Alterations in the composition of growth cartilage septa during calcification studied by microscopic X-ray elemental analysis

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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EVOLUTIONARY QUANTITATIVE FULL-PROFILE X-RAY PHASE ANALYSIS BASED ON THE RIETVELD METHOD, A SELF-CONFIGURABLE MULTIPOPULATION GENETIC ALGORITHM AND ELEMENTAL ANALYSIS DATA

Industrial laboratory Diagnostics of materials ◽

10.26896/1028-6861-2018-84-3-25-31 ◽

2018 ◽

Vol 84 (3) ◽

pp. 25-31

Author(s):

A. N. Zaloga ◽

P. S. Dubinin ◽

I. S. Yakimov ◽

O. E. Bezrukova ◽

S. V. Burakov ◽

...

Keyword(s):

Genetic Algorithm ◽

Phase Analysis ◽

Elemental Analysis ◽

Rietveld Method ◽

Analysis Data ◽

Elemental Analysis Data ◽

X Ray ◽

Full Profile

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4-vinylpyridine derivatives: Protonation, methylation and silver(I) coordination chemistry

Journal of Chemical Research ◽

10.1177/1747519821989659 ◽

2021 ◽

pp. 174751982198965

Author(s):

Guoqi Zhang

Keyword(s):

Mass Spectrometry ◽

Schiff Base ◽

Coordination Chemistry ◽

Elemental Analysis ◽

Silver Complex ◽

Spectroscopic Techniques ◽

X Ray ◽

X Ray Crystallography ◽

Pyridine Moiety ◽

New Compounds

( E)-4-[2-(Pyridin-4-yl)vinyl]benzaldehyde, containing both a 4-vinylpyridine and an aldehyde functionality, is utilized to develop new, highly conjugated chalcone compounds and a bis-Schiff base azine compound. The chalcone-containing compounds are further explored for their protonation, methylation and silver(I) coordination chemistry using the pyridine moiety. In parallel, a cyano-containing analogue, ( E)-4-[2-(pyridin-4-yl)vinyl]benzonitrile is also synthesized and studied for its silver(I) coordination chemistry. These new compounds are fully characterized by mass spectrometry, elemental analysis and spectroscopic techniques. The methylated product of ( E)-1-(9-anthryl)-3-{4-[2-(pyridin-4-yl)vinyl]phenyl}prop-2-en-1-one and a silver complex of ( E)-4-[2-(pyridin-4-yl)vinyl]benzonitrile are structurally determined by X-ray crystallography.

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Cobalt(II) Mercury Tetrathiocyanate Complexes with Lewis Bases

Canadian Journal of Chemistry ◽

10.1139/v73-065 ◽

1973 ◽

Vol 51 (3) ◽

pp. 438-447 ◽

Cited By ~ 42

Author(s):

R. Makhija ◽

L. Pazdernik ◽

R. Rivest

Keyword(s):

Magnetic Susceptibility ◽

Powder Diffraction ◽

Elemental Analysis ◽

Far Infrared ◽

Crystalline Solid ◽

Ultraviolet Spectroscopy ◽

X Ray ◽

Lewis Bases ◽

Polydentate Ligands

A new series of octahedral cobalt(II) complexes are formed when CoX2(X = Cl, Br, I, SCN) reacts with Hg(SCN)2 in the presence of Lewis bases. These complexes of stoichiometry CoHg(SCN)4•2L (L = THF, dioxane, pyridine, aniline) are pink to violet solids which slowly decompose to the blue crystalline solid, CoHg(SCN)4, the stable magnetic susceptibility standard. On further reaction of CoHg(SCN)4•2THF with mono-, bi-, and polydentate ligands in dry ethanol, complexes of the following types are obtained: CoHg(SCN)4•2L (L = PΦ3), CoHg(SCN)4•2LL (LL = trien), CoHg(SCN)4•3LL (LL = en, bipy), and CoHg(SCN)4•4LL (LL = phen). The stoichiometry of these were determined by elemental analysis. Possible structures of these are discussed with the help of mid and far infrared, visible, and ultraviolet spectroscopy, magnetic susceptibility, and X-ray powder diffraction. Some new i.r. bands like Co—P, Co—N, and Hg—S are assigned in the low region.

