Low power capacitively coupled plasma microtorch for simultaneous multielemental determination by atomic emission using microspectrometers

Frențiu, Tiberiu; Petreuş, Dorin; Șenilă, Marin; Mihaltan, Alin Ironim; Darvasi, Eugen; Ponta, Michaela; Plaian, Emil; Cordos, Emil A.

doi:10.1016/j.microc.2010.09.003

Cited by 27 publications

(15 citation statements)

References 29 publications

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“…The excitation capability of the plasma source for the elements under study was similar to that observed for other elements, when the atomic resonance lines with low excitation energy (<7 eV) were also the most prominent [ 63 , 66 ]. The transitions corresponding to resonance and non-resonance lines with low excitation energy occur through electron–atom collisions and are consistent with the low electron density in the low-power Ar plasma [ 68 ]. The emission spectrum poor in lines does not entail analytical limitations, but renders possible the use of low resolution microspectrometers (0.35–0.4 nm FWHM).…”

Section: Discussionmentioning

confidence: 59%

“…The observation height does not critically influence the magnitude of the emission signal, since the excitation energies of the resonance and non-resonance lines of these elements have close values. The low-power Ar discharge is short, and the density of electrons and their energy rapidly decrease over 0–1 mm height above the electrode tip [ 68 ]. The maximum emission of analytes observed near the Mo electrode tip indicated that the 7.1 (1st) and 15.6 (2st) eV electrons emitted by the Mo microelectrode were involved in plasma ignition and collisional excitation of atoms, thus generating spectral lines with excitation energy below 7.6 eV.…”

Section: Discussionmentioning

confidence: 99%

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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

et al. 2021

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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.

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Section: Discussionmentioning

confidence: 59%

Section: Discussionmentioning

confidence: 99%

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

et al. 2021

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“…Çevresel numunelerdeki nikel iyonlarının düşük konsantrasyonlarda bulunmasından dolayı bu iyonların tespiti için güvenilir ve hassas tekniklere ihtiyaç vardır. Mikro plazma atomik emisyon spektrometresi (MP-AES); çeşitli çevresel numunelerde ve su örneklerinde eser ve toksik elementlerin konsantrasyonlarının belirlenmesinde kullanılan hızlı, seçici, hassas ve düşük maliyetli bir tekniktir [12][13][14][15].…”

Section: Introductionunclassified

TAGUCHİ DENEY TASARIMI KULLANILARAK UÇUCU KÜL İLE Ni (II) GİDERİMİNDE BAZI ADSORPSİYON PARAMETRELERİNİN ETKİNLİĞİNİN İRDELENMESİ

Serencam

Uçurum

2019

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

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Bu çalışmada, önemli bir sanayi artığı olan Uçucu Külün, toksik bir ağır metal iyonu olarak bilinen Nikel (II)'in sulu çözeltiden adsorpsiyonunda rol oynayan önemli parametrelerden pH, ilk metal konsantrasyonu ve adsorpsiyon süresi Taguchi deney tasarımı kullanılarak optimize edilmiştir. Adsorpsiyon deneyleri, L9 ortogonal dizaynına göre 9 adet deney yapılarak gerçekleştirilmiştir. Deney sonuçlarının değerlendirilmesinde varyans analizi ve sinyal/gürültü oranı kullanılmıştır. Elde edilen sonuçlara göre en iyi uzaklaşma verimi (%); pH 6'da, 180 ppm giriş konsantrasyonunda ve 30 dakika adsorpsiyon süresinde elde edilmiştir. Bu çalışma ile birlikte, Taguchi deney tasarımının adsorpsiyon çalışmaları için oldukça uygun bir deney tasarım metodu olduğu ve uçucu külün sulu çözeltilerden ağır metal (nikel) gideriminde adsorplama kabiliyetinin iyi olduğu sonuçlarına ulaşılmıştır.

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“…Maintenance high costs of the inductive coupled plasmas led researchers to investigate less expensive methods in atomic spectrometry [8].…”

Section: Introductionmentioning

confidence: 99%

Portable system for heavy metals detection based on spectral analysis

Petreuş

Pătărău

Etz

et al. 2014

Proceedings of the 2014 37th International Spring Seminar on Electronics Technology

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The current work presents a miniaturized, capacitive coupled plasma micro-torch equipment used for simultaneous multielemental analysis. The equipment is used in environment and foods control. The equipment is composed of: an RF generator supplying a resonant transformer for the plasma flame generation, a vaporizer, a microcontroller that controls the plasma generator, a computer which runs a PC interface that controls the RF generator and the vaporizer, a spectrometer for the spectral analysis, battery, inverter and an argon tank

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Low power capacitively coupled plasma microtorch for simultaneous multielemental determination by atomic emission using microspectrometers

Cited by 27 publications

References 29 publications

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

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

TAGUCHİ DENEY TASARIMI KULLANILARAK UÇUCU KÜL İLE Ni (II) GİDERİMİNDE BAZI ADSORPSİYON PARAMETRELERİNİN ETKİNLİĞİNİN İRDELENMESİ

Portable system for heavy metals detection based on spectral analysis

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