Method for preparing and processing a sample for intensive...

B - Operations – Transporting – 23 – K

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B23K 26/00 (2006.01) B29B 9/00 (2006.01) C08G 59/00 (2006.01) G01J 3/30 (2006.01) G01N 1/28 (2006.01) H01S 3/00 (2006.01)

Patent

CA 2532282

A method for pelletizing and taking intensive measurements of a raw sample. The raw sample is mixed with several solutions containing epoxies and activators based in carrier solutions or solvents, and ground to a fine powder or gel, and partially dried and conformed to a pellet shape (30). The pellet (30) is then cured such that the epoxy and activator solutions react and form a binding agent capable of maintaining the structural integrity of the pellet (30) during intensive analysis. An intensive analysis instrument, such as LIBS, which includes using a high power laser pulse (20) at a test point (22) to generate a plasma plume (26), the atomic emission (24) of which is collected and analyzed.

L'invention concerne un procédé de pastillage et de mesure intensive d'un échantillon brut. Ce procédé consiste à homogénéiser et à pastiller l'échantillon soumis à une analyse de la composition ou à une analyse intensive. L'échantillon brut est d'abord mélangé à de nombreuses solutions contenant des époxy et des activateurs basés dans des solutions ou des solvants de support, puis il est finement pulvérisé ou gélifié. Le gel est partiellement séché et transformé en pastilles. Les pastilles sont ensuite cuites de sorte que les solutions à base d'époxy et d'activateurs réagissent ensemble et forment un agent de liaison capable de préserver l'intégrité structurale des pastilles de l'échantillon pendant l'analyse intensive. Un instrument d'analyse intensive, utilisé par exemple dans la spectroscopie par claquage optique (LIBS), peut être utilisé pour ablater la surface de la pastille. Le matériau de l'échantillon ainsi réduit en pastilles peut être ablaté et soumis à des mesures intensives précises.

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