Application of low-cost electrothermal vaporization capacitively coupled plasma microtorch optical emission spectrometry for simultaneous determination of Cd and Pb in environmental samples

2015 ◽  
Vol 121 ◽  
pp. 192-198 ◽  
Author(s):  
Tiberiu Frentiu ◽  
Eugen Darvasi ◽  
Sinziana Butaciu ◽  
Michaela Ponta ◽  
Dorin Petreus ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Environmental Samples ◽  
Low Cost ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Emission Spectrometry ◽  
Electrothermal Vaporization ◽  
Capacitively Coupled ◽  
Capacitively Coupled Plasma

scholarly journals Simultaneous Determination of As, Bi, Sb, Se, Te, Hg, Pb and Sn by Small-Sized Electrothermal Vaporization Capacitively Coupled Plasma Microtorch Optical Emission Spectrometry Using Direct Liquid Microsampling

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2642
Author(s):  
Simion Bogdan Angyus ◽  
Erika Levei ◽  
Dorin Petreus ◽  
Radu Etz ◽  
Eniko Covaci ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Spectral Lines ◽  
Emission Spectrometry ◽  
General Interest ◽  
Electrothermal Vaporization ◽  
Capacitively Coupled ◽  
Capacitively Coupled Plasma

The simultaneous determination of chemical vapor-generating elements involving derivatization is difficult even by inductively coupled plasma optical emission spectrometry or mass spectrometry. This study proposes a new direct liquid microsampling method for the simultaneous determination of As, Bi, Se, Te, Hg, Pb, and Sn, using a fully miniaturized set-up based on electrothermal vaporization capacitively coupled plasma microtorch optical emission spectrometry. The method is cost-effective, free from non-spectral interference, and easy to run by avoiding derivatization. The method involves the vaporization of analytes from the 10 µL sample and recording of episodic spectra generated in low-power (15 W) and low-Ar consumption (150 mL min−1) plasma microtorch interfaced with low-resolution microspectrometers. Selective vaporization at 1300 °C ensured the avoidance of non-spectral effects and allowed the use of external calibration. Several spectral lines for each element even in the range 180–210 nm could be selected. Generally, this spectral range is examined with large-scale instrumentation. Even in the absence of derivatization, the obtained detection limits were low (0.02–0.75 mg kg−1) and allowed analysis of environmental samples, such as cave and river sediments. The recovery was in the range of 86–116%, and the accuracy was better than 10%. The method is of general interest and could be implemented on any miniaturized or classical laboratory spectrometric instrumentation.

Dielectric barrier discharge-optical emission spectrometry for the simultaneous determination of halogens

2016 ◽  
Vol 31 (2) ◽  
pp. 398-405 ◽  
Author(s):  
Deng-Ji Zhang ◽  
Yi Cai ◽  
Ming-Li Chen ◽  
Yong-Liang Yu ◽  
Jian-Hua Wang
Keyword(s):  
Simultaneous Determination ◽  
Dielectric Barrier Discharge ◽  
Radiation Source ◽  
Barrier Discharge ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Emission Spectrometry ◽  
Dielectric Barrier

Dielectric barrier discharge micro-plasma as a radiation source was used for the simultaneous determination of halogens by optical emission spectrometry.

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