二苯基碳酰二肼光度法快速测定废水中的六价铬

摘要

The Cr(VI) in waste water is determined with spectrophotometer using a solid colour developing agent. The solid colour developing agent is prepared with diphenylcarbazide as chromogenic agent, sodium fluoride as dispersant for diphenylcarbazide and sulfamic acid to control acidity. This method has high sensitivity and can dispel the interference of ions in waste water.%采用二苯基碳酰二肼为指示剂,氟化钠为分散剂,氨基磺酸控制酸度配制固体显色剂,用于分光光度法测定废水中的六价铬.使用固体显色剂,灵敏度高并可掩蔽铁离子的干扰.