There are some limitations to the correction of the matrix effect with Rhodes equation in XRF.

在能量色散x荧光谱分析中，使用罗兹方程法校正基体效应，存在一定的局限性。

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Are the XRF calibration records current and are appropriate XRF standards used to verify calibration?

目前是否有XRF校准记录于接近XRF标准的方法用于确认精确度？

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Correction of matrix effect is a key part of XRF and, to a great extent, determines the accuracy of surveying data.

基体效应校正是X射线荧先分析方法中关键的一环，在很大程度上决定了测量数据的准确度。

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Birmingham Museum and Art Gallery conservators are employing a technique called X-ray Fluorescence (XRF).

BBC: Staffordshire Hoard X-rayed by Birmingham museum

Using the XRF technique, curators have already discovered that some of the hoard artefacts contain 94% gold (about 22 carat).

BBC: Staffordshire Hoard X-rayed by Birmingham museum