Recent advances in the preconcentration and determination of platinum group metals in environmental and biological samples

Recent advances in the preconcentration and determination of platinum group metals in environmental and biological samples

WoS Article

Platinum metals enter the environment primarily through the worldwide use of autocatalysts. The metals are released from the catalyst in the form of microparticles and nanoparticles, in elemental form, optionally in the form of surface-oxidized particles. Also important is the use of biologically active compounds of platinum group metals in oncological therapy, when they become the part of wastewaters. They move in all environmental compartments and are also subject to long-distance transport. However, they are still found in very low concentrations in the environment. Their direct determination is often difficult, using only highly sensitive analytical techniques. To use more common and more affordable techniques, a preconcentration step is necessary to increase their concentration to a measurable value. An overview of the application of preconcentration techniques and an overview of the current occurrence of platinum metals in individual matrices is presented.

Platinum metals enter the environment primarily through the worldwide use of autocatalysts. The metals are released from the catalyst in the form of microparticles and nanoparticles, in elemental form, optionally in the form of surface-oxidized particles. Also important is the use of biologically active compounds of platinum group metals in oncological therapy, when they become the part of wastewaters. They move in all environmental compartments and are also subject to long-distance transport. However, they are still found in very low concentrations in the environment. Their direct determination is often difficult, using only highly sensitive analytical techniques. To use more common and more affordable techniques, a preconcentration step is necessary to increase their concentration to a measurable value. An overview of the application of preconcentration techniques and an overview of the current occurrence of platinum metals in individual matrices is presented.

platinum; palladium; rhodium; preconcentration; environmental samples; biological samples; autocatalyst

platinum; palladium; rhodium; preconcentration; environmental samples; biological samples; autocatalyst

KOMENDOVÁ, R.

2021

01.01.2020

Elsevier

Spojené království Velké Británie a Severního Irska

0165-9936

TRAC-TRENDS IN ANALYTICAL CHEMISTRY

122

United Kingdom of Great Britain and Northern Ireland

1

12

12

https://www.sciencedirect.com/science/article/pii/S0165993619304741?dgcid=author

http://hdl.handle.net/11012/200864

S0165993619304741-accepted