Radioisotopic X-ray fluorescence spectrometry (RXRFS) performed with an analyzer based on a 241Am excitation source was investigated as a potential field method for screening housewares for the presence of toxic elements. A compact system based on commercially available detection and multichannel analyzer components was used to measure surface concentrations of Au, Ba, Bi, Cd, Ce, Co, Cs, Cu, F...

This review summarises developments published in the period from mid-2021 to mid-2022 on analysis of a variety matrices for mycotoxins. Important all aspects mycotoxin analysis, sampling and quality assurance/quality control analytical results, various detection quantitation technologies ranging single biosensors comprehensive instrumental methods are presented discussed. non-exhaustive summary...

Chronic exposure to lead remains a health concern in many urban areas; Sacramento, California is one example, with state surveillance data showing nearly 3% of screened children reported with blood lead levels over 4.5 μg/dL in 2009. To investigate the environmental exposure, 91 soil samples were collected and analyzed by ICP-AES and ICP-MS for 14 elements. An additional 28 samples were collect...

Objective(s) Some properties of neuraminidase produced by Pseudomonas aeruginosa PAO1 growth in a defined medium (BHI) were examined and evaluated for its features. Materials and Methods The obtained supernatant enzyme of P. aeruginosa PAO1 cultures was used in a sensitive fluorometric assay by using 2'-(4-methylumbelliferyl) a-D-N acetylneuraminic acid as substrate. As hydrolyzing MUN with ...

Energy-dispersive x-ray fluorescence is applied in the analysis of human serum to determine the concentrations of several elements simultaneously with minimal manipulation of the sample. The analytical procedure has been developed with standard sera, and standardization, detection limits, and reproducibility have been established. A 50-microL sample of diluted serum, to which an internal standa...

Folium and orchil are dyes of vegetal origin. Folium is obtained from Chrozophora tinctoria (L.) A. Juss., whereas orchil is obtained from Roccella and other genera of lichens. These dyes were used in the past to impart purple hue to paintings and textiles as substitutes for the more prised Tyrian purple dye, obtained from shellfish. Despite several citations in ancient technical treatises dati...

Determination of the content chemical elements occurring in waste large, small and trace amounts was performed using two instrumental analysis techniques: ICP-OES—Inductively Coupled Plasma Optical Emission Spectrometry WDXRF—Wavelength Dispersive X-ray Fluorescence Spectrometry. Since such analyses are expensive time-consuming, objective work presented this paper development a quick inexpensiv...

Nowadays, the sorption-oriented approach is on agenda in remediation practices of lands contaminated with heavy metals. The current growing quantity research accounts for different sorbents. However, there still a lack studies utilizing economic criteria. Therefore, to ensure wide application opportunities, one necessary requirements their efficiency use. By these criteria, this manuscript rese...