Spectrophotometric determination of copper with triethenetetramine in electroless plating baths

Determination of the Cation-Exchange Capacity of Muscovite Mica

“…Recently, Meier and Kahr (27) reported the use of copper triethylenetetramine instead of copper ethylenediamine for the determination of the CEC of clays and measured the decrease in its solution concentration photometrically at λ = 620 nm. The photometric analysis of copper in aqueous solutions using triethylenetetramine as a complexing agent has been previously reported (28,29).…”

The Preparation and Properties of Vapor-Deposited Epitaxial InAs[sub 1−x]P[sub x] Using Arsine and Phosphine

“…This result is in general agreement with those of Folberth (2), and Koster and Ulrich (7). The compositions were determined by chemical analysis (8) with an accuracy of _+ 0.5%.…”

“…Zinc is a fairly shallow acceptor in GaP and has been reported at 0.03 ev (7) and, more recently, at about 0.06 ev (8,9) above the valence band.…”