微波消解原子吸收光谱法检测车间空气中的氧化锌  

Detection of zinc oxide in the air of workplace by microwave digestion atomic absorption spectrometry

作　　者：李世杰[1] 郑雯[1] 付韬[1] 

机构地区：[1]漯河市疾病预防控制中心,河南漯河462000

出　　处：《河南预防医学杂志》2016年第7期516-517,523,共3页Henan Journal of Preventive Medicine

摘　　要：目的建立微波消解原子吸收光谱法测定车间空气中氧化锌浓度的方法。方法采用微波消解前处理微孔滤膜,在最佳仪器条件下用原子吸收光谱法测定氧化锌含量。结果锌浓度在0~1.00 mg/L范围内时线性关系良好,r=0.998 9,相对标准偏差1.9%~2.6%,加标回收率为95.0%,最低检出限为0.025 mg/L,最低检出浓度为0.008 mg/m^3。结论该方法精密度和准确度可满足试验要求,适用于车间空气中氧化锌含量测定。Objective To establish the method of detecting the content of zinc oxide in the workshop air by microwave digestion-atomic absorption spectrometry. Methods Microfiltration membrane was digested by microwave digestion, detecting the content of zinc oxide by atomic absorption spectroscopy. Results Between 0 mg/L-10 mg/L , content of zinc and absorbance had a good linear relationship, r=0.998 9, RSD was 1.9 %-2.6 % ,the recovery rate was 95.0 %, detection limit was 0.025 mg/L, minimum detectable concentration of zinc oxide in workshop air was 0.008 mg/m3. Conclusions The precision and accuracy meet requirements, is suitable for detecting the content of zinc oxide in the workshop air.

关 键 词：微波消解 原子吸收光谱法 车间空气 氧化锌 

分 类 号：R155.3[医药卫生—营养与食品卫生学]