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STUDY OF THE PUREPECHA METALS BY PIXE AND METALLOGRAPHY TECHNIQUES

International Journal of PIXE ◽

10.1142/s0129083506000897 ◽

2006 ◽

Vol 16 (01n02) ◽

pp. 137-143 ◽

Cited By ~ 1

Author(s):

U. MÉNDEZ ◽

D. TENORIO ◽

G. MURILLO ◽

B. MÉNDEZ-GARRIDO ◽

LUIS C. LONGORIA ◽

...

Keyword(s):

Elemental Analysis ◽

X Ray ◽

Suitable Technique ◽

Metallic Artifacts

Proton-Induced-X-Ray-Emission (PIXE) is a suitable technique for the elemental analysis of ancient metallic artifacts, without any deterioration of the samples. Metallography was used to determine the manufacture technique of ancient metallic artifacts. These techniques were applied to study 12 copper artifacts collected, from burial offerings of a "Señor Tarasco", discovered by Eduardo Pareyon, in "El Portal de Matamoros", Uruapan, Michoacán, in 1957.

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00/01128 Elemental analysis of coal by x-ray fluorescence method

Fuel and Energy Abstracts ◽

10.1016/s0140-6701(00)91105-6 ◽

2000 ◽

Vol 41 (2) ◽

pp. 123

Keyword(s):

Elemental Analysis ◽

Fluorescence Method ◽

X Ray

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A new cockroach (Blattaria: Caloblattinidae) from the Upper Triassic Xujiahe Formation of Sichuan Province, southwestern China

Insect Systematics & Evolution ◽

10.1163/1876312x-44022101 ◽

2013 ◽

Vol 44 (2) ◽

pp. 167-174

Author(s):

Yan Fang ◽

Haichun Zhang ◽

Bo Wang ◽

Daran Zheng

Keyword(s):

Elemental Analysis ◽

Anterior Margin ◽

New Genus ◽

Sichuan Province ◽

Upper Triassic ◽

Southwestern China ◽

New Taxon ◽

New Genus And Species ◽

X Ray ◽

Xujiahe Formation

A new genus and species of the cockroach family Caloblattinidae, Dazhublattella lini gen. et sp.n., is described from the Upper Triassic Xujiahe Formation of Sichuan Province, in southwestern China. The new taxon is similar to the Triassic Caloblattina mathildae (Geinitz, 1883) (Vršanský & Ansorge 2007) in the venation and pattern, but differs in the less elongated forewing with arched anterior margin. An elemental analysis of the wing is undertaken using Energy Dispersive X-ray analysis.

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The calcium antagonist diltiazem inhibits calcification enhanced by calcitonin in growth cartilage of rats in ethane-1-hydroxy-1,1-diphosphonate (EHDP)-induced rickets

Acta Endocrinologica ◽

10.1530/acta.0.1130073 ◽

1986 ◽

Vol 113 (1) ◽

pp. 73-81 ◽

Cited By ~ 4

Author(s):

Masao Eguchi ◽

Kenichiro Shibata ◽

Fumio Wada ◽

Hideya Kawamura ◽

Takashi Shimauchi ◽

...

Keyword(s):

Calcium Antagonist ◽

Calcium Ion ◽

Concomitant Administration ◽

Proximal Region ◽

Dependent Manner ◽

Short Term ◽

X Ray ◽

Growth Cartilage ◽

Term Administration ◽

Dose Dependent

Abstract. In an animal model of human rickets developed by giving a short-term administration of large doses of EHDP to young rats, concomitant administration of [Asu1,7]eel calcitonin (CT) with EHDP resulted in the promotion of calcification in growth cartilage. In an attempt to clarify the mechanisms related to the accelerated calcification due to CT, the effects of diltiazem, a calcium antagonist, were studied. Diltiazem suppressed, in a dose-dependent manner, the accelerated calcification due to CT in the growth cartilage, as determined by findings on the soft X-ray photos, contact microradiograph and light microscopic histology of the proximal region of the tibia. This suppression was only evident when diltiazem and CT were given concomitantly. If it is assumed that diltiazem inhibits the entry of calcium ion into the cells of growth cartilage, in the same manner as seen in case of smooth muscle and myocardial cells, then our results indicate that intracellular concentrations of calcium might play an important role in the occurrence of accelerated calcification due to CT.

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