Electrochemical Microsensors for the Detection of Cadmium(II)
and Lead(II) Ions in Plants

J 2010

Electrochemical Microsensors for the Detection of Cadmium(II) and Lead(II) Ions in Plants

KRYŠTOFOVÁ, Olga, Libuše TRNKOVÁ, Vojtěch ADAM, Josef ZEHNÁLEK, Jaromír HUBÁLEK et. al.

Basic information

Original name

Electrochemical Microsensors for the Detection of Cadmium(II) and Lead(II) Ions in Plants

Authors

KRYŠTOFOVÁ, Olga (203 Czech Republic), Libuše TRNKOVÁ (203 Czech Republic, belonging to the institution), Vojtěch ADAM (203 Czech Republic), Josef ZEHNÁLEK (203 Czech Republic), Jaromír HUBÁLEK (203 Czech Republic), Petr BABULA (203 Czech Republic) and René KIZEK (203 Czech Republic, guarantor)

Edition

Sensors, 2010, 1424-8220

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10405 Electrochemistry

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.774

RIV identification code

RIV/00216224:14310/10:00051499

Organization unit

Faculty of Science

UT WoS

000279202100002

Keywords in English

heavy metals; lead; cadmium; miniaturization; screen printed electrode; amperometry; voltammetry; plant; maize; sunflower; water

Abstract

V originále

Routine determination of trace metals in complex media is still a difficult task for many analytical instruments. The aim of this work was to compare three electro-chemical instruments [a standard potentiostat (Autolab), a commercially available miniaturized potentiostat (PalmSens) and a homemade micropotentiostat] for easy to use and sensitive determination of cadmium(II) and lead(II) ions. The lowest detection limits (hundreds of pM) for both metals was achieved by using of the standard potentiostat, followed by the miniaturized potentiostat (tens of nM) and the homemade instrument (hundreds of nM). Nevertheless, all potentiostats were sensitive enough to evaluate contamination of the environment, because the environmental limits for both metals are higher than detection limits of the instruments. Further, we tested all used potentiostats and working electrodes on analysis of environmental samples (rainwater, flour and plant extract) with artificially added cadmium(II) and lead(II). Based on the similar results obtained for all potentiostats we choose a homemade instrument with a carbon tip working electrode for our subsequent environmental experiments, in which we analyzed maize and sunflower seedlings and rainwater obtained from various sites in the Czech Republic.

Links

MSM0021622412, plan (intention)

Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)

Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)

Citovat

KRYŠTOFOVÁ, Olga, Libuše TRNKOVÁ, Vojtěch ADAM, Josef ZEHNÁLEK, Jaromír HUBÁLEK, Petr BABULA and René KIZEK. Electrochemical Microsensors for the Detection of Cadmium(II) and Lead(II) Ions in Plants. Sensors. 2010, vol. 10, No 6, p. 5308-5328. ISSN 1424-8220.

@article{905596,
   author = {Kryštofová, Olga and Trnková, Libuše and Adam, Vojtěch and Zehnálek, Josef and Hubálek, Jaromír and Babula, Petr and Kizek, René},
   article_number = {6},
   keywords = {heavy metals; lead; cadmium; miniaturization; screen printed electrode; amperometry; voltammetry; plant; maize; sunflower; water},
   language = {eng},
   issn = {1424-8220},
   journal = {Sensors},
   title = {Electrochemical Microsensors for the Detection of Cadmium(II) and Lead(II) Ions in Plants},
   volume = {10},
   year = {2010}
}

TY  - JOUR
ID  - 905596
AU  - Kryštofová, Olga - Trnková, Libuše - Adam, Vojtěch - Zehnálek, Josef - Hubálek, Jaromír - Babula, Petr - Kizek, René
PY  - 2010
TI  - Electrochemical Microsensors for the Detection of Cadmium(II) and Lead(II) Ions in Plants
JF  - Sensors
VL  - 10
IS  - 6
SP  - 5308-5328
EP  - 5308-5328
SN  - 14248220
KW  - heavy metals
KW  - lead
KW  - cadmium
KW  - miniaturization
KW  - screen printed electrode
KW  - amperometry
KW  - voltammetry
KW  - plant
KW  - maize
KW  - sunflower
KW  - water
N2  - Routine determination of trace metals in complex media is still a difficult task for many analytical instruments. The aim of this work was to compare three electro-chemical instruments [a standard potentiostat (Autolab), a commercially available miniaturized potentiostat (PalmSens) and a homemade micropotentiostat] for easy to use and sensitive determination of cadmium(II) and lead(II) ions. The lowest detection limits (hundreds of pM) for both metals was achieved by using of the standard potentiostat, followed by the miniaturized potentiostat (tens of nM) and the homemade instrument (hundreds of nM). Nevertheless, all potentiostats were sensitive enough to evaluate contamination of the environment, because the environmental limits for both metals are higher than detection limits of the instruments. Further, we tested all used potentiostats and working electrodes on analysis of environmental samples (rainwater, flour and plant extract) with artificially added cadmium(II) and lead(II). Based on the similar results obtained for all potentiostats we choose a homemade instrument with a carbon tip working electrode for our subsequent environmental experiments, in which we analyzed maize and sunflower seedlings and rainwater obtained from various sites in the Czech Republic.
ER  -

KRYŠTOFOVÁ, Olga, Libuše TRNKOVÁ, Vojtěch ADAM, Josef ZEHNÁLEK, Jaromír HUBÁLEK, Petr BABULA and René KIZEK. Electrochemical Microsensors for the Detection of Cadmium(II) and Lead(II) Ions in Plants. \textit{Sensors}. 2010, vol.~10, No~6, p.~5308-5328. ISSN~1424-8220.

Detailed Information on Publication Record