TRACE ELEMENTS IN HUMAN BLOOD: ALTERATIONS ASSOCIATED WITH MYOCARDIAL INFARCTION

1992 ◽  
Vol 02 (04) ◽  
pp. 469-479 ◽  
Author(s):  
T. PINHEIRO ◽  
W. MAENHAUT ◽  
U. WÄTJEN ◽  
M.J. HALPERN
Keyword(s):  
Myocardial Infarction ◽  
Trace Elements ◽  
Blood Cells ◽  
Data Sets ◽  
Sample Type ◽  
Healthy Individuals ◽  
X Ray ◽  
Minor Elements ◽  
Elemental Concentrations ◽  
Cu And Zn

The alteration of concentration levels for two minor elements (K and Ca) and 7 trace elements (Mn, Fe, Cu, Zn, Se, Rb and Pb) in serum and packed blood cells was investigated. The samples originated from 35 patients that had a myocardial infarction and from 29 healthy individuals. The Mn and Pb concentrations were only determined in packed blood cells. Particle-induced X-ray Emission (PIXE) was used to determine the elemental concentrations in the various samples. In blood serum the Fe, Cu and Zn concentrations were found to be altered from normal, while in packed blood cells significant differences were encountered for Ca, Mn, Fe, Cu, Se and Pb. Factor analysis performed on the serum and packed blood cells data matrices revealed one factor for each sample type which allowed distinguishing between healthy and pathological individuals. Furthermore, the elements that permit this discrimination are different for the two data sets. The elements related to this discrimination factor were Fe and Cu for serum and Ca, Mn, Fe, Cu and Zn for packed blood cells.

Trace Element Detection In Particle X-Ray Spectrum

1997 ◽  
Vol 3 (S2) ◽  
pp. 901-902
Author(s):  
John A. Small
Keyword(s):  
X Ray ◽  
Minor Elements ◽  
Elemental Concentrations ◽  
Eds Analysis ◽  
Electron Microscopy Analysis ◽  
Microscopy Analysis ◽  
Counting Statistics ◽  
Automated Scanning ◽  
Individual Particles ◽  
Concentration Levels

One of the main goals of automated scanning electron microscopy analysis (ASEM) of particles is to provide macroscopic phase and compositional information on particle populations based on the energy dispersive x-ray spectrometry, EDS, analysis of several hundred to several thousand individual particles from the sample. The selection and identification of the various elemental groupings is often accomplished by applying techniques for grouping data, such as multivariate or cluster analysis methods, to characteristic x-ray intensities or normalized elemental concentrations. Particle groupings are often based on major and minor elements with concentrations greater than about 1-2 wt. percent. At these concentration levels, the peak-to-background ratios for the characteristic x-ray peaks are sufficiently large that in the absence of severe peak overlaps the elements can be easily identified even in spectra with poor counting statistics. Additional refinement in particle groupings may be possible if reliable information can be obtained on the trace elements present in particles at less than about 1-2 wt.%.

Effect of proteinate or sulphate mineral sources on trace elements in blood and liver of piglets

2000 ◽  
Vol 71 (1) ◽  
pp. 131-139 ◽  
Author(s):  
S. Schiavon ◽  
L. Bailoni ◽  
M. Ramanzin ◽  
R. Vincenzi ◽  
A. Simonetto ◽  
...  
Keyword(s):  
Trace Elements ◽  
Red Blood Cells ◽  
Blood Cells ◽  
Plasma Levels ◽  
Natural Food ◽  
Blood Samples ◽  
Mineral Supplements ◽  
The Common ◽  
Cu And Zn

AbstractFour hundred piglets were housed in 20 pens and offered for 42 days a pre-starter and then a starter compound supplemented with trace elements given as sulphates (SULF) or proteinates (PROT) at a common level (100) or at a reduced level (20) of inclusion. The common level supplied 278, 148, 315 and 98 mg/kg and the reduced level supplied 128, 38, 135 and 50 mg/kg of iron (Fe), copper (Cu), zinc (Zn) and manganese (Mn), respectively, taking into account the natural food contents. Proteinates used in the trial were analysed and described in terms of content and quality of different potential ligands. Piglet growth was not affected by any treatment. At the end of the trial blood samples were collected from eight pigs for each treatment. These animals were slaughtered and their livers were removed, weighed and analysed. Compared with SULF, PROT increased significantly plasma levels of Fe (25·1 v. 15·7 μmol/l), haemoglobin (10·9 v. 10·4 g/dl) and the number of red blood cells (6·4 v. 6·1 millions per μl) but the liver recovery of Fe was not affected by any treatment. In piglets receiving PROT the liver content of Cu and Zn increased significantly compared with those receiving SULF. On reducing the dosage, Cu in the liver significantly decreased with SULF but not with PROT and the amount of Zn decreased more with SULF than with PROT. The results may reflect a better availability of Cu and Zn when proteinates rather than sulphates were used as mineral supplements.

