Characterization and application of in-vacuum PIXE/EBS system for the direct elemental analysis of thick solid biological samples

Rihawy, M.S.; Halloum, D.

doi:10.1016/j.apradiso.2017.12.016

Cited by 8 publications

(4 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study for the case of IAEA Animal Blood, elements K, Ca, Fe, Cu, Zn, Br and Rb were obtained with 91-108% relative to certified values. However, for the same IAEA RM Animal Blood, 87-108% of recovery was obtained by Kwiatek et al [24] for the elements P, K, Ca and Fe and 80-110% of recovery was reported by Rihway and Halloum [25] for the elements K, Ca, Fe and Zn relative to certified values.…”

Section: Comparison Of Values Determined By Pixe With Certified Valuesmentioning

confidence: 55%

PIXE Analysis of NIST and IAEA Biological Reference Materials

Naidu¹

2018

IJRASET

View full text Add to dashboard Cite

Particle induced X-ray emission (PIXE) technique was employed for analysis of trace elements in two biological standard reference materials: Bovine Liver (1577c) and Animal Blood (A-13) prepared by National Institute of Standards and Technology (NIST), USA and International Atomic Energy Agency (IAEA), Vienna respectively. The PIXE experiments were carried out by using 3 MV Tandem Pelletron Accelerator facility at Ion Beam Laboratory (IBL), Institute of Physics (IOP), Bhubaneswar, India. A proton beam of 3 MeV energy was used to excite the samples under study. The concentrations of the elements obtained in the reference materials were compared with the certified values of NIST and IAEA. The determined values were 88-125% relative to NIST and IAEA certified values except for Mn in the Animal Blood sample.

show abstract

Section: Comparison Of Values Determined By Pixe With Certified Valuesmentioning

confidence: 55%

PIXE Analysis of NIST and IAEA Biological Reference Materials

Naidu¹

2018

IJRASET

View full text Add to dashboard Cite

show abstract

“…The elemental concentrations of C, N, O and S were extrapolated to 100% to evaluate the Hydrogen content in each SPEEK sample, and the overall results are presented in Table 3. Applying combination of other IBA techniques simultaneously with RBS spectrometry, [ 6 ] namely nuclear reaction analysis (NRA), and elastic recoil detection analysis (ERDA) techniques, and perform analysis of the data obtained results in more reliable elemental concentration values. However, these procedures are time consuming processes, where further experimental conditions applied must be carefully considered, several detectors are required and analysis of multiple obtained spectra is needed.…”

Section: Resultsmentioning

confidence: 99%

“…Owing to their non‐destructive nature and multi‐elemental quantification ability, simultaneous EBS and PIXE can provide useful information on the elemental composition of materials and their related depth profiles. [ 6,7 ] The term RBS is normally mentioned in the literature as abbreviations of Rutherford Backscattering and Elastic backscattering, respectively. They include elastic scattering actions of ion beam on atoms caused by either pure Coulomb interaction of nucleus (RBS) or those caused when Coulomb barriers are overcome (EBS).…”

Section: Introductionmentioning

confidence: 99%

RBSandPIXEdata analysis by two dimensional correlation mapping techniques: On the effects of ion irradiation and sulfonation on poly(ether ether ketone) membranes

Lafi

Rihawy

2020

X-Ray Spectrometry

View full text Add to dashboard Cite

The present work proposes the use of two‐dimensional correlation mapping (2D‐CM) methods to analyze both particle induced X‐ray emission (PIXE) and Rutherford back scattering (RBS) spectra. RBS spectra of ion irradiated (H+ and He2+) poly(ether ether ketone) (PEEK) films were analyzed by both generalized and hybrid 2D‐CM techniques to reveal the chemistry involved in different ion irradiation types. The analysis indicated different irradiation mechanisms using He2+ and H+ high energy ion beams and was assigned to X‐linking and Y‐linking, respectively. The effects of sulfonation on the structure of PEEK membranes were also analyzed from their RBS and PIXE spectra. The sequential order of elemental concentration change with increasing the degree of sulfonation (DS) was determined as: N→S→O→C, and the origin of Nitrogen was assigned to the casting solvent as revealed from nuclear magnetic resonance (NMR) spectra. In addition, Hetro‐2D‐CM‐PIXE‐RBS analysis indicated the presence of three RBS Sulfur signals, and were assigned to Sulfur at surface, in the middle and in depth. 2D‐CM techniques could be considered as a promising approach to enrich information obtained by ion beam analysis.

