土壤中重金属元素的双脉冲激光诱导击穿光谱研究OA北大核心CSCDCSTPCD
Analyses of heavy metals by soil using dual-pulsed laser induced breakdown spectroscopy∗
基于正交预烧蚀双脉冲激光诱导击穿光谱(DP-LIBS)技术对长春市四个地点地表土壤样品中的重金属元素进行了研究,根据光谱线强度定性分析了重金属元素Mn, Cr, Cu, Pb含量.实验结果发现,在532和1064 nm激光脉冲能量分别为70和100 mJ的条件下光谱增强随延时的变化出现双峰结构.脉冲间延时20µs时, Mn I 406.4 nm光谱增强幅度达到2.75倍,延时为30µs时出现第二个尖峰,增强幅度为2.4倍.最后对正交预烧蚀DP…查看全部>>
The heavy metal elements contained in soil samples which are collected from Changchun train station, CUST campus, South Lake and Jingyue Lake park are separately analyzed by using the orthogonal dual laser pulses induced breakdown spectroscopy (DP-LIBS). The elements Mn, Cr, Cu and Pb are qualitatively analyzed according to the LIBS spectral intensity. It is shown that the intensity of the spectrum is greatly enhanced by using the DP-LIBS and the enhanceme…查看全部>>
杜闯;高勋;邵妍;宋晓伟;赵振明;郝作强;林景全
长春理工大学理学院，长春 130022长春理工大学理学院，长春 130022长春理工大学理学院，长春 130022长春理工大学理学院，长春 130022长春理工大学理学院，长春 130022长春理工大学理学院，长春 130022长春理工大学理学院，长春 130022
预烧蚀双脉冲激光诱导击穿光谱光谱增强土壤污染
pre-ablationdual laser pulses induced breakdown spectroscopyenhancementsoils pollution
《物理学报》 2013 (4)
非期望中子对快中子图像的影响及其校正
349-354,6
国家自然科学基金(批准号:11005095)资助的课题
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