Elemental Analysis of Nanomaterial Using Photon-Atom Interaction Based EDXRF Technique

the paper relates a study in developing a quantitative elemental analysis for clay minerals by the EDXRF technique. Elements of interest are Al, Si, K, Ca, Ti and Fe. The regression method involved development of calibration graphs of each of these elements using six different clay minerals reference standards. straight lines were obtained from these calibration graphs with r2 values ranging from 0.923 to 0.997. The accuracy of this regression method was then tested by comparing the quantitative analysis result obtained from fundamental parameter method using argillaceous limestone reference standard as the sample. Fundamental parameter method gives a more accurate result than that of the regression method.

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Elemental analysis of Cu−Ni and Nd−Al alloys and, nickel and iron powders by energy dispersive X-ray fluorescence (EDXRF) technique

Journal of Radioanalytical and Nuclear Chemistry ◽

10.1007/bf02349178 ◽

1999 ◽

Vol 240 (1) ◽

pp. 353-356 ◽

Cited By ~ 1

Author(s):

D. Joseph ◽

I. G. Sharma

Keyword(s):

Elemental Analysis ◽

Al Alloys ◽

Energy Dispersive ◽

Iron Powders ◽

X Ray ◽

Edxrf Technique

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Qualitative elemental analysis of selected potential anti-asthmatic medicinal plant taxa using EDXRF technique

Heliyon ◽

10.1016/j.heliyon.2020.e03260 ◽

2020 ◽

Vol 6 (2) ◽

pp. e03260

Author(s):

S. Jyothsna ◽

G. Manjula ◽

Sateesh Suthari ◽

A.S. Nageswara Rao

Keyword(s):

Medicinal Plant ◽

Elemental Analysis ◽

Edxrf Technique

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High Definition X-Ray Fluorescence: Principles and Techniques

X-Ray Optics and Instrumentation ◽

10.1155/2008/318171 ◽

2008 ◽

Vol 2008 ◽

pp. 1-10 ◽

Cited By ~ 15

Author(s):

Z. W. Chen ◽

Walter M. Gibson ◽

Huapeng Huang

Keyword(s):

Elemental Analysis ◽

State Of The Art ◽

Industrial Process ◽

High Sensitivity ◽

Industrial Applications ◽

High Definition ◽

X Ray ◽

Online Measurements ◽

Edxrf Technique ◽

Doubly Curved

Energy dispersive X-ray fluorescence (EDXRF) is a well-established and powerful tool for nondestructive elemental analysis of virtually any material. It is widely used for environmental, industrial, pharmaceutical, forensic, and scientific research applications to measure the concentration of elemental constituents or contaminants. The fluorescing atoms can be excited by energetic electrons, ions, or photons. A particular EDXRF method, monochromatic microfocus X-ray fluorescence (MμEDXRF), has proven to be remarkably powerful in measurement of trace element concentrations and distributions in a large variety of important medical, environmental, and industrial applications. When used with state-of-the-art doubly curved crystal (DCC) X-ray optics, this technique enables high-sensitivity, compact, low-power, safe, reliable, and rugged analyzers for insitu, online measurements in industrial process, clinical, and field settings. This new optic-enabled MμEDXRF technique, called high definition X-ray fluorescence (HD XRF), is described in this paper.

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Trace elemental analysis of Anti-Jaundice medicinal plants of Telangana using EDXRF technique

Materials Today Proceedings ◽

10.1016/j.matpr.2020.09.317 ◽

2020 ◽

Author(s):

S. Jyothsna ◽

G. Manjula ◽

D. Sammaiah ◽

A.S. Nageswara Rao

Keyword(s):

Medicinal Plants ◽

Elemental Analysis ◽

Trace Elemental Analysis ◽

Trace Elemental ◽

Edxrf Technique

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Signal/Noise Ratio and Elemental Detectivity by Eels

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100054893 ◽

1982 ◽

Vol 40 ◽

pp. 488-489

Author(s):

R. F. Egerton

Keyword(s):

Energy Loss ◽

Electron Energy ◽

Elemental Analysis ◽

Electron Energy Loss Spectroscopy ◽

Emission Spectroscopy ◽

X Ray ◽

Signal Noise ◽

Characteristic Signal ◽

Noise Ratio ◽

Electron Energy Loss

An important parameter governing the sensitivity and accuracy of elemental analysis by electron energy-loss spectroscopy (EELS) or by X-ray emission spectroscopy is the signal/noise ratio of the characteristic signal.

