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采用钒钼酸铵分光光度法快速测定阻燃剂磷酸双酚A四苯酯(BDP)中间体中三氯氧磷含量,考察了测定波长、样品溶解时间及冷却时间、冷却温度、显色时间等因素对测定结果的影响;本法具有样品溶解快速、完全,溶液显色稳定的特点,并具有较高的精密度和准确度。
The phosphorus oxychloride content in flame retardant phosphoric acid bisphenol A tetraphenyl ester (BDP) was rapidly determined by ammonium vanadate molybdate spectrophotometry. The determination of wavelength, sample dissolution time and cooling time, cooling temperature, color development time And other factors on the determination of the results; This method has a sample dissolved quickly, completely, the solution color stability characteristics, and has high precision and accuracy.