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1.
傅立叶变换红外光谱仪是继棱镜式、光栅式红外分光光度计后发展起来的第三代红外光谱仪,它以光通量大、测量速度快、准确度高和分辨率高等特点,越来越受到人们的普遍青睐,正在逐步取代传统的红外分光光度计。本文介绍的几种WQF系列傅立叶变换红外光谱仪是国产傅立叶变换红外光谱仪家族的最新成员。  相似文献   

2.
傅立叶变换红外光谱仪是继棱镜式,光栅式红外分光光度计后发展起来的第三代红外光谱仪。它以光通量大,测量速度快、准确度高和分辨率高等特点。越来越受到人们的普遍青睐,正在逐步取代传统的红外分光光度计,本文介绍的几种WQF系列傅立叶变换红外光谱仪是国产傅立叶变换红外光谱仪家族的最新成员。  相似文献   

3.
赛默飞世尔科技推出Thermo Scientific Nicolet iS10型傅立叶变换红外光谱仪。该产品引入光谱性能验证功能,由新版OMNIC Specta软件支持,显著简化了传统傅立叶变换红外光谱仪的数据分析、样品采集和仪器验证环节,成为完成这类分析任务的一种良好的选择。  相似文献   

4.
梁向晖 《现代仪器》2007,13(5):52-53
介绍TENSON 27型傅立叶变换红外光谱仪的特点,根据不同类型样品选择红外测量附件和样品制备方法以及仪器的日常维护。  相似文献   

5.
傅立叶变换红外显微镜新技术及应用   总被引:2,自引:0,他引:2  
余静 《现代仪器》2003,9(6):24-26,21
FT-IR显微镜技术是采用FT-IR光谱仪与光学显微镜联用的新型系统。红外显微镜技术是一种非破坏性技术,仅需要少量的样品,这些优势使得红外显微镜被理想地用于数量有限的样品。这里将论述红外显微镜对一种特殊法庭样品一头发纤维的分析。红外显微镜对于法庭科学是一个很重要的工具。  相似文献   

6.
本文报导了在Analect的TLC/FTIR联用系统上对未知混合物样品A的4个组份,未知混合物样品B的两个组份,以及对含量为3微克和5微克的标样均三硝基甲苯进行测定,均得到了满意的红外光谱图。  相似文献   

7.
8.
傅立叶变换红外光谱的SVM快速中药鉴别   总被引:2,自引:0,他引:2  
汪劲  程存归 《仪器仪表学报》2005,26(8):1590-1591
支持向量机是最近几年国际上模式识别研究的热点.文中研究基于向量机的傅立叶变换红外光谱中药材真伪快速鉴别方法.由于真品药材具有独特的红外光谱特征,该方法在中药材质量鉴别方面具有较好的可靠性和可推广性.  相似文献   

9.
本文综述近年来傅立叶变换红外光谱(FTIR)在癌症诊断中的应用进展。叙述FTIR在乳腺癌、宫颈癌、肺癌、肠癌、甲状腺癌、胃癌、胆囊癌、鼻咽癌、食道癌等诊断中的应用。为癌症临床的诊断和防治提供参考。  相似文献   

10.
支持向量机是最近几年国际上模式识别研究的热点.文中研究基于向量机的傅立叶变换红外光谱中药材真伪快速鉴别方法.由于真品药材具有独特的红外光谱特征,该方法在中药材质量鉴别方面具有较好的可靠性和可推广性.  相似文献   

11.
A new quantitative thin‐film X‐ray analysis procedure termed the ζ‐factor method is proposed. This new ζ‐factor method overcomes the two major limitations of the conventional Cliff‐Lorimer method for quantification: (1) use of pure‐element rather than multielement, thin‐specimen standards and (2) built‐in X‐ray absorption correction with simultaneous thickness determination. Combined with a universal, standard, thin specimen, a series of ζ‐factors covering a significant fraction of the periodic table can be estimated. This ζ‐factor estimation can also provide information about both the detector efficiency and the microscope–detector interface system. Light‐element analysis can also be performed more easily because of the built‐in absorption correction. Additionally, the new ζ‐factor method has several advantages over the Cliff‐Lorimer ratio method because information on the specimen thickness at the individual analysis points is produced simultaneously with compositions, thus permitting concurrent determination of the spatial resolution and the analytical sensitivity. In this work, details of the ζ‐factor method and how it improves on the Cliff‐Lorimer approach are demonstrated, along with several applications.  相似文献   

12.
The automative body shop is facing challenges of reduced volume, a proliferation of new materials and an increase in derivatives that all add up to a need for greater flexibility. Reducing the cost of die programme is a key strategy of the policy that Chrysler has adopted while Ford opted to establish a new body shop using old components. Global challenges are faced by Renault with process standardisation. In body shop, body-in-white manufacture does not always adhere to sequencing, as most of the sequencing work will be lost by the batch demands of the paint shop. The demands of the market has driven the OEMs to have a flexible body shop, which becomes more effective if they have an integrated strategy  相似文献   

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