Now showing items 1-4 of 4
Trace metal analysis of natural waters by ICP-MS with on-line preconcentration and ultrasonic nebulization
(, 1999 Feb)
Concentrations of Mn, Ni, Cu, Zn and Pb in natural waters were measured by inductively coupled plasma mass spectrometry (ICP-RIS) with on-line preconcentration using Toyopearl TSK-immobilized 8-hydroxyquinoline resin columns ...
Interactions between radioactively labeled colloids and natural particles: Evidence for colloidal pumping
(, 1997 Jul)
It has been hypothesized that colloidal forms of trace metals can be reactive intermediaries in the scavenging processes leading to the removal of their particulate forms. A series of radiotracer experiments using natural ...
An ultraclean cross-flow ultrafiltration technique for the study of trace metal phase speciation in seawater
(, 1996 Nov)
A series of laboratory and field studies were conducted to test suitability and optimal sampling conditions of an Amicon ultrafiltration system for the collection of colloidal material for trace metal phase speciation ...
Colloidal pumping: Evidence for the coagulation process using natural colloids tagged with Hg-203
(, 1996 Nov)
Colloids isolated from waters of the Trinity River (Texas) were tagged with high specific activity mercury (Hg-203) and re-equilibrated with ultrafiltered water and particles. The transfer of radioisotopic Hg from the ...