Metal alloy XRF spectrometry utilizing new sample preparation technology
A technology of metal alloys and fluorescence spectroscopy, which is applied in the preparation of test samples, material analysis using wave/particle radiation, and measuring devices. It can solve the problem of high melting point and achieve the effect of reducing matrix effect and high accuracy.
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[0018] The metal alloy X-ray fluorescence spectrum detection method using the new sample preparation technology described in the present invention, hereinafter by selecting the neodymium-iron series rare earth permanent magnet alloy (the main components are six elements of La, Ce, Pr, Nd, Fe, Co) As the best embodiment of the present invention, the detailed description is as follows:
[0019] 1. Accurately weigh about 1.0 g (accurate to 0.1 mg) sample into a 50 mL glass beaker, add (1+1) HNO 3 20 mL, cover with a watch glass, heat and boil on an electric stove until the sample is completely dissolved, remove it, cool to room temperature, wash the watch glass with a small amount of distilled water, and combine the cleaning solution with the sample solution.
[0020] 2. Add (1+1) ammonia water dropwise to the above sample solution, and stir while adding, until the pH value of the sample solution is 8. At this time, each metal element was precipitated in the form of hydroxide, ...
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