中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 激光诱导击穿光谱检测猪饲料中Cu元素含量技术研究 饲料工业 2017,38 (19) 50-54
Position: Home > Articles > Laser-induced breakdown spectroscopy study on Cu content in pig feed technology Feed Industry 2017,38 (19) 50-54

激光诱导击穿光谱检测猪饲料中Cu元素含量技术研究

作  者：
刘珊珊;张俊;林思寒;赖曲芳;黎静;刘木华;艾子平
单  位：
江西农业大学工学院;江西农业大学动物科学技术学院
关键词：
激光诱导击穿光谱;饲料;铜;参数优化;定量分析
摘  要：
生长猪长期食用高铜饲料将导致机体中毒。试验对猪饲料中Cu元素用单脉冲激光诱导击穿光谱进行分析。研究首先确定了Cu元素的特征分析谱线为CuⅠ324.74 nm;应用单脉冲激光作为激发光源对饲料中铜元素的光谱强度进行采集,为获得最佳的采集参数,当采集延时为1.28μs时,通过改变激光能量的方式得到当激光能量为240 MJ时,采集效果较好;然后以240 MJ激光能量为固定值,通过改变采集延时时间,得到最优的采集延时时间为1.58μs。为了验证最佳参数的选择的准确性,采用全面试验方法,通过分析谱线光谱强度和RSD寻找最佳试验参数,确定了检测饲料中Cu元素的激光诱导击穿光谱最佳试验参数条件为:激光能量240 MJ,采集延时1.58μs。建模集样品中Cu元素真实浓度与光谱强度值的相关拟合系数为0.985 2,预测集样品中Cu元素含量的的预测值与实际值的线性相关系数为0.989 1,平均相对误差为4.77%。文章的试验研究说明对激光诱导击穿光谱系统参数的优化可以提高该技术对目标元素的检测能力。
译  名：
Laser-induced breakdown spectroscopy study on Cu content in pig feed technology
作  者：
Liu Shanshan;Zhang Jun;Lin Sihan;Lai Qufang;Li Jing;Liu Muhua;Ai Ziping;
关键词：
laser-induced breakdown spectroscopy;;feed;;copper;;parameter optimization;;quantitative analysis
摘  要：
The growth of pig long-term consumption of high dietary copper will cause the body poison-ing. The test of single pulse laser induced breakdown spectroscopy analyses in pig feed Cu elements.Firstly, the analysis to determine the spectral lines of Cu element is Cu Ⅰ 324.74 nm; application ofsingle pulse laser as the excitation source to collect the spectral intensity of copper in feed, in order toobtain the optimal parameters of the acquisition, when the acquisition delay of 1.28 μs, by changingthe laser energy will get when the laser energy is 240 MJ the acquisition, the effect is good; and thento 240 MJ laser energy to a fixed value, by changing the acquisition delay time, get the optimal acqui-sition delay time is 1.58 μs. In order to verify the optimum selection accuracy, using comprehensivetest method, through the analysis of the spectral line spectral intensity and RSD search for optimal testparameters. The Cu element detection in feed laser induced breakdown spectroscopy optimal parame-ter conditions are as follows:laser energy is 240 MJ and delay time of LIBS is 1.58 μs.The correlationbetween elements of real coefficient Cu concentration and spectral intensity values in the sample setfor the 0.985 2 modeling, prediction of Cu content in the sample set the value of the linear correlationwith the actual value of the coefficient is 0.989 1, the average relative error is 4.77%. The optimiza-tion of the system parameters can improve the detection ability of the target elements.

相似文章

导出引用
计量
文章访问数: 6
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46