A method was established for the determination of soil available B by inductively coupled plasma mass spectrometry (ICP-MS). Compared to the traditional method for B analysis, the recommended method does not need filtration, so it escapes the contamination. The method not only proved simple and rapid, but also showed satisfying precision and accuracy. The detection limit of this method is 0.009 ng x g(-1). The relative standard deviation is 2.66%, and the recovery is 93.0%-102.0%.
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