Calibration analysis of zeolites by laser induced breakdown spectroscopy

Horňáčková, M.; Grolmusová, Z.; Horňáček, Michal; Rakovský, Jozef; Hudec, Pavol; Veis, P.

doi:10.1016/j.sab.2012.07.003

Cited by 17 publications

(6 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…LIBS measurements were carried out using the apparatus from our recent studies [9,10]. Main parts of the used setup are a Q-switched pulsed Nd:YAG laser operated at the second harmonic frequency (532 nm, max.…”

Section: Libs Apparatusmentioning

confidence: 99%

See 1 more Smart Citation

Heavy Metals Detection in Zeolites Using the LIBS Method

Horňáčková

Plavčan

Horňáček

et al. 2019

Atoms

View full text Add to dashboard Cite

In this study, a possibility of laser-induced breakdown spectroscopy (LIBS) for the analysis of zeolites containing copper, chromium, cobalt, cadmium, and lead in the concentration range of 0.05–0.5 wt.% is discussed. For the LIBS analysis, microporous ammonium form of Y zeolite with the silicon to aluminum molar ratio of 2.49 was selected. Zeolites, in the form of pressed pellets, were prepared by volume impregnation from the water solution using Co(CH3COO)2.4H2O, CuSO4.5H20, K2Cr2O7, PbNO3, and CdCl2 to form a sample with different amounts of heavy metals—Co, Cu, Cr, Pb, and Cd. Several spectral lines of the mentioned elements were selected to be fitted to obtain integral line intensity. To prevent the influence of the self-absorption effect, non-resonant spectral lines were selected for the calibration curves construction in most cases. The calibration curves of all elements are observed to be linear with high regression coefficients. On the other hand, the limits of detection (LOD) were calculated according to the 3σ/S formula using the most intensive spectral lines of individual elements, which are 14.4 ppm for copper, 18.5 ppm for cobalt, 16.4 ppm for chromium, 190.7 ppm for cadmium, and 62.6 ppm for lead.

show abstract

Section: Libs Apparatusmentioning

confidence: 99%

“…This parameter is mostly determined by classical wet chemical analyses. In our recent studies, calibration based [9] and calibration-free laser induced breakdown spectroscopy (CF LIBS) were successfully applied for the determination of Si/Al molar ratios in different zeolite types [10].…”

Section: Introductionmentioning

confidence: 99%

Heavy Metals Detection in Zeolites Using the LIBS Method

Horňáčková

Plavčan

Horňáček

et al. 2019

Atoms

View full text Add to dashboard Cite

show abstract

“…The technique also has several advantages such as high specificity (analysis versus other preparation) and the possibility of avoiding sample transfer. It is therefore an efficacious instrument in the rapidly evolving field of process analytics [2], [9]. LIBS is equally effective for liquids, solids, and gasses.…”

Section: Introductionmentioning

confidence: 99%

Qualitative and semi-quantitative analysis of health-care pharmaceutical products using laser-induced breakdown spectroscopy

Nisar

Dastgeer

Shafiq

et al. 2019

Journal of Pharmaceutical Analysis

View full text Add to dashboard Cite

Laser-induced breakdown spectroscopy (LIBS) is a sensitive optical technique that is capable of rapid multi-elemental analysis. The development of this technique for elemental analysis of pharmaceutical products may eventually revolutionize the field of human health. Under normal circumstances, the elemental analysis of pharmaceutical products based on chemical methods is time-consuming and complicated. In this investigation, the principal aim is to develop an LIBS-based methodology for elemental analysis of pharmaceutical products. This LIBS technique was utilized for qualitative as well as quantitative analysis of the elements present in Ca-based tablets. All the elements present in the tablets were detected and their percentage compositions were verified in a single shot, using the proposed instrument. These elements (e.g., Ca, Mg, Fe, Zn, and others) were identified by the wavelengths of their spectral lines, which were verified using the NIST database. The approximate amount of each element was determined based on their observed peaks and the result was in exact agreement with the content specification. The determination of the composition of prescription drug for patients is highly important in numerous circumstances. For example, the exploitation of LIBS may facilitate elemental decomposition of medicines to determine the accuracy of the stated composition information. Moreover, the approach can provide element-specific, meaningful, and accurate information related to pharmaceutical products.

show abstract

“…Fayyaz et al 126 used CF-LIBS for the analysis of rare-earth elements (La, Ce, Nd, Sm and Yb) in deposits of phosphorite, finding excellent agreement with the results of Energy-Dispersive X-ray (EDX) spectroscopy. Horňáčková et al 127 studied by CF-LIBS acid pitchstone, while Wang et al 128 worked on the analysis of the acidity of iron ore.…”

Section: Applicationsmentioning

confidence: 99%