电感耦合等离子体发射光谱法测定蚕蛹、蝎子、海肠中20种元素含量

Determination of 20 Elements in Silkworm Chrysalis,Scorpion and Sea Intestine By ICP-AES

采用电感耦合等离子体发射光谱法（ICP-AES）直接快速测定蚕蛹、蝎子、海肠中20种元素含量，采用微波炉消解样品，试验了微波消解的条件。并对微波消解溶样和常规酸法溶样分别进行了测定和比较。方法的检出限为0．01～0．12mg·L^-1，相对标准偏差为1．4％～4．6％。

Samples of silkworm chrysalis, scorpion and sea intestine were prepared by micro wave-assisted digestion and 20 elements in the prepared sample solution were then determined by ICP-AES. Conditions of digestion were experimentally selected. The results of the presented method were compared with those of the conventional acid degestion. The presented method was simple to operate and has a high sensitivity and low detection limits of 0.01-0.12 mg·L^-1. RSD＇s of the method were in the range of 1.4%-4.6%.