火焰原子吸收光谱法测定高含量钾的研究  

Determining the Abundant Potassium in Mixed Fertilzer by Flame Atomic Absorption Spectrometry

作　　者：罗盛旭[1] 梁振益[1] 杨雪蕊[1] 

机构地区：[1]海南大学理工学院,海南海口570228

出　　处：《海南大学学报（自然科学版）》2002年第4期303-305,共3页Natural Science Journal of Hainan University

摘　　要：以钾的次灵敏线为分析谱线,研究了火焰原子吸收光谱法测定高含量钾的方法,确定了最佳测试条件.测定结果表明,其标准曲线的线性范围宽(0～250mg·L-1),干扰少;应用于复混肥料样品的测定,RSD为2.4%～5.0%,加标回收率为95.6%～101.3%,其结果与四苯硼钾重量法一致.该方法准确可靠.The determination of abundant potassium in mixed fertilizer was studied by flame atomic absorption spectrometry that the next smart spectrum line of potassium was to be taken as analytical spectrum line. The determinative parameters are determined. The results proved that the linear zone of concentration for the determination of potassium was enlarged (0-250 mg·L-1), and the accurate degree was high. When the method was applied to the determination of abundant potassium in mixed fertilizer, it showed that its detected RSD was 2.4%-5.0% and recovery ratio 95.6%-101.3%. These results were the same as those by tetraphenylboron potassium weight method. 

关 键 词：火焰原子吸收光谱法 分析线 高含量 钾 

分 类 号：O614.113[理学—无机化学] O65[理学—化学]