摘要
植物样品经混酸（ＨＮＯ３─ＨＣ１Ｏ４）消化，以ＤＢＣ─ＣＰＡ显色，采用双波长分光光度法直接测定其稀土总量，钙、硅对此法均无干挠，结果令人满意。平均回收率１０１．９％，精密度测定值的变异系数为５～６％。
In the present study,plant samples digested by mixcd HNO3 and HC1O4 was directlydetermined by double-wave spectral photometry and the test was unaffected by the presence of Caand Si.The results obtained showed that the average recovery rate was 101.9%,and variationcoefficient of precision determination value was 5～6%.
出处
《安徽农业大学学报》
CAS
CSCD
1995年第2期129-132,共4页
Journal of Anhui Agricultural University
