How many XRF readings are typically taken for each selected component?

For most situations involving X-ray fluorescence (XRF) analysis, typically one reading is sufficient for each selected component, unless there are different substrates involved. This approach is based on the assumption that a single measurement can provide a reliable analysis of the elemental composition of a specific material under consistent conditions.

When different substrates are present, however, the recommendation may shift to ensure that the readings accurately reflect the component's characteristics across those varied materials. The emphasis is on obtaining representative results without unnecessary redundancy, which is why taking one XRF reading is often adequate unless substrate variations necessitate additional readings for accuracy and reliability.