𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Peculiarities of making gel-like specimens for x-ray fluorescence analysis

✍ Scribed by L. P. Eksperiandova; A. B. Blank; Y. N. Makarovskaya

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
69 KB
Volume
28
Category
Article
ISSN
0049-8246

No coin nor oath required. For personal study only.

✦ Synopsis

A method is proposed for making quasi-solid specimens for x-ray Ñuorescence analysis by the introduction of a thickening agent (gelatin or agar, starch, water-soluble organosilicon polymer) into a liquid aqueous concentrate obtained by crystallization concentration. An organogel is obtained based on an organic extract and a surfaceactive substance. Such specimens may be used in x-ray spectrometers for solid sample analyses.

📜 SIMILAR VOLUMES

Specimen preparation in x-ray fluorescen
Specimen preparation in x-ray fluorescence analysis of materials and natural objects
✍ A. B. Blank; L. P. Eksperiandova 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 353 KB 👁 1 views

Specimen preparation is the source of the largest errors in x-ray Ñuorescence analysis. This paper reviews recent publications which deal with various methods of specimen preparation for the analysis of powders, compacted samples and fused specimens, non-destructive analysis of solid samples, direct

SAX, software for the analysis of x-ray
SAX, software for the analysis of x-ray fluorescence spectra
✍ E. L. Torres; M. V. Fuentes; E. D. Greaves 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 254 KB 👁 2 views

A program for chemical analysis by energy-dispersive x-ray spectrometry is described. Fluorescent multiplets are Ðtted to a high degree of accuracy by a method using an empirical energy-dependent peak-shape function derived from the spectrometer response to well resolved standard sample spectra. Ele

Simple Methods for Quantitative X-Ray Fl
Simple Methods for Quantitative X-Ray Fluorescence Analysis of Ancient Metal Objects of Archaeological Interest
✍ M. Milazzo; C. Cicardi 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 276 KB 👁 2 views

In quantitative EDXRF analysis of ancient metallic objects two main difficulties arise : i) how to Ðnd out the correction factors for the irregular shape or relief e †ects and ii) how to measure the true composition of the bulk metal under the surface patina. In the case of coins, taken as a typical

Radioisotope photon-excited energy dispe
Radioisotope photon-excited energy dispersive x-ray fluorescence technique for the analysis of organic matrices
✍ K. H. Angeyo; J. P. Patel; J. M. Mangala; D. G. S. Narayana 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 409 KB 👁 1 views

A semi-empirical method for improved trace multi-element determination in organic matrices based on 109Cd radioisotope energy-dispersive x-ray Ñuorescence (EDXRF) spectrometry is presented. It involves optimizing the geometry and electronics, interpretation and transformation of the analytical perfo

Systematic procedure for the preparation
Systematic procedure for the preparation of sets of calibration standards for x-ray fluorescence analysis of ceramic materials
✍ E. Ochandio-Cardo; S. Sagrado; G. Ramis-Ramos 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 100 KB 👁 2 views

A systematic procedure for the preparation of optimized sets of calibration solid standards for the x-ray Ñuorescence analysis of ceramic materials is described. The matrix of the contents of the N analytes in the n standards (n P N) is calculated from an n  N experimental design matrix, and from t

Comparison between proton-induced x-ray
Comparison between proton-induced x-ray emission (PIXE) and total reflection x-ray fluorescence (TXRF) spectrometry for the elemental analysis of human amniotic fluid
✍ J. A. Liendo; A. C. González; C. Castelli; J. Gómez; J. Jiménez; L. Marcó; L. Sa 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 124 KB 👁 1 views

A comparison between use of proton-induced x-ray emission (PIXE) and total reÑection x-ray Ñuorescence (TXRF) techniques in relation to the elemental analysis of amniotic Ñuid (AF) was carried out by measuring the concentrations of Cl, K, Ca, Fe, Cu, Zn and Br. For 10 AF samples analyzed, the agreem