show abstract

“…The combined use of the PIXE and RBS allows us to be used for elemental identification and quantification of elements from biological and organic samples. Modern ion beam analysis programs are trying to make PIXE and RBS compatible in a single measurement [84]. There are softwares making self-consistent analysis of multiple ion beam techniques like a simultaneous RBS and ERDA in [85].…”

Section: Backscattering Methodsmentioning

confidence: 99%

Avaliação crítica da quantificação elementar (incluindo hidrogênio, carbono e oxigênio) por emissão de raios-X induzidos por prótons, PIXE, e por fluorescência de raios-X, XRF

Arteta¹

View full text Add to dashboard Cite

Among various analytical techniques, X-Ray Fluorescence (XRF) and Particle-Induced X-Ray Emission (PIXE) allow a highly sensitive, multi-elementary analysis, traditionally used in areas dealing with thin films, mineral, geological, archaeological and biological samples, etc. PIXE and XRF techniques allow quantifying the elemental composition of a sample measuring their characteristic X-rays. In thick homogeneous samples, the determination of the elemental mass concentrations requires prior knowledge of several parameters involved in the interaction of radiation with matter, such as the proton stopping power in the sample for PIXE and the X-ray mass absorption coefficients for both PIXE and XRF, which in turn depend on the elemental concentrations of the sample. In this work we will review and evaluate different methods for determining the mass concentrations that have been developed over the years, obtaining good accuracy in most cases, especially with geological and mineral samples. In samples with low-Z elements, like H, B, C, N, O and/or F, not detected in PIXE nor XRF, the methods to determine elemental concentrations do not have the same level of accuracy, except for major elements. Knowing the concentrations of these major elements, we can extract information of the undetected elements in the samples. We suggest a method for determining the concentrations of trace elements based on the knowledge of at least two major elements, constructing an equivalent sample-matrix constituted by hydrogen, carbon and oxygen with the same X-ray mass absorption coefficients and proton stopping power of the original sample-matrix made of hydrogen, carbon, nitrogen and oxygen, which are the major elements in biological and organic samples. Hence, the trace elements of the sample can be fully analyzed with an accuracy better than 1%. In PIXE analysis, under certain conditions, numerical calculations on thick and homogeneous samples show that on common materials, it is possible to retrieve the hydrogen amount in the sample with acceptable accuracy. The calculation of the uncertainties indicates that the method of determining hydrogen is quite sensitive to instrumental uncertainties, stressing the need for more precise PIXE measurements. A generalization of the method is also considered for all kinds of low-Z sample-matrix, not only biological or organic, having accuracies lower than 10%. Other applications and limitations are also discussed.

show abstract

Characterization and application of in-vacuum PIXE/EBS system for the direct elemental analysis of thick solid biological samples

Cited by 8 publications

References 43 publications

PIXE Analysis of NIST and IAEA Biological Reference Materials

PIXE Analysis of NIST and IAEA Biological Reference Materials

RBSandPIXEdata analysis by two dimensional correlation mapping techniques: On the effects of ion irradiation and sulfonation on poly(ether ether ketone) membranes

Avaliação crítica da quantificação elementar (incluindo hidrogênio, carbono e oxigênio) por emissão de raios-X induzidos por prótons, PIXE, e por fluorescência de raios-X, XRF

Contact Info

Product

Resources

About