Laser-inducedbreakdownspectroscopy相关论文
Time-resolved spectroscopy of collinear femtosecond and nanosecond dual-pulse laser-induced Cu plasm
In this paper,we investigate the time-resolved spectroscopy of collinear femtosecond(fs)and nanosecond(ns)dual-pulse(DP)......
Determination of Insoluble Aluminum Content in Steels by Laser-induced Breakdown Spectroscopy Method
The insoluble aluminum content in steels has an important influence on the quality of the steel.In this paper,laser-indu......
The work focused on thymus tissue differentiation of different rat models about postpartum depression by monitoring the ......
激光诱导击穿光谱(LIBS)是一种快速、实时的元素成分分析技术。为了提高LIBS的灵敏度,人们已经提出多种方法来提高LIBS的光谱强度......
激光诱导击穿光谱(LIBS)结合传统的压片制样方法用于检测大米中镉(Cd)含量的灵敏度较低,为此提出使用薄膜制样的方法来提高LIBS检测大米......
氩气和氮气被广泛用作增材制造中的保护气体, 但局部高温及材料中的氧逸出等因素会导致熔融区附近的氧含量与保护气体中的氧含量存......
在提取激光诱导击穿光谱(LIBS)全部特征峰的基础上,利用支持向量机建立了有效的茶叶分类模型。采集了15种茶叶样品的有效LIBS光谱......
采用激光诱导击穿光谱技术对炉渣中的Ca、Mg含量进行了定量分析。由于炉渣成分复杂, 建立的一元回归关系式往往得不到理想的结果,......
采用激光诱导击穿光谱(LIBS)技术对复合肥样品中氮(N)、磷(P)和钾(K)等营养元素进行定量分析。实验中一共选取20个样品,由于样品量......
搭建了一套集成微区成像的激光诱导击穿光谱系统,运用描述性统计分析方法分析了激光器的能量稳定性、光谱仪的噪声水平,重点分析、......
利用Nd∶YAG脉冲激光器(波长为1064 nm)作为激发光源,以高分辨率、宽光谱段的中阶梯光栅光谱仪和增强型电荷耦合器件为谱线分离与探......
激光诱导击穿光谱(LIBS)技术因其在线、原位、多元素同时测量等优点,在物质成分检测上得到广泛应用。但是,LIBS技术常受到自吸收及......
基于激光诱导击穿光谱(LIBS)技术对钢液中的Cr,Si和Mn 3种元素成分进行浓度在线监视。实验采用中频感应炉熔炼钢材,并在熔炼过程中添......
采用单靶磁控溅射方法在不同溅射时间下制备了铜铟镓硒薄膜,并且利用激光诱导击穿光谱技术实现对铜铟镓硒薄膜中元素含量比的快速......
燃煤热值是煤质分析的一个重要指标,采用纳秒和飞秒以及双脉冲激光诱导击穿光谱技术对18个含有不同热值的标准煤样进行热值定量分......
由于自由定标法-激光诱导击穿光谱(CF-LIBS)需要元素归一化,多元素同时参与计算,土壤中微量元素谱线较弱,计算Saha-Boltzmann斜线困难......
激光诱导击穿光谱(LIBS)信号的稳定性受激发光在目标表面聚焦准确性的影响很大。在海底热液喷口烟囱体探测等应用现场,难以通过对......
人参作为东北地区重要的经济作物, 是著名的“东北三宝”之一。 随着社会经济的快速发展, 人们对于养生保健产品的重视度和需求量......
载玻片是生物和医学领域中放置样本的透明玻璃。为了更好地服务于生产过程中对载玻片组分的实时检测,采用1064 nm激光烧蚀载玻片,......
利用中心波长为1064nm的Nd∶YAG脉冲激光器作为激发光源,以高分辨率、宽光谱段的中阶梯光栅光谱仪和增强型电荷耦合器件为谱线分离......
利用激光诱导击穿光谱(LIBS)技术与基于遗传算法优化的误差反向传播(GA-BP)神经网络对常见的9种塑料进行分类识别。通过激光诱导击......
激光诱导击穿光谱(LIBS)技术已成功地对固体样品和气相样品中的重金属痕量元素进行了定性或半定量分析。为对液体基质的重金属元素......
为研究半球形空腔对等离子体辐射的增强作用,利用不同直径的半球形空腔对激光烧蚀合金钢产生的等离子体进行约束,结果发现,半球形......
