Under the situation of phosphonic acid, the extraction of formaldehyde in dried bean milk cream was carried out by distilling and the formaldehyde was determined by acetyl acetone spectrophotograhy.
英
美
- 磷酸酸化条件下对腐竹样品进行蒸馏,采用乙酰丙酮分光光度法测定甲醛残留量。