
[分化][红外] 红外光谱法;红外线分光镜
Near infrared spectroscopy is an important method in noninvasive detection and diagnosis.
近红外光谱学技术是无损检测与诊断的重要方法。
Moreover, the article introduced some achievements in application in gasoline, ***sel oil quality analysis with near infrared spectroscopy.
进一步介绍了近红外光谱技术在柴油、汽油等油品质量分析中的应用成果。
The scientists combined this with another technique called near-infrared spectroscopy, which can be used to monitor changes in blood flow in the brain.
科学家将这个和另一种可以监视大脑中的血液流通的叫做近红外线光谱学的的技术联系起来。
Based on the model of multilayered biological tissue, a method to measure