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Fernand_Claisse

 

Dr. Fernand Claisse was born in Quebec City in 1923.  He obtained his B.Sc. degree in Physics at the Universite Laval in 1947 and the Ph.D. in Physics and Metallurgy in 1957., also at Laval.  From 1947-58, he worked in XRD and XRF for the Department of Mines of Quebec.  In 1958, he rejoined the Universite Laval as a professor until 1984.  He founded the company Claisse Scientifique Corporation in 1972 where he was director of research until 2002. He was the “lucky” user of the first Norelco spectrometer in Canada in 1948 and prepared his first fusion beads in 1955.  He later developed a quantitative theory of the Heterogeneity Effect, the Claisse-Quintin algorithm, the Fluxer V, and in 1982 published with R. Tertain their well known book Principles of Quantitative XRF Analysis.  Since then he has developed specially shaped Pt crucibles to aid the fusion process, other type of fusion machines, a method for the fusion of sulfides, with G.R. Lachance a simply calculation for the tertiary effect in XRF, and a contamination-free manufacturing process for mini-bead fluxes.  In 1995 Lachance and Claisse published Quantitative XRF Analysis.

Dr. Claisse followed this with the development of a theory of the effect of acidity and atom size on the solubility of oxides in fluxes, the “optimal flux composition”, the first iteration of the Sherman equation, a fusion technique for ferroalloys and metallic powders, and his latest book The Physics and Chemistry of Fusion for XRF Analysis.  For many years he presented annual lectures on fusion techniques at the SUNY summer course and the Denver conference workshops.  Fernand has been teaching with the UWO XRF Course since 1996. He was a great friend, father and teacher and he will be missed by all.

 

borate

About Katanax

Katanax®, a SPEX SamplePrep company, has been creating high quality, electric fusion equipment for over a decade. Our fully automated electric fluxers are designed to prepare glass disks (beads) for XRF, solutions for AA/ICP including peroxide and pyrosulfate fusions. Our fluxers combine exceptional fusion accuracy with all the advantages of electric power, speed, simplicity and a robust design for the experienced or novice user.

 

We are pleased to announce the release of a revised and updated scientific reference book entitled “Physics and Chemistry of Borate Fusion”.  The book is a complete resource for fusion techniques and methods. Click here to learn more.

 

  • X-300 X-Fluxer
  • X-600 X-Fluxer
  • K1 & K2 Prime
  • Fluxes
  • Crucibles/Molds
  • Application Notes

X-300 X-Fluxer®

Built with the most demanding lab in mind, the Katanax X-300 Fluxer is the next generation in electric fusion offering new enhanced features for unparalleled results. It is used to prepare glass disks (beads) for XRF analysis, solutions for ICP/AA analysis and peroxide or pyrosulfate fusions. This unit is available as a one, two or three position fluxer achieving a throughput of up to 15 samples per hour.

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Katanax® K1 Prime

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X-600 Fusion Fluxer

Built with the most demanding lab in mind, the Katanax X-600 Fluxer is the next generation in electric fusion offering new enhanced features for unparalleled results. It is used to prepare glass disks (beads) for XRF analysis and solutions for ICP/AA analysis or for preparing peroxide and pyrosulfate fusions. This unit allows you to run up to 6 samples at the same time achieving a throughput of up to 30 samples per hour.

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Katanax® X-600 X-Fluxer™

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K1 Prime

This single position fusion fluxer can be used for preparing glass disks (beads) for XRF. An optional solution kit prepares solutions for ICP and AA. This unit allows you to achieve a throughput of up to 5-7 samples per hour.
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K2 Prime

The Katanax K2 Prime is a six position electric fusion fluxer for preparing glass discs (beads) for XRF. An optional Solutions Kit prepares solutions for ICP and AA. It processes up to 6 samples simultaneously with a throughput of 24 to 30 samples per hour.
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Katanax® K1 & K2 Prime

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Katanax® Fluxes

Fluxes

Katanax offer a full range of high-quality fusion fluxes in addition to its product line. We can now provide our customers with lithium borate fluxes that present the following features:

  • Outstanding Purity
  • Micro-bead form
  • Pre-fused
  • Optional non-wetting agent added
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Katanax® Crucibles & Molds

Crucibles & Molds

We supply the platinumware you need to process your samples. Our platinum crucibles and molds are available as standard or reinforced varieties. Various mold sizes are available including 30mm, 32mm, 35mm and 40mm.

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Sample Preparation and Analysis Techniques for Borate Fusion

Tim Osborn-Jones and Richard Bostwick – SPEX SamplePrep and Ian Croudace – GAU-Radioanalytical Laboratories.

Elemental Analysis is critical at all stages of cement manufacturing, particularly when monitoring raw materials, such as limestone and chalk for a desirable balance of Ca, Mg and Si as well as unwanted elements like Fe, Na and S that can rapidly degrade concrete.  

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Quantitative Analysis of FeMo Alloys using Lithium Tetraborate Fusion Technique by X-Ray Fluorescence Spectrometry

SM Jung, HD Mun - steel research international, 2012 - Wiley Online Library

Essentially, the fusion procedure consists of heating a mixtureof sample and flux at high temperatures (1273 C for lithium tetraborate) employingan automated fusion equipment (Katanax K2).

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Characterization of heavy minerals in the Athabasca oil sands

HAW Kaminsky, TH Etsell, DG Ivey, O Omotoso - Minerals Engineering, 2008 - Elsevier

Ashed solids were prepared into fused beads for X-ray fluorescence (XRF) analysis using a Katanax™ fuser with a platinum crucible and pan. The fused beads were analyzed with a Bruker S4 Explorer XRF equipped with a wavelength dispersive spectrometer (WDS).

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Characterization of heavy minerals in the Athabasca oil sands

Fly ash is a waste product from the combustion of coal and is comprised of mineral particles that rise with the flue gases. Recovered fly ash is used as a component in certain cement mixes and improves the durability and strength of concrete.

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WHAT IS FUSION?

Fusion is a technique used to prepare inorganic samples, with a view to analyze them by x-ray fluorescence (XRF), inductively coupled plasma (ICP), atomic absorption (AA) or any traditional wet chemistry method. Typical samples include: cements, ores, slag, sediments, soils, rocks, ceramics, pigments, glasses and even metals. A fusion can produce either a small, homogenous glass disk (or “bead”) for XRF, or an acid solution for other analytical methods.

 

THE KATANAX DIFFERENCE

Our fluxers combine exceptional fusion accuracy with all the advantages of electric power combined with speed, simplicity and a robust design for the most demanding labs. Our technology has many advantages over other sample preparation methods.

 

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FREE Fusion method development

If your laboratory is looking into Katanax electric fluxers, and would like to know if your particular sample can be prepared by fusion, we will gladly test your sample for free. Simply fill out this form and send us your samples. We will return your samples as prepared as beads, along with the complete details on how we did it.