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Morphological and elemental analysis of isolated incubated frog retina-choroid

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100111604 ◽

1984 ◽

Vol 42 ◽

pp. 298-299

Author(s):

B. J. Panessa-Warren ◽

J. B. Warren ◽

H. W. Kraner

Keyword(s):

Elemental Analysis ◽

Pigment Epithelium ◽

Human Retina ◽

Healthy Individuals ◽

Anterior Portion ◽

Pathological Conditions ◽

Frog Retina ◽

Isolated Retina ◽

Vertebrate Eye ◽

Retina Pigment Epithelium

Our previous studies have demonstrated that abnormally high amounts of calcium (Ca) and zinc (Zn) can be accumulated in human retina-choroid under pathological conditions and that barium (Ba), which was not detected in the eyes of healthy individuals, is deposited in the retina pigment epithelium (RPE), and to a lesser extent in the sensory retina and iris. In an attempt to understand how these cations can be accumulated in the vertebrate eye, a morphological and microanalytical study of the uptake and loss of specific cations (K, Ca,Ba,Zn) was undertaken with incubated Rana catesbiana isolated retina and RPE preparations. Large frogs (650-800 gms) were dark adapted, guillotined and their eyes enucleated in deep ruby light. The eyes were hemisected behind the ora serrata and the anterior portion of the eye removed. The eyecup was bisected along the plane of the optic disc and the two segments of retina peeled away from the RPE and incubated.

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Identifying groups of airborne particles by ordination

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100172012 ◽

1994 ◽

Vol 52 ◽

pp. 856-857

Author(s):

M. Shlepr ◽

C. M. Vicroy

Keyword(s):

Elemental Analysis ◽

Energy Dispersive Spectroscopy ◽

Manufacturing Process ◽

Spatial Representation ◽

Airborne Particles ◽

Common Source ◽

Data Set ◽

Microelectronics Industry ◽

Induced Changes ◽

Source Materials

The microelectronics industry is heavily tasked with minimizing contaminates at all steps of the manufacturing process. Particles are generated by physical and/or chemical fragmentation from a mothersource. The tools and macrovolumes of chemicals used for processing, the environment surrounding the process, and the circuits themselves are all potential particle sources. A first step in eliminating these contaminants is to identify their source. Elemental analysis of the particles often proves useful toward this goal, and energy dispersive spectroscopy (EDS) is a commonly used technique. However, the large variety of source materials and process induced changes in the particles often make it difficult to discern if the particles are from a common source.Ordination is commonly used in ecology to understand community relationships. This technique usespair-wise measures of similarity. Separation of the data set is based on discrimination functions. Theend product is a spatial representation of the data with the distance between points equaling the degree of dissimilarity.

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Elemental analysis of human erythrocytes

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010015318x ◽

1989 ◽

Vol 47 ◽

pp. 242-243

Author(s):

S. A. Livesey ◽

A. A. del Campo ◽

E. S. Griffey ◽

D. Ohlmer ◽

T. Schifani ◽

...

Keyword(s):

Sample Preparation ◽

Elemental Analysis ◽

Human Erythrocyte ◽

Spectroscopic Analysis ◽

Model System ◽

Human Erythrocytes ◽

List Type ◽

Chemical Fixation ◽

Ethanol Dehydration ◽

Lowicryl K4m

The aim of this study is to compare methods of sample preparation for elemental analysis. The model system which is used is the human erythrocyte. Energy dispersive spectroscopic analysis has been previously reported for cryofixed and cryosectioned erythrocytes. Such work represents the reference point for this study. The use of plastic embedded samples for elemental analysis has also been documented. The work which is presented here is based on human erythrocytes which have been either chemically fixed and embedded or cryofixed and subsequently processed by a variety of techniques which culminated in plastic embedded samples.Heparinized and washed erythrocytes were prepared by the following methods for this study :(1). Chemical fixation in 4% paraformaldehyde/0.25% glutaraldehyde/0.2 M sucrose in 0.1 M Na cacodylate, pH 7.3 for 30 min, followed by ethanol dehydration, infiltration and embedding in Lowicryl K4M at -20° C.

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