Lithium metaborate flux for XRF sample preparation
30/04/2018 · Product News
Lithium metaborate (LiBO₂) is used in borate fusion for X-ray fluorescence (XRF) analysis and in other sample-preparation workflows. It may be used on its own or combined with lithium tetraborate (Li₂B₄O₇); the appropriate composition depends on the sample and the analytical method.
Choosing a lithium borate flux
Flux composition influences how a sample reacts during fusion. XRF Scientific describes lithium metaborate 100% (LM-100) for wet-chemistry applications and lists mixtures of lithium tetraborate and lithium metaborate for different sample types. Its 12:22 mixture contains 35.3% lithium tetraborate and 64.7% lithium metaborate and is described for alumino-silicates and more acidic oxides. A 50:50 mixture is described for general use with neutral samples, including alumina.
Flux may be supplied in different physical forms, and some formulations include additives such as release agents. Confirm the current formulation and product form against the sample, preparation method and instrument workflow before selecting a material.
Options for XRF and sample preparation
XRF Scientific lists lithium metaborate, lithium tetraborate and pre-mixed borate fluxes, with standard and custom formulations. The manufacturer’s fusion flux guide describes available flux types, additives and application examples. Use the manufacturer’s technical information and safety data sheet for handling, storage and method-specific instructions.
CSI Labshop can check which XRF Scientific flux options may fit your requirements and confirm current availability. Email us with your sample type and preparation requirements to request a quotation. Product availability and suitability will be confirmed when we respond.
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