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

建立测定不锈钢中镍的丁二酮光度法。

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

掺有尿素的酱丁二酮、磷酸混合后,加热煮沸会呈现红色。