Detection of some industrially relevant elements in water by electrolyte cathode atmospheric glow discharge optical emission spectrometry

Bencs, László; Laczai, Nikoletta; Mezei, P.; Cserfalvi, T.

doi:10.1016/j.sab.2015.03.003

Cited by 39 publications

(9 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this case, the analyzed solution is bombarded with the positive ions, and as a consequence of the sample sputtering, the dissolved metals can be transferred to the discharge phase where the excitation processes occur. At present, the number of interesting applications of different FLC-APGD systems is large and includes the analysis of various water samples, including tap, mineral, river, and waste waters (Ca, K, Mg, Na, Zn), 3 river and waste waters (Cr), 4 snow, tap, and well waters (In, Rh, Te), 5 ground waters (Tl), 6 as well as brines (Ca, K, Mg, Na), 7 human hair and stream sediments (Cd, Cr, Hg, Pb), 8,9 honeys (Ca, Cu, Fe, K, Li, Mg, Mn, Na, Rb, Zn), 10 titanium dioxide (Ag, Ca, Cu, Fe, K, Li, Mg, Na, Pb), 11 zirconium-based alloys (Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Ni, Pb), 12,13 colloidal silica (K, Li, Mg, Na). 14 For the APGD operated with a flowing liquid anode (FLA), the solution surface is struck by the electrons, which are not able to sputter the sample.…”

mentioning

confidence: 99%

Flowing Liquid Anode Atmospheric Pressure Glow Discharge as an Excitation Source for Optical Emission Spectrometry with the Improved Detectability of Ag, Cd, Hg, Pb, Tl, and Zn

2016

View full text Add to dashboard Cite

A novel atmospheric pressure glow discharge generated in contact with a flowing liquid anode (FLA-APGD) was developed as the efficient excitation source for the optical emission spectrometry (OES) detection. Differences in the appearance and the electrical characteristic of the FLA-APGD and a conventional system operated with a flowing liquid cathode (FLC-APGD) were studied in detail and discussed. Under the optimal operating conditions for the FLA-APGD, the emission from the analytes (Ag, Cd, Hg, Pb, Tl, and Zn) was from 20 to 120 times higher as compared to the FLC-APGD. Limits of detections (LODs) established with a novel FLA-APGD system were on average 20 times better than those obtained for the FLC-APGD. A further improvement of the LODs was achieved by reducing the background shift interferences and, as a result, the LODs for Ag, Cd, Hg, Pb, Tl, and Zn were 0.004, 0.040, 0.70, 1.7, 0.035, and 0.45 μg L(-1), respectively. The precision of the FLA-APGD-OES method was evaluated to be within 2-5% (as the relative standard deviation of the repeated measurements). The method found its application in the determination of the content of Ag, Cd, Hg, Pb, Tl, and Zn in a certified reference material (CRM) of Lobster hepatopancreas (TORT-2), four brass samples as well as mineral water and tea leaves samples spiked with the analytes. In the case of brass samples, a reference method, i.e., inductively coupled plasma optical emission spectrometry (ICP-OES) was used. A good agreement between the results obtained with FLA-APGD-OES and the certified values for the CRM TORT-2 as well as the reference values obtained with ICP-OES for the brass samples was revealed, indicating the good accuracy of the proposed method. The recoveries obtained for the spiked samples of mineral water and tea leaves were within the range of 97.5-102%.

show abstract

mentioning

confidence: 99%

Flowing Liquid Anode Atmospheric Pressure Glow Discharge as an Excitation Source for Optical Emission Spectrometry with the Improved Detectability of Ag, Cd, Hg, Pb, Tl, and Zn

2016

View full text Add to dashboard Cite

show abstract

“…18 Furthermore, the low-cost and portable APDP technique has been valued by scholars as an ideal method for detecting trace heavy elements. 19 APDP belongs to the non-thermal plasma (NTP) sourced by the gas discharge at atmospheric pressure. Plasma is a quasi-neutral gas composed of various particles, neutral atoms and molecules, charged particles (electrons and ions), sub-stable particles (excited atoms and molecules, free radicals) and photons.…”

Section: Determination Of Heavy Metal Contentmentioning

confidence: 99%

Monitoring and Ecological Risks of Heavy Metals of Urban Soils in Different Functional Areas Based on Plasma Technology

