建立了石墨炉原子吸收分光光度法测定净水器自制水中重金属含量的方法,为水中重金属的测定提供可靠的途径。较系统地研究了基体改进剂磷酸二氢铵、硝酸镍、硝酸镁在测定净水器自制水中铬、镉、硒、镍元素的运用,并讨论了基体改进剂消除干扰的作用机理,同时确定了最佳的仪器测试条件。本方法用于测定净水器中的痕量元素,结果令人满意。
This study had established the method of heavy metal content in water of water purifier by graphite furnace atomic absorption spectrophotometry.It provided a reliable way for the determination of heavy metals in water.The use of ammonium dihydrogen phosphate,nickel nitrate,magnesium nitrate as matrix modifier in determination of chromium,cadmium,selenium,nickel in homemade water of water purifier has been systematically studied.The mechanism of their eliminating effects was discussed.Meanwhile the best instrument test conditions were determined.Appling this method to analyze the elements in homemade water,the results were satisfactory.