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...

``Ugh, not again! Something's wrong with this printer\dots{}'' In inkjet printing the nozzles in printhead have intermittent idle periods, during which ink can evaporate from nozzle exit. Inks are usually multicomponent, and each component has its own characteristic evaporation rate, resulting concentration gradients within that alter jetting process. Through experiments, analytical modeling, n...