The study monitored the effect of differentiated mineral nutrition microgreens species by solution sodium selenate (2 mg Se/L) on content Se, chlorophylls, and other minerals. Chlorophylls were measured spectrophotometrically, Se electrothermal atomic absorption method (ETAAS) with Zeeman-effect background elements’ concentration was performed a dual Inductively coupled plasma emission spectros...

This method for determining aluminum in human serum involves electrothermal atomic absorption spectrophotometry. A longer drying time allows less pre-dilution of the sample, and the method also includes a flush cycle after atomization. Standard-addition methodology is used to eliminate matrix effects and the need for a standard curve. We used this method on serum from 50 normal persons and from...

A 5-amino-8-hydroxyquinoline (AHQ)-modified gold nanoparticle (GNP) layer was fabricated on an inner wall of a silica capillary column by alternatively passing a citrate-stabilized GNP solution and an AHQ solution in a repeating fashion. The observations by a field emission scanning electron microscope showed that the thickness of the resulting GNP layer was about 0.15 microm. This column was t...

A two-step procedure was devised for purification of alpha 2-macroglobulin (alpha 2 M) from human serum by high performance liquid chromatography (HPLC) on "Superose 6" gel-filtration medium and "Mono-Q" ion-exchange medium. The isolated protein reacts with specific alpha 2 M-anti-serum upon immunoelectrophoresis, migrates as single protein band on SDS-acrylamide gel electrophoresis, and yields...