PIXE ANALYSIS OF TRACE ELEMENTS IN CLAM SHELLS MARKED WITH IRON RUSTING

1996 ◽  
Vol 06 (03n04) ◽  
pp. 517-522 ◽  
Author(s):  
YOSHINORI KOSHIKAWA ◽  
NOBUAKI ARAI ◽  
WATARU SAKAMOTO ◽  
KOJI YOSHIDA
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Intensity Ratio ◽  
Ruditapes Philippinarum ◽  
Pixe Analysis ◽  
X Ray ◽  
Elemental Concentrations ◽  
Element Concentrations ◽  
Pixe Method

Trace element concentrations in short necked clam Ruditapes philippinarum marked shells with iron rusting were determined by particle induced X-ray emission (PIXE) method. Element such as Ca, Mn, Fe, Zn, Sr, and Br were detected in the shells. The Fe/Ca X-ray intensity ratio decreased exponentially on the day after marking. It was concluded that the higher Fe concentration on marked clams was caused by attached iron rusting. The concentrations of Fe, Br, and Sr differed among the 3 stations (Kamaya, Shigaki, and Iwatani), suggesting that elemental concentrations may be related to the growth of clams.

scholarly journals ELEMENTAL ANALYSIS OF AEROSOL SAMPLES USING PIXE TECHNIQUE

2021 ◽  
Vol 9 (5) ◽  
pp. 175-180
Author(s):  
Deepali Modi
Keyword(s):  
Trace Elements ◽  
Data Analysis ◽  
Proton Beam ◽  
Elemental Analysis ◽  
Hpge Detector ◽  
Low Energy ◽  
X Rays ◽  
X Ray ◽  
Minor Elements

In this work a complex study of the capabilities Particle Induced X-Ray emission(PIXE) technique for the determination of minor constituents of aerosol samples has been done.The PIXE experiments were carried out at Cyclotron at Department of Physics, Panjab University Chandigarh using ~2.7MeV proton beam. The X-rays were detected with the help of low energy HPGE detector. Total fifteen samples were collected from various locations in Chandigarh.The minor elements identified in the aerosol samples wereS,Cl,K,Ca,Ti,Cr,Mn,Fe,Ni,Zn,V,Br and Pb. The data analysis was done using GUPIX software to extract the quantity of the trace elements.

Crystallization and preliminary X-ray analysis of human thioredoxin peroxidase-B from red blood cells

1999 ◽  
Vol 55 (2) ◽  
pp. 536-538 ◽  
Author(s):  
Ewald Schröder ◽  
Michail N. Isupov ◽  
Anouska Naran ◽  
Jennifer A. Littlechild
Keyword(s):  
Polyethylene Glycol ◽  
Synchrotron Radiation ◽  
Blood Cells ◽  
Data Sets ◽  
Polyethylene Glycol 400 ◽  
Crystal Forms ◽  
X Ray ◽  
Vapour Diffusion ◽  
Thioredoxin Peroxidase ◽  
Orthorhombic Crystals

Two different crystal forms of human thioredoxin peroxidase-B have been grown by vapour diffusion using polyethylene glycol 400 as a precipitant. Monoclinic P21 crystals were grown from freshly purified protein, whilst orthorhombic P212121 crystals were grown from purified protein that had been stored in ammonium sulfate, but otherwise under the same conditions. The diffraction from both crystal forms was observed to extend to beyond 2.0 Å resolution using synchrotron radiation. Complete native data sets to 1.8 and 3.7 Å have been collected from the monoclinic and orthorhombic crystals, respectively.

An Energy Dispersive System for the Analysis of Trace Elements in Human Blood Serum

1972 ◽  
Vol 16 ◽  
pp. 124-133
Author(s):  
P. S. Ong ◽  
P. K. Lund ◽  
C. E. Litton ◽  
B. A. Mitchell
Keyword(s):  
Trace Elements ◽  
Blood Serum ◽  
Detection System ◽  
X Ray ◽  
University Of Texas ◽  
Pathology Section ◽  
Dispersive System ◽  
The University ◽  
Preparation Techniques ◽  
Cu And Zn

AbstractA computerized systetn, consisting of a fluorescence x-ray source (Philips), an Si (Li) detector (Ortec), and a mini Computer (Xerox) is currentiy in operation at The University of Texas M. D. Anderson Hospital and Tumor Institute, Experimentel Pathology Section, for the analysis of trace elements in biological specimens. The elements of interest are Fe, Cu, and Zn for possible significance in the detection and study of cancer. The detection system is being used for comparatively routine analysis of these elements, which are present in blood serum in the ppM range. With appropriate sample preparation techniques, using 1 ml of serum, the limit of detectability for these elements is estimated to be 100 ppB (1 in 107). Further refinement is possible, and research in this direction continues.

