摘要
采用微波消解技术,电感耦合等离子体发射光谱法（ICP-OES）测定塑料中钙。实验中消解体系为6.0 m L浓硝酸和2.0 m L 30%过氧化氢,实验方法的检出限为2.85 mg/kg,精密度RSD〈5%,加标回收率为92.1%-108.9%。该方法样品用量少,溶样周期短,测试速度快,适用于塑料中钙含量的快速测定。
Determination of calcium in plastics was studied by microwave digestion with ICP-AES. In the experiment 6.0 m L nitric acid and 2.0 m L 30 % hydrogenperoxide for digesting the plastics. The method limited is 2.85 mg/kg, and the recoveries rang from 92.1 % to 108.9 %, RSDs are less than 5 %.The method is convenient and accurate, which would be used to determination of calcium in plastics.
出处
《广东化工》
CAS
2015年第19期148-149,共2页
Guangdong Chemical Industry
