Determination of trace impurities in boron nitride by graphite furnace atomic absorption spectrometry and electrothermal vaporization inductively coupled plasma optical emission spectrometry using solid sampling

Barth, Peter; Haßler, Jürgen; Kudrik, I.; Kriváň, V.

doi:10.1016/j.sab.2007.03.012

Cited by 39 publications

(33 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Black phosphorus (BP) differs significantly from other layered two‐dimensional semiconductor nanomaterials, such as graphene, hexagonal boron nitride, and transition metal dichalcogenides, in its physical and chemical properties . Layered BP has potential applications in optoelectronic and nanoelectronic devices .…”

Section: Introductionmentioning

confidence: 99%

Number‐of‐layer, pressure, and temperature resolved bond–phonon–photon cooperative relaxation of layered black phosphorus

Liu

Yang

et al. 2016

J Raman Spectroscopy

View full text Add to dashboard Cite

We systematically examined the effects of number‐of‐layer, pressure, and temperature on the bond length and energy, Debye temperature, atomic cohesive energy, and binding energy density for layered black phosphorus using bond–phonon–photon spectrometric methods. We clarified the following: (1) atomic under‐coordination shortens and stiffens the PP bond, which raises the B2g and Ag2 phonon frequency and widens the bandgap, (2) bond thermal elongation and weakening soften all phonon modes, and (3) bond mechanical compression has the opposite effect of heating on phonon frequency relaxation. The phonon and photon energy depends on the bond length and energy, which determines the relevant elasticity and thermal stability of layered structure. More broadly, the approaches and findings of this work provide both insight into and efficient tools for further exploration of unusual behaviors of other two‐dimensional substance. Copyright © 2016 John Wiley & Sons, Ltd.

show abstract

Section: Introductionmentioning

confidence: 99%

Number‐of‐layer, pressure, and temperature resolved bond–phonon–photon cooperative relaxation of layered black phosphorus

Liu

Yang

et al. 2016

J Raman Spectroscopy

View full text Add to dashboard Cite

show abstract

“…In this way, the organic matter was eliminated and matrix effects reduced as observed by the similarity of the analyte signal profiles in the presence and absence of sample. Additionally, as observed by Detcheva et al 29 and Barth et al, 24 halogencontaining modifiers (such as CCl 2 F 2 ) buffer differences related with the analyte chemical form, which may be different in samples and calibration solution. Consequently, the analyte present in the solid sample and in the dried solution has a quite similar vaporization behavior, as observed in the present work.…”

Section: Resultsmentioning

confidence: 94%

“…19 Electrothermal vaporization (ETV) associated with ICP OES or ICP-MS allows direct solid sampling analysis. Several applications dealing with biological, 20 environmental, 21 geological, 22 polymers, 23 refractory materials, 24 and forensic samples 25 analysis are reported. Nevertheless, only one work about direct element determination in solid pharmaceuticals was found.…”

Section: −1mentioning

confidence: 99%

Element Determination in Pharmaceuticals Using Direct Solid Analysis-Electrothermal Vaporization Inductively Coupled Plasma Optical Emission Spectrometry

Kaczala¹,

Costa²,

Posselt³

et al. 2015

Journal of the Brazilian Chemical Society

View full text Add to dashboard Cite

A solid sampling electrothermal vaporization inductively coupled plasma optical emission spectrometry (ETV-ICP OES) method for determination of As, Cd, Cr, Cu, Mn, Mo, Ni, Pb, Pd, Pt, Rh, Ru and V in pharmaceuticals is proposed. Tricyclic pharmaceuticals were directly analyzed due to their difficult decomposition with acids. Pyrolysis and vaporization temperature, sample mass, and reaction gas (Freon) flow rate were evaluated. The effect of organic and inorganic compounds was evaluated for matrix matching. The limits of detection ranged from 0.04 µg g −1 (Cu) to 107 µg g −1 (As) and the relative standard deviation was lower than 10%. The investigated elements were not detected in the analyzed samples with the exception of Cr in cyclobenzaprine hydrochloride. Since there was no certified reference materials available for metals and metalloids in pharmaceuticals, the accuracy of the method was evaluated by an independent technique and by analyte recovery. Inductively coupled plasma mass spectrometry was employed for analyte determination after sample decomposition by microwave induced combustion. The agreement of the results found by both techniques was better than 87% and analyte recoveries ranged from 91 to 103%.

show abstract

“…22 Electrothermal vaporization (ETV) is meanwhile a wellestablished effective direct solid sampling technique, which provides in combination with inductively coupled plasma optical emission spectroscopy (ICP-OES) a fast analytical multielement determination without extensive sample preparation. 28,29 It has turned out to be a suitable technique especially for the determination of traces in refractory materials and tasks with limited available sample masses like in forensic applications, analysis of auto paints 30 or hair analysis. 24 In the past, many types of matrices were successfully analyzed by ETV-ICP-OES, e.g.…”

Section: Introductionmentioning

confidence: 99%

Direct multi-element analysis of plastic materials via solid sampling electrothermal vaporization inductively coupled plasma optical emission spectroscopy

Börno

Richter

Deiting

et al. 2015

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

In this work the determination of Cd, Cu, Cr, Fe and Sb as organic and inorganic additives in in-house plastic materials (ABS, LDPE) using electrothermal vaporization combined with inductively coupled plasma optical emission spectroscopy is described. The influence of CCl 2 F 2 as gaseous halogenation modifier was investigated. Especially for the carbide forming elements the sensitivity was improved and the memory effects were significantly reduced. Calibration was performed by external calibration and standard addition with aqueous standard solutions added directly into the sample boats. Absolute limits of detection (3s-criterion) range between 0.1 ng (Cd) and 9 ng (Fe) which corresponds to relative values of 0.1 mg kg À1 and 1.6 mg kg À1 , respectively, taking 5 mg as typical sample mass. The detection limits are sufficient to monitor the element contents of plastic materials according to European directives such as European directive on the safety of toys. The developed ETV-ICP-OES method allows a fast analysis with a high sample throughput (3 minutes per analysis), low sample consumption and good trueness and precision for the analyzed elements. Sample preparation is reduced to ashing the samples in a muffle furnace. Furthermore, measurements are possible regardless of the chemical form in the additives. For verification the results obtained with the developed method were compared with measurement results of independent methods ICP-MS/OES after digestion. In addition Cd, Cr and Pb were determined in a solid plastic reference material BAM-H010 to confirm the applicability and accuracy of the method.

show abstract

Determination of trace impurities in boron nitride by graphite furnace atomic absorption spectrometry and electrothermal vaporization inductively coupled plasma optical emission spectrometry using solid sampling

Cited by 39 publications

References 32 publications

Number‐of‐layer, pressure, and temperature resolved bond–phonon–photon cooperative relaxation of layered black phosphorus

Number‐of‐layer, pressure, and temperature resolved bond–phonon–photon cooperative relaxation of layered black phosphorus

Element Determination in Pharmaceuticals Using Direct Solid Analysis-Electrothermal Vaporization Inductively Coupled Plasma Optical Emission Spectrometry

Direct multi-element analysis of plastic materials via solid sampling electrothermal vaporization inductively coupled plasma optical emission spectroscopy

Contact Info

Product

Resources

About