scholarly journals Standardization of proton induced X-ray emission for analysis of trace elements in thick samples

2019 ◽  
Vol 97 (8) ◽  
pp. 875-879
Author(s):  
Johar Zeb ◽  
Shad Ali ◽  
Muhammad Haneef ◽  
Azhar Muhammad Naeem ◽  
Jehan Akbar
Keyword(s):  
Experimental Data ◽  
Trace Elements ◽  
Close Agreement ◽  
Theoretical Data ◽  
Standard Reference Materials ◽  
Standard Samples ◽  
X Ray ◽  
Elemental Concentrations ◽  
Pelletron Accelerator

This paper presents the standardization of proton induced X-ray emission (PIXE) technique for the analysis of trace elements in thick, standard samples. Three standard reference materials, titanium, copper, and iron base alloys, were used for the study due to their availability. The proton beam was accelerated up to 2.57 MeV energy by 5UDH-II tandem Pelletron accelerator, and samples were irradiated at different geometries and durations. Spectra were acquired using a multi-channel spectrum analyzer, and spectra analyses were done using GUPIXWIN software for determination of elemental concentrations of trace elements. The obtained experimental data were compared with theoretical data and results were found to be in close agreement.

Determination of trace elements Fe, cu and Zn in the Algerian cancerous plasma using X‐ray fluorescence (XRF)

2019 ◽  
Vol 49 (2) ◽  
pp. 313-321 ◽  
Author(s):  
L. Lahmar ◽  
M.E.A. Benamar ◽  
M.A. Melzi ◽  
C.H. Melkaou ◽  
Y. Mabdoua
Keyword(s):  
Trace Elements ◽  
X Ray ◽  
Cu And Zn

MONITORING TRACE ELEMENTS IN DIETS AND LIFE STAGES OF THE ONION MAGGOT, HYLEMYA ANTIQUA (DIPTERA: ANTHOMYIIDAE), WITH X-RAY ENERGY SPECTROMETRY

1979 ◽  
Vol 111 (11) ◽  
pp. 1293-1298 ◽  
Author(s):  
J. A. McLean ◽  
I. G. Stump ◽  
J. M. D’Auria ◽  
J. Holman
Keyword(s):  
Trace Elements ◽  
Life Stages ◽  
Larval Diet ◽  
Male And Female ◽  
Onion Maggot ◽  
Hylemya Antiqua ◽  
Normal Concentration ◽  
X Ray ◽  
Ambient Levels ◽  
Cu And Zn

AbstractElemental profiles of onion maggots reared on a dried carrot based medium were monitored by X-ray energy spectrometry. Adult insects had higher levels of S, Fe, Cu, and Zn and lower levels of Cl, K, Br, and Sr than were apparently present in the medium. Addition of Rb to the larval diet resulted in a higher than normal concentration of Rb in the newly-emerged adults. This concentration of Rb decreased to ambient levels after 10 days. When Y was added to the rearing medium, it was not incorporated into the adult flies. Pupae from the Ga-supplemented diet failed to mature. The elemental profiles of male and female adults from the Rb- and Y-rearings differed significantly from the control rearings and each other. X-ray energy spectrometry shows much promise in helping define and monitor mineral requirements in insects.

scholarly journals Meteorite from Astomulyo Village, Central Lampung, Indonesia: Investigation of its chemical properties

2021 ◽  
Vol 882 (1) ◽  
pp. 012011
Author(s):  
D G Harbowo ◽  
R Muztaba ◽  
H L Malasan ◽  
S Sumardi ◽  
L K Agustina ◽  
...  
Keyword(s):  
Trace Elements ◽  
High Speed ◽  
Chemical Properties ◽  
X Ray ◽  
Minor Elements ◽  
H Chondrites

Abstract In early 2021, a rare extraterrestrial object passed at high speed, followed by a powerful boom, with a bright flare crossing the atmosphere and falling in Astomulyo Village, Punggur, Central Lampung, Indonesia. This object has been scientifically determining as a meteorite. Toward the spot where we first found it, we presented this object named Astomulyo meteorite. This research investigated its chemical properties using an X-ray fluorescence (XRF) analyzer. As the result, the major composition of this meteorite is Si (28.3-27.1%), Fe (22.1-19.8%), Mg (17.3-15.2%), Al (2.9-2.4%), Ca (1.7-1.9%), and S (1.0-0.97%). Its minor elements are Mn, Ni, Cr, P, and some trace elements such as Co, Ti, Sb, Sn, V, Cd, Zn. This meteorite suggested classifying as the H-Chondrites group. Fe, Ni, Al, and Ti enrichment occur on the meteorite’s surface. It is probably related to this meteorite origin and continuously processes until it falls to the Earth’s surface.

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