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To meet new regulations, alternative plasticizers to di(2-ethylhexyl) phthalate (DEHP) are now commonly used in the manufacturing of medical devices. These are: acetyl tri-n-butyl citrate (ATBC), bis (2-ethylhexyl)adipate (DEHA), dioctyl terephtalate (DEHT), di-isononylphtalate (DINP), diisononylcyclohexane-1.2-dicarboxylate (DINCH) and trioctyltrimellilate (TOTM). An HPLC-UV analysis was previously...
The biological importance of aminothiols is well recognized with the concentration of these compounds within biological fluids such as plasma and urine functioning as valuable biomarkers in a number of clinical circumstances and a wide variety of diseases. Herein, for the first time, chromatographic coupled chemiluminescent assay was used for simultaneous determination of aminothiols in human urine...
A high-performance liquid chromatography method using an alternative pentafluorophenyl (PFP) core-shell stationary phase has been developed and used for rapid separation of 23 anthocyanins in a highbush blueberry Bluehaven cultivar. A high efficiency of separation of anthocyanins was achieved in the core-shell column Kinetex PFP, 150×4.6mm (particle size 2.6µm) with a 5×4.6mm precolumn, using a simple...
In proteomics research, the screening and monitoring of disease biomarkers is still a major challenge, mainly due to their low concentration in biological samples. However, the universal enrichment of intact proteins has not been further studied. In this work, we developed a Fe3O4-chitosan@graphene (Fe3O4-CS@G) core-shell composite to enrich low-abundance proteins from biological samples. Fe3O4-CS@G...
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