scholarly journals Effect of foliar spray from seaweed liquid fertilizer of Ulva reticulata (Forsk.) on Vigna mungo L. and their elemental composition using SEM – energy dispersive spectroscopic analysis

2013 ◽  
Vol 2 (2) ◽  
pp. 119-125 ◽  
Author(s):  
G Ganapathy Selvam ◽  
K Sivakumar
Keyword(s):  
Elemental Composition ◽  
Spectroscopic Analysis ◽  
Foliar Spray ◽  
Vigna Mungo ◽  
Energy Dispersive ◽  
Liquid Fertilizer ◽  
Energy Dispersive Spectroscopic ◽  
Seaweed Liquid Fertilizer

Field-Emission Scanning Electron Microscopy and Energy-Dispersive X-Ray Analysis to Understand the Role of Tannin-Based Dyes in the Degradation of Historical Wool Textiles

2014 ◽  
Vol 20 (5) ◽  
pp. 1534-1543 ◽  
Author(s):  
Annalaura Restivo ◽  
Ilaria Degano ◽  
Erika Ribechini ◽  
Josefina Pérez-Arantegui ◽  
Maria Perla Colombini
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Elemental Composition ◽  
Field Emission ◽  
Cross Sections ◽  
Morphological Changes ◽  
Energy Dispersive ◽  
X Ray ◽  
Edx Analysis ◽  
Scanning Electron

Abstract:An innovative approach, combining field-emission scanning electron microscopy (FESEM) with energy dispersive X-ray spectroscopy (EDX) analysis, is presented to investigate the degradation mechanisms affecting tannin-dyed wool. In fact, tannin-dyed textiles are more sensitive to degradation then those dyed with other dyestuffs, even in the same conservation conditions.FESEM-EDX was first used to study a set of 48 wool specimens (artificially aged) dyed with several raw materials and mordants, and prepared according to historical dyeing recipes. EDX analysis was performed on the surface of wool threads and on their cross-sections. In addition, in order to validate the model formulated by the analysis of reference materials, several samples collected from historical and archaeological textiles were subjected to FESEM-EDX analysis.FESEM-EDX investigations enabled us to reveal the correlation between elemental composition and morphological changes. In addition, aging processes were clarified by studying changes in the elemental composition of wool from the protective cuticle to the fiber core in cross-sections. Morphological and elemental analysis of wool specimens and of archaeological and historical textiles showed that the presence of tannins increases wool damage, primarily by causing a sulfur decrease and fiber oxidation.

Energy Dispersive X-Ray Spectroscopic Analysis

2020 ◽  
pp. 182-205
Author(s):  
Glynis de Silveira ◽  
Terrance E. Conners
Keyword(s):  
Spectroscopic Analysis ◽  
Energy Dispersive ◽  
X Ray

Energy Dispersive X-Ray Spectrometry of Gold-Silver-Copper Standards for Comparison with Historic Gold Objects

1990 ◽  
Vol 185 ◽  
Author(s):  
S.M. White ◽  
R.J. Koestler ◽  
C. Blair ◽  
N. Indictor
Keyword(s):  
Elemental Composition ◽  
Ternary Mixtures ◽  
Energy Dispersive ◽  
X Ray ◽  
Silver Copper ◽  
Gold Silver

AbstractSeven ternary mixtures of gold(80-95%)-silver(4-15%)-copper(1-15%) were prepared as standards for the determination of elemental composition by energy dispersive X-ray spectrometry (EDS). Two geometric forms (flat and oblate) of the standards were prepared for comparison to the analyses of historic gold objects. Surface analyses were performed. Polished sections of the standards were also analysed Comparison between two methods for collecting EDS data is reported. The analyses are discussed in terms of developing a generalized methodology for estimating elemental composition of museum artifacts.

Effect of seaweed liquid fertilizer on yield and quality of Capsicum annum L.

2019 ◽  
Vol 39 (5) ◽  
pp. 406-410 ◽  
Author(s):  
S. Vijayakumar ◽  
S. Durgadevi ◽  
P. Arulmozhi ◽  
S. Rajalakshmi ◽  
T. Gopalakrishnan ◽  
...  
Keyword(s):  
Liquid Fertilizer ◽  
Capsicum Annum ◽  
Yield And Quality ◽  
Seaweed Liquid Fertilizer

X-ray microanalysis of the cuticle surface of the terrestrial isopod Porcellionides pruinosus

1987 ◽  
Vol 65 (5) ◽  
pp. 1218-1223 ◽  
Author(s):  
Neil F. Hadley ◽  
Gregory M. Hendricks
Keyword(s):  
Acetic Acid ◽  
Elemental Composition ◽  
Marked Reduction ◽  
Common Origin ◽  
Energy Dispersive ◽  
X Ray ◽  
Structural Support ◽  
Terrestrial Isopod

The elemental composition of the cuticle surface and associated microstructures of the isopod Porcellionides pruinosus was examined using energy dispersive X-ray spectroscopy (EDS). The cuticle surface (epicuticle + exocuticle), balls, tricorns, tricorn lips, and epimeral sensilla all contained abundant calcium, with smaller amounts of sulfur, potassium, phosphorus, and chloride also present. Silicon was detected only in the sensilla. The ratios of these lesser elements to calcium were similar in the tricorns, balls, and lips, supporting their common origin. There was a marked reduction in the amount of calcium in the exuviae, and in the amount of calcium and other elements in newly released young when compared with intermoult adult cuticle. Cuticle treated with acetic acid exhibited loss of structural support and no calcium peak in the EDS spectrum, whereas treatment with EDTA had no effect on calcium levels or cuticle morphology.

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