摘要
用NH4NO3-Pd(NO3)联合基体改进剂,石墨炉法直接测海水中痕量镉。通过不同条件的实验,确定了最佳的分析条件;并通过对实际样品平行性和加标回收率的测定,验证了方法的精密度和准确度。建立了空白实验,在0.19～5.0μg/L线性范围内,镉的最低检出限为0.19μg/L。实验结果表明,该方法快速方便,提高了分析效率,准确度高,精密度好。
Determination of trace lead in seawater sample by furnace atomic absorption spectroscopy with NH4NO3Pd(NO3)2 matrixmodifier combine The optimal analytical condition was ascertained through different condition experiments, analytical precision and accuracy were also validated by means of analysis realistic samples parallelism and recovery rate Set up blank test ,under the optimum conditions selected the detection limit is 019μg/L Dynamic linear is 019～50μg/L The experimental results showed that this method was easy to operate, analytical efficiency was promoted, analytical precision and accuracy were good as well
出处
《中国环境监测》
CAS
CSCD
北大核心
2002年第6期46-47,共2页
Environmental Monitoring in China