Jin

Yuan

et al. 2022

Preprint

View full text Add to dashboard Cite

Heavy metal pollution in soil has become a global environmental problem in recent years. This study assessed heavy metals' pollution distribution, level and ecological risk in soils from different functional areas in Shihezi City, China. Heavy metals (Cr, Cu, Pb, Zn, Ni, and Cd) were measured using atmospheric pressure discharge plasma and inductively coupled plasma mass spectrometer. The mean concentration of all heavy metals in soil was higher than heavy metals' background values. The spatial distribution of Cr is the most different, and the distribution of Cu and Zn are similar in other functional regions. The single pollution index indicated that the heavy metals in industrial, traffic, and residential areas were enriched, and the pollution of Cd was more severe than others. The Nemerow pollution index showed that the near Manas River basin coast is alert (still clean), the industrial area is moderately polluted, and all other functional areas are lightly polluted. The potential ecological risk index demonstrated that only the nearshore Manas River Basin is at a mild ecological risk level, while all other functional areas are at a moderate ecological risk level. The determinate power of DEM, temperature, and precipitation were all over 65%, which meant that the topographic and climatic factors were the main factors affecting the change of heavy metal content. Secondly, socio-economic factors are important factors to promote the change of heavy metal content in soil.

show abstract

“… 30 However, as far as we know, the ELCAD systems are seldom employed for the detection of water samples from rivers and lakes, perhaps because of their complex matrix influence. 1 , 25 …”

Section: Introductionmentioning

confidence: 99%

“…Over the past 10 years, ELCAD-type has been widely employed for the detection of various real samples, including brines, mineral water, and brass samples as well as tea leaves, high-salinity well waters, tap water and snow, honeys, human hair and stream sediments, colloidal silica, titanium dioxide, and zircaloys . However, as far as we know, the ELCAD systems are seldom employed for the detection of water samples from rivers and lakes, perhaps because of their complex matrix influence. , …”

Section: Introductionmentioning

confidence: 99%

“…30 However, as far as we know, the ELCAD systems are seldom employed for the detection of water samples from rivers and lakes, perhaps because of their complex matrix influence. 1,25 Recently, we also established a liquid cathode glow discharge (LCGD, a kind of SCGD) for the detection of metal elements in wastewater, 31,32 salt mines, 33 gluconate oral solutions, and blood samples. 34 Herein, to further evaluate the feasibility of the proposed method, the detection of K, Na, Ca, and Mg in water samples from rivers and lakes was investigated.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Liquid Cathode Glow Discharge as an Excitation Source for the Analysis of Complex Water Samples with Atomic Emission Spectrometry

Zhang

et al. 2020

ACS Omega

View full text Add to dashboard Cite

A liquid cathode glow discharge (LCGD) was developed as a low-power and miniaturized excitation source of atomic emission spectrometry (AES) for the determination of K, Na, Ca, and Mg in water samples from rivers and lakes. The discharge stability and parameter influencing the analytical performance of LCGD-AES were systematically examined. Moreover, the measurement results of water samples using LCGD-AES were verified by ion chromatography (IC). The results showed that the optimized operating parameters are a 660 V discharge voltage, pH = 1.0 HNO 3 as the supporting electrolyte, and a 4.0 mL min –1 solution flow rate. High concentrations of some metals may interfere with the detection of Ca and Mg. Low-molecular-weight organic substances do not have a remarkable enhancement on signal intensity. With the addition of 0.5% cetyltrimethylammonium chloride (CTAC), the emission intensity of elements can enhance significantly. However, it is not used to further evaluate the analytical performance due to instability of plasma after adding CTAC. The maximum power of LCGD is 52 W. The limits of detection and precision (RSD, in 1 mg L –1 ) of K, Na, Ca, and Mg are 0.20, 0.02, 0.01, and 0.01 mg L –1 and 0.9, 1.5, 0.6, and 1.2%, respectively. The measurement results of K, Na, Ca, and Mg in water samples by LCGD-AES are basically in agreement with the reference values measured by IC. The recovery of samples ranged from 84 to 113% except for Na, suggesting that the measurement results have high accuracy and reliability. All the results indicated that the LCGD-AES can provide an alternative analytical method for in situ, real-time, on-line determination of K, Na, Ca, and Mg in water samples from rivers and lakes.

show abstract

Detection of some industrially relevant elements in water by electrolyte cathode atmospheric glow discharge optical emission spectrometry

Cited by 39 publications

References 33 publications

Flowing Liquid Anode Atmospheric Pressure Glow Discharge as an Excitation Source for Optical Emission Spectrometry with the Improved Detectability of Ag, Cd, Hg, Pb, Tl, and Zn

Flowing Liquid Anode Atmospheric Pressure Glow Discharge as an Excitation Source for Optical Emission Spectrometry with the Improved Detectability of Ag, Cd, Hg, Pb, Tl, and Zn

Monitoring and Ecological Risks of Heavy Metals of Urban Soils in Different Functional Areas Based on Plasma Technology

Liquid Cathode Glow Discharge as an Excitation Source for the Analysis of Complex Water Samples with Atomic Emission Spectrometry

Contact Info

Product

Resources

About