摘要
通过试验研究,建立了硝酸-氢氟酸-高氯酸消解、石墨炉原子吸收分光光度法测定生活垃圾堆肥产品中的镉。该方法的检出限为0.01mg/kg(按称取0.5g试样消解定容至50mL计算),用于不同地域堆肥样品中镉的测定,其相对标准偏差(RSD)在5.78%～11.9%之间,加标回收率介于88.0%～106.0%之间,可作为一种较理想的检验堆肥产品质量的方法。
On the basis of experiment, a determination method of cadmium in composting products of household waste was developed by graphite furnace atomic absorption spectrophotometry （GF-AAS） and sample digestion with HNO3-HF-HClO4, The method was applied to the determination of Cadmium in composting products of various regions, with relative standard deviation between 5.78%-11.9% and recovery rate of 88,0%-106,0%. The determination limit was 0,01mg,kg as calculated by weighing 0,5g sample, digesting and diluting with water to 50mL volume, The method is reliable to examine the quality of composting products.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2008年第6期98-100,共3页
Environmental Science & Technology
基金
国家环保总局国家标准编制计划项目<生活垃圾堆肥污染物控制标准及测量方法>(2003-508)
关键词
石墨炉原子吸收分光光度法
镉
生活垃圾
堆肥产品
graphite furnace atomic absorption spectrophotometry （GF-AAS）
cadmium
domestic waste
composting product