在常温常压下,采用手持式激光诱导击穿光谱仪(LIBS)对铝合金中的镁、钛元素进行定量分析,以验证其稳定性及可靠性。手持式LIBS内置......
提出了将螯合树脂作为一种新型固相基底来富集水溶液中的Cu元素和Mn元素,之后进行激光诱导击穿光谱检测的方法。选取Cu I 324.75 n......
将激光诱导击穿光谱技术(LIBS)应用于测量飞灰中C、Si、Al、Mg和Fe等主要元素,飞灰样品与粘结剂KBr混合压制成压片,对比分析不同环境......
为将LIBS技术应用于核材料的监测分析,采用波长为1064 nm的脉冲激光诱导产生等离子体光谱,利用多通道光栅光谱仪完成光信号的探测,......
以具有复杂颗粒特征的商业食盐为模型样品,通过实验研究了激光诱导击穿光谱(LIBS)技术检测复杂颗粒状物质中微量元素光谱的稳定性。通......
针对工业废水重金属原位在线监测的需求,提出了基于激光诱导击穿光谱(LIBS)技术的水体重金属连续在线检测方法。采用石墨基底蒸干......
Periphery excitation of laser-induced CN fluorescence in plasma using laser-induced breakdown spectr
Carbon is hard to be sensitively detected in laser-induced breakdown spectroscopy (LIBS). The optical emission can be si......
激光诱导击穿光谱(LIBS)中通常含有丰富的元素特征谱峰,谱峰的准确识别是利用LIBS技术进行元素定性、定量分析的前提和基础。针对传......
激光诱导击穿光谱(LIBS)技术是一种基于原子发射光谱和等离子体发射光谱的物质成分分析技术。利用LIBS技术对水中的Pb污染进行检测......
为了提高光诱导击穿光谱(LIBS)技术定量分析的精准度,用LIBS技术对不同合金钢中的Mn元素进行定量分析,结合支持向量回归(SVR)建立......
为了深入研究激光诱导等离子体的物理特性,提高激光诱导击穿光谱(LIBS)技术的测量精度和可靠性,对激光诱导等离子体的时间演化过程进......
激光诱导击穿光谱技术(LIBS)具有无需制备样品、多元素同时测量和快速检测等优点,在物质检测领域得到了广泛应用,选择合适的实验装......
选用4种不同形态碳元素样品(石墨、碳酸钙、无水对氨基苯磺酸和煤)进行激光诱导击穿光谱(LIBS)实验。通过改变激发环境氛围(大气、氮......
利用Nd∶YAG纳秒激光脉冲烧蚀硅产生等离子体光谱,通过改变聚焦透镜到样品表面的距离,研究硅等离子体光谱中原子谱线强度和离子谱......
A hybrid filter-wrapper variable selection method for improving performance of multivariate calibrat
Variable selection is an important step in multivariate calibration of laser-induced breakdown spectroscopy,as it ca......
Identification of Tea Leaves by Laser-induced Breakdown Spectroscopy Combined with Discriminant Anal
Laser-induced breakdown spectroscopy(LIBS)combined with discriminant analysis method was applied to detect and ident......
建立了基于自适应核的激光诱导击穿光谱支持向量机回归定量分析模型。通过石墨富集、洛伦兹拟合和碳内标归一化,增强等离子体信号强......
A Hydrogel's Formation Device for Quick Analysis of Liquid Samples Using Laser-Induced Breakdown Spe
The laser-induced breakdown spectroscopy technique has irreplaceable advantages in the field of detection due to its mul......
采用基底辅助激光诱导击穿光谱技术,以标准油中的Mg、Ti、Ni与Cr为目标元素进行定量分析。选定Mg II 279.55 nm、Ti I 334.94 nm、......
Weighted-averaging-based classification of laser-induced breakdown spectroscopy measurements using m
In this study,efficient spectral line selection and weighted-averaging-based processing schemes are proposed for the cla......
Qualitative and semi-quantitative analysis of health-care pharmaceutical products using laser-induce
Laser-induced breakdown spectroscopy (LIBS) is a sensitive optical technique that is capable of rapid multi-elemental an......
Comparison of sample temperature effect on femtosecond and nanosecond laser-induced breakdown spectr
In this paper,we investigated the emission spectra of plasmas produced from femtosecond and nanosecond laser ablations a......
Relatively large measurement uncertainty severely hindered wide application for laser-induced break-down spectroscopy(LI......
Laser-induced breakdown spectroscopy(LIBS)has been widely studied due to its unique advantages such as remote sensing,re......