Determination of phosphorus in gold or silver brazing alloys

Wettability of Brazing Filler Metals on Copper and Copper Alloys

The possibility of alloying can not be avoided at the interface between molten brazing filler metal and base metal in brazing, so the wettability of brazing filler metal can not be easily explained theoretically. We used the original apparatus for wettability test and investigated the relation between the wettability of brazing filler metals of Ag-P-Cu and Ag-Cu-Zn-Cd systems on copper and the ...

Soldering and brazing of copper and copper alloys

development of different optical methods for determination of glucose using cadmium telluride quantum dots and silver nanoparticles

a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...

Spectrophotometric Determination of Phosphorus in Iron Alloys Employing a Flow Injection System

Um sistema de análises por injeção em fluxo é proposto para a determinação espectrofotométrica de fósforo em ferro eletrolítico e ferro ligas. O método se baseia na reação com molibdato de amônio após redução com cloreto estanoso em meio ácido. Uma coluna com resina catiônica AG50W-X8A foi acoplada ao sistema para minimizar a interferência causada por Fe(III) e Cr(III). O sistema proposto apres...

Cubic Architectures on the Nanoscale: the Sensing and Catalytic Properties of Silver and Gold Dimers and Platinum-silver Alloys