摘要
应用悬浮液进样火焰原子吸收光谱法,成功地测定了土壤中的铜。在制备土壤样品悬浮液过程中,对悬浮液的酸量、悬浮剂的浓度及土壤样品粒度的影响等均进行了试验。样品在( 105±2 )℃下烘干4h,研磨过200目筛,加入1 5g/L琼脂悬浮剂10mL和适量硝酸,使样品呈0 2mol/L硝酸悬浮液,充分混合振荡,直接上机测定。通过测定国家土壤标准参考物质,表明该法准确可靠。为进一步验证该法的适用性,又测定了实际土壤样品,且与常规法作了对比,表明两种方法的测定结果一致,而悬浮液的制备更为快速简便。
To detect copper in soil by FAAS-suspension sample introduction technique. During the making suspension of soil, the acid amount, concentration of suspension were tested. Under condition of (105±2)℃, (4 hours,) adding 1.5 g/L agar suspension 10 mL and nitric acid to get 0.2 mol/L acid suspension, then to detect. After test, this method was aureate. Also this method was compared with traditional method, the determination result was same.
出处
《环境监测管理与技术》
北大核心
2005年第2期28-29,共2页
The Administration and Technique of Environmental Monitoring
