【摘要】 以镍（Ⅱ）－丁二酮肟－石蜡体系为对象，提出一种新的固相（蜡相）分光光度法，并研究了方法的最佳实验条件；镍量在０～３０μｇ／５０ｍＬ范围内服从比尔定律。本法将显色、富集、分离、测定结合起来，选择性好、灵敏度高。应用于工业废水中镍的测定，结果满意。更多还原

【Abstract】 This article studied the spectrophotometry of nickel (Ⅱ)dimethylglyoxime in paraffin phase and the optimum experiment conditions of the coloration system.Beer′s law is obeyed in the range of 0 to 30μg/50mL of Ni.The method is a combined approach of coloration,concentration,separation and determination.Its selectivity is good,and the sensitivity is fourteen times higher than that by chloroform phase spectrophotometry.The method has been applied to the determination of nickel in waste water samples with satisfactory results.更多还原