通过实验比较磷钼酸喹啉重量法和磷钒钼黄比色法对8个不同类型水溶肥料样品磷含量的测定过程、测定结果及准确性等。结果表明:两种测定方法所测得的结果均符合质控要求,且相关性高,相关系数为0.999。相比较而言,比色法具有准确性高、操作简单、耗时短等优点,可以作为企业内部的快速检测方法。 Through the experiment, we compared the determination process, the determination result and the accuracy of phosphorous content of eight different types of water-soluble fertilizers by quinoline phosphomolybdate gravimetry and phosphorus vanadium molybdenum yellow colorimetry. The results show that the results obtained by the two methods are in line with the quality control requirements, and the correlation is high, the correlation coefficient is 0.999. In contrast, the colorimetric method has the advantages of high accuracy, simple operation, short time-consuming and the like, and can be used as an in-house rapid testing method.