Determination of lead in microliter amounts of whole blood by stripping potentiometry
โ Scribed by Daniel Jagner; Lars Renman; Yudong Wang
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 649 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1040-0397
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The problem with toxic metal ion determination in blood is the adsorption of organic compounds on the electrode surface and the formation of complexes between metal ions and organic constituents of blood. This is the reason why usually preliminary acid digestion or other sample pretreatment is used.
The total tin concentration in five different kinds of canned fruit juices has been determined by using constant current stripping analysis on a gold film electrode, and potentiometric stripping analysis on a mercury film electrode, the concentration in the samples ranging between 40 and XOmg I--'.
A lo-p1 gasohne sample IS added to 590 ~1 of a modlfymg matnx composed of 15 g I-' mercury(H), 0 50 M nitric acid and 1% (v/v) Trlton X-100 m 90% ethanol Tetraethyl-and/or tetramethyllead (TEL and TML, respectively) are reduced and simultaneously amalgamated on a glassy carbon electrode employmg a p