Interlaboratory comparability of copper complexation capacity determination in natural waters

2001 ◽  
Vol 4 (1) ◽  
pp. 116-120 ◽  
Author(s):  
Eleanor van Veen ◽  
Sean Comber ◽  
Michael Gardner
Keyword(s):  
Natural Waters ◽  
Complexation Capacity ◽  
Copper Complexation ◽  
Capacity Determination

Copper Toxicity to Larval Stages of Three Marine Invertebrates and Copper Complexation Capacity in San Diego Bay, California

2005 ◽  
Vol 39 (6) ◽  
pp. 1542-1546 ◽  
Author(s):  
Ignacio Rivera-Duarte ◽  
Gunther Rosen ◽  
David Lapota ◽  
David B. Chadwick ◽  
Lora Kear-Padilla ◽  
...  
Keyword(s):  
San Diego ◽  
Marine Invertebrates ◽  
Copper Toxicity ◽  
Complexation Capacity ◽  
Larval Stages ◽  
Copper Complexation ◽  
San Diego Bay

Determination of the aluminium complexing capacity of fulvic acids and natural waters, with examples from five New Zealand rivers

1996 ◽  
Vol 47 (1) ◽  
pp. 11 ◽  
Author(s):  
DJ Hawke ◽  
KJ Powell ◽  
JE Gregor
Keyword(s):  
Reaction Time ◽  
Natural Waters ◽  
Fulvic Acids ◽  
Operational Definition ◽  
Experimental Conditions ◽  
River Waters ◽  
Complexation Capacity ◽  
Complexing Capacity ◽  
Definition Of

An FIA technique with 7 s reaction time was used to analyse free plus labile Al in fulvic acid (FA) solutions and natural waters at pH 4.7, without the need for separation procedures. Titrations of these solutions using incremental pH or total Al were used to determine pH binding curves or estimates of the 'kinetic' Al complexation capacity (Al-CCk) respectively. The operational definition of Al-CCk relates to the capacity of a humic substance or natural water to bind Al through a 7-s FIA reaction time under defined experimental conditions of chromophore (CAS) concentration, ionic strength, and pH. Both Al binding strength and complexation capacity were greater than the corresponding Cu-CC (ISE) values. The Al-CCk measurements at pH 4.7 were 710 μmol Al g-1 v. 590 μmol Cu g-1. Al-CCk results (pH 4.7) were higher for soil FA (710 μmol g-1) than for aquatic FA (390 μmol g-1). Al-CCk results (pH 4.7) for five unfiltered river waters from different catchments gave results in the range 6.5-9.8 μmol Al L-1. The differences between total (natural) Al in the samples and Al-CCk were between 2.7 μM and 8.6 μM. Filtration experiments identified fractionation patterns between total (natural) Al and the fraction of Al-CCk not utilized. The Al titration of alginate, another component of natural organic matter, is reported.

A biological measurement of the copper complexation capacity of seawater1

1973 ◽  
Vol 18 (6) ◽  
pp. 993-997 ◽  
Author(s):  
EARL W. DAVEY PRAGER ◽  
MYRA J. MORGAN ◽  
STANTON J. ERICKSON
Keyword(s):  
Complexation Capacity ◽  
Copper Complexation ◽  
Biological Measurement

Copper complexation capacity of marine water samples from southern California

1980 ◽  
Vol 14 (12) ◽  
pp. 1482-1486 ◽  
Author(s):  
Richard F. Srna ◽  
Kenn S. Garrett ◽  
Sandra M. Miller ◽  
Alan B. Thum
Keyword(s):  
Water Samples ◽  
Southern California ◽  
Marine Water ◽  
Complexation Capacity ◽  
Copper Complexation
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