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工业循环冷却水所用水稳剂多为磷系,有机磷是衡量产品质量的重要指标之一。要准确测定有机磷必须先准确测定总无机磷。本文就公司使用的QD、H系列水稳剂中总无机磷测定方法进行试验,以喹钼啉酮重量法测定结果作真值,与钼酸铵分光光度法测定结果进行比较,两方法测定结果不存在系统误差。钼酸铵分光光度法可准确测定水稳剂总无机磷含量。
Industrial circulating cooling water used mostly water-based phosphorus system, organic phosphorus is an important indicator of product quality. To accurately determine the organic phosphorus must first accurately determine the total inorganic phosphorus. In this paper, the company used QD, H series of water-based inorganic total phosphorus determination method for testing to Quimazolone gravimetric method for the determination of the true value, and ammonium molybdate spectrophotometric determination of the results were compared, the results of the two methods There is no systematic error. Ammonium molybdate spectrophotometry can accurately determine the total inorganic phosphorus content of water-stable agent.