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随着农业生产的进展,作为主要钾素资源的氯化钾,水分含量的多少及其测定方法已经引起各方的关注。本文用3种方法对比测定其水分含量,并经显著性测验进行评估,最后结论是,应用电烘箱120℃±2℃40min的方法,具有速度快,结果稳定,重复性好等优点。与常规法(105℃±2℃2h)相比,结果没有显著性差异,可以取代常规法,具有现实的实用性。
With the progress of agricultural production, potassium chloride as the main potassium resource, the amount of water content and its determination method have drawn the attention of all parties. In this paper, the three methods were compared to determine the moisture content, and the significance test to evaluate the final conclusion is that the application of electric oven 120 ℃ ± 2 ℃ 40min method, with fast, stable, good repeatability and so on. Compared with the conventional method (105 ℃ ± 2 ℃ 2h), the results showed no significant difference, which can replace the conventional method and have practicality.