The method for the determination of nickel in stainless steel by rapid spectrophotometric with diacetyldioxime is set up.

建立测钢中镍的丁二酮肟快速光度法。

The soy sauce containing urea will become red when heated together with diacetyldioxime and phosphoric acid.

掺有尿素的酱油在与丁二酮肟、磷酸混,热煮沸会呈现红色。