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Sample fusion involves dosing a powdered or granulated mineral sample with a careful ratio of lithium borate and any requisite additives, before melting the mixture in a high-temperature fusion heater. The heating chamber of a fusion fluxer regularly reaches temperatures of up to 1250°C (2282°F), necessitating precision labware with extreme thermodynamic stability and zero cross-reactivity with samples.

Platinum crucibles are routinely used for high-temperature sample fusion, owing to the material’s extremely high melting point and low chemical reactivity even at elevated temperatures. This enables analysts to prepare high-purity samples of near-perfect homogenous quality for accurate x-ray fluorescence (XRF) or inductively-coupled plasma (ICP) analysis.

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XRF Scientific has been developing precision sample preparation equipment for x-ray fluorescence (XRF) and inductively-coupled plasma (ICP) analysis since 1972. Our products and methodologies have supported experts in an array of industrial sectors, providing accurate composition and purity measurements of sample materials in the mining, construction, petrochemical sectors and more. This success has enabled us to broaden our market expertise and provide an expansive platinum product range for applications beyond sample analysis.

Our semi-finished platinum products have found extensive application in the growing field of thin film deposition. Evaporation and chemical vapor deposition (CVD) are among the most common thin film coating techniques. They are used to fabricate unique mi...

Crushing equipment is central to a wide scope of sample preparation tasks, impacting all manner of workflows from the lab bench to the production line. Selecting the right crushing equipment for the job is subsequently critical. At XRF Scientific, we supply a wide range of laboratory crushers primarily used for elemental analysis. In this article, we will outline some of our crushing equipment to help you choose the best tool for the job.

The Basics of XRF Crushing Equipment

To accurately assess the x-ray fluorescent (XRF) properties of a dry, organic sample through XRF spectrometry, the sample must first be prepared with a fusion flux of either lithium metaborate (LiBO₂), lithium tetraborate (Li₂B₄O₇), or a mixt...