微波消解-火焰原子吸收光谱法测定玻璃制品中铅、镉含量  

Determination of Lead and Cadmium in Glassworks by Microwave Digestion - Flame Atomic Absorption Spectroscopy

作　　者：罗欢忠[1] 

机构地区：[1]深圳职业技术学院生物应用工程系,广东深圳518055

出　　处：《广东化工》2008年第12期109-111,共3页Guangdong Chemical Industry

摘　　要：文章应用微波消解-原子吸收光谱法同时测定玻璃制品中铅、镉含量。采用8 mL硝酸+1 mL过氧化氢+2 mL氢氟酸的微波消解体系,消解液无需赶酸,定容后直接用原子吸收光谱仪测定。实验发现,该方法消解效率高、重现性好、可操作性强,准确快速。该方法铅回收率为93.3%;镉回收率为95.5%。方法检出限:铅:0.01 mg/L,镉:0.001 mg/L。In the study, the lead and cadmium in glassworks were quantified simultaneously by flame atomic absorption spectroscopy with microwave digestion. A microwave digestion solution system had been developed with 8 mL nitric acid, 1 mL H2O2 and 2 mL HF. The digestion solution was quantified directly after constant volume process without driving off the acids. According to the results, the method was accurate and rapid and showed great digestion efficiency, good repeatability and maneuverability. The recoveries of lead and cadmium in this method were 93.3 % and 95.5 % separately, and the detection limit values of lead and cadmium were 0.01 mg·L^-1, and 0.001 mg·L^-1 each.

关 键 词：玻璃制品 火焰原子吸收光谱法 铅 镉 

分 类 号：O657.31[理学—分析化学] X832[理学—化学]