Influence of analyzed solutions on the plasma pencil discharge

a 2012

Influence of analyzed solutions on the plasma pencil discharge

HRDLIČKA, Aleš, Iva VAŇKOVÁ, Pavel SLAVÍČEK, Lukáš NOVOSÁD, Vítězslav OTRUBA et. al.

Základní údaje

Originální název

Influence of analyzed solutions on the plasma pencil discharge

Název česky

Vliv analyzovaných roztoků na výboj plazmové tužky

Autoři

HRDLIČKA, Aleš (203 Česká republika, garant, domácí), Iva VAŇKOVÁ (203 Česká republika), Pavel SLAVÍČEK (203 Česká republika, domácí), Lukáš NOVOSÁD (203 Česká republika, domácí), Vítězslav OTRUBA (203 Česká republika, domácí) a Viktor KANICKÝ (203 Česká republika, domácí)

Vydání

European Symposium on Atomic Spectrometry 2012 - XXth Slovak-Chzech Spectroscopic Conference, 2012

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10402 Inorganic and nuclear chemistry

Stát vydavatele

Slovensko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

stránky konference s konferenčním sborníkem

Kód RIV

RIV/00216224:14740/12:00064553

Organizační jednotka

Středoevropský technologický institut

Klíčová slova česky

plazmová tužka; výboj; kyselina; koncentrace; intenzita;

Klíčová slova anglicky

plasma pencil; discharge; acid; concentration; intensity;

Příznaky

Mezinárodní význam

Změněno: 28. 3. 2013 16:28, Mgr. Aleš Hrdlička, Ph.D.

Anotace

ORIG CZ

V originále

Herein we show an influence of analyzed water solutions containing elements in acid matrices on both the discharge physical characteristics and the excitation capabilities. It is well known that the presence of acids in solutions depresses measured lines intensities. Acids viscosity can worsen the nebulisation efficiency and the presence of acids in the discharge together with abundant water consume a non-negligible amount of the delivered electrical energy. These phenomena result in a decrease of the intensities of measured atomic emission lines of elements in the introduced solution. The determination of the elements in acid matrices is less sensitive than in pure water solutions. This behaviour is also recognizable in case of the presented plasma pencil. Experiments were realized with three single element containing solutions. The selected elements were Cu, Mg and Zn in the concentration range of 1 – 100 mg l-1 and the contents of 70% nitric acid of 2, 10, 20 and 50 ml per 100 ml flask. A decrease of the slopes of the calibration lines depends on the particular spectral line and ranges from about 10 to 20 % for the acid concentration change from 2 to 20 ml per 100 ml flask. These results are supported by changes in the rotational temperature calculated from OH radicals, excitation temperature from a set of Ar lines and electron number density from the Stark effect on hydrogen H beta line. Despite the sensitivity decrease the discharge stability was not very influenced by the presence of the acid which is in contrast to the influence of the pure water. It was also proven that the plasma pencil is capable of reliable determination of zinc content in a commercial multivitamin tab in presence of other matrix substances.

Česky

Byl zjišťován vliv koncentrace kyseliny dusičné ve vzorku na intenzity analytických čar a citlivost.

Návaznosti

ED1.1.00/02.0068, projekt VaV

Název: CEITEC - central european institute of technology

Citovat

HRDLIČKA, Aleš, Iva VAŇKOVÁ, Pavel SLAVÍČEK, Lukáš NOVOSÁD, Vítězslav OTRUBA a Viktor KANICKÝ. Influence of analyzed solutions on the plasma pencil discharge. In European Symposium on Atomic Spectrometry 2012 - XXth Slovak-Chzech Spectroscopic Conference. 2012.

@proceedings{1093588,
   author = {Hrdlička, Aleš and Vaňková, Iva and Slavíček, Pavel and Novosád, Lukáš and Otruba, Vítězslav and Kanický, Viktor},
   booktitle = {European Symposium on Atomic Spectrometry 2012 - XXth Slovak-Chzech Spectroscopic Conference},
   keywords = {plasma pencil; discharge; acid; concentration; intensity;},
   language = {eng},
   title = {Influence of analyzed solutions on the plasma pencil discharge},
   url = {http://www.spektroskopia.sk/esas-scsc/BoA.pdf},
   year = {2012}
}

TY  - CONF
ID  - 1093588
AU  - Hrdlička, Aleš - Vaňková, Iva - Slavíček, Pavel - Novosád, Lukáš - Otruba, Vítězslav - Kanický, Viktor
PY  - 2012
TI  - Influence of analyzed solutions on the plasma pencil discharge
KW  - plasma pencil
KW  - discharge
KW  - acid
KW  - concentration
KW  - intensity;
UR  - http://www.spektroskopia.sk/esas-scsc/BoA.pdf
L2  - http://www.spektroskopia.sk/esas-scsc/BoA.pdf
N2  - Herein we show an influence of analyzed water solutions containing elements in acid matrices on both the discharge physical characteristics and the excitation capabilities. It is well known that the presence of acids in solutions depresses measured lines intensities. Acids viscosity can worsen the nebulisation efficiency and the presence of acids in the discharge together with abundant water consume a non-negligible amount of the delivered electrical energy. These phenomena result in a decrease of the intensities of measured atomic emission lines of elements in the introduced solution. The determination of the elements in acid matrices is less sensitive than in pure water solutions. This behaviour is also recognizable in case of the presented plasma pencil. Experiments were realized with three single element containing solutions. The selected elements were Cu, Mg and Zn in the concentration range of 1 – 100 mg l-1 and the contents of 70% nitric acid of 2, 10, 20 and 50 ml per 100 ml flask. A decrease of the slopes of the calibration lines depends on the particular spectral line and ranges from about 10 to 20 % for the acid concentration change from 2 to 20 ml per 100 ml flask. These results are supported by changes in the rotational temperature calculated from OH radicals, excitation temperature from a set of Ar lines and electron number density from the Stark effect on hydrogen H beta line. Despite the sensitivity decrease the discharge stability was not very influenced by the presence of the acid which is in contrast to the influence of the pure water. It was also proven that the plasma pencil is capable of reliable determination of zinc content in a commercial multivitamin tab in presence of other matrix substances.
ER  -

HRDLIČKA, Aleš, Iva VAŇKOVÁ, Pavel SLAVÍČEK, Lukáš NOVOSÁD, Vítězslav OTRUBA a Viktor KANICKÝ. Influence of analyzed solutions on the plasma pencil discharge. In \textit{European Symposium on Atomic Spectrometry 2012 - XXth Slovak-Chzech Spectroscopic Conference}. 2012.

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