones in Rivers and Wastewaters
(Society of Environmental Toxicology and Chemistry, 2019-10)
The use of fluoroquinolones for the treatment of infections in humans and animals has increased in Argentina, and they can be found in large amounts in water bodies. The present study investigated the occurrence and ...
On line kinetic analysis of permeation profiles for UV filter loaded microemulsions using an automatic system with spectroscopic detection and a chemometric approach
(Royal Society of Chemistry, 2021-04-26)
The analysis of the permeation kinetics of new UV filter formulations is of great importance since the kinetic parameters are related to the effectiveness of the product over time. The dynamics of this process can be ...
Microfluidic fluorescence immunosensor using ZnONFs for invasive aspergillosis determination
(Elsevier Science, 2020-12-05)
Galactomannan (GM) is a polysaccharide cell-wall component released by Aspergillus species, used as a biological marker for invasive aspergillosis (IA) screening. A fluorescence microfluidic immunosensor for GM detection ...