超声辅助ICP-OES法快速测定PM_(2.5)中的重金属  

Rapid Determination of Heavy Metals in PM_(2.5) by Ultrasonic-assisted ICP-OES

作　　者：方明月 张璐 施琴芝 金兰 FANG Ming-yue;ZHANG Lu;SHI Qin-zhi;JIN Lan(Ningbo Tianyi Green Ecological Technology Co.,Ltd.,Zhejiang Ningbo 315000;Zhejiang Xinjie Testing Technology Co.,Ltd.,Zhejiang Ningbo 315200;Zhejiang Yice Environmental Technology Co.,Ltd.,Zhejiang Ningbo 315100,China)

机构地区：[1]宁波天一绿色生态科技有限公司,浙江宁波315000 [2]浙江信捷检测技术有限公司,浙江宁波315200 [3]浙江易测环境科技有限公司,浙江宁波315100

出　　处：《广州化工》2024年第14期63-66,共4页GuangZhou Chemical Industry

摘　　要：针对PM_(2.5)滤膜样品现有的消解方法中存在的不足,就采集了实际样品的过氯乙烯滤膜,对其消解条件(消解用硝酸-盐酸浓度比例选择、样品超声浸提时间、水浴加热时间)进行了优化研究,选择了铁、铜、铝、锌、铅等金属元素进行了详细探讨;采用超声辅助水浴消解的前处理方法,分析了不同类型空白滤膜中重金属的含量,并将该方法与电感耦合等离子体原子发射光谱法(ICP-OES)相结合,以期为改进大气颗粒物中重金属监测分析方法提供参考。Aiming at the deficiencies in the existing digestion methods for PM_(2.5) filter samples,polyvinyl chloride(PVC)filter samples from actual sampling were collected.The digestion conditions(the optimal ratio of nitric acid to hydrochloric acid,ultrasonic extraction time of samples,and water bath heating time)were optimized.Metals such as iron,copper,aluminum,zinc and lead were discussed in detail.The pretreatment method of ultrasonic assisted water bath digestion was used to analyze the heavy metal content in different types of blank filters.This method was combined with inductively coupled plasma atomic emission spectrometry(ICP-OES)to provide a reference for improving the monitoring and analysis methods of heavy metals in atmospheric particles.

关 键 词：PM_(2.5) 滤膜 优化研究 超声辅助水浴消解 ICP-OES 

分 类 号：X831[环境科学与工程—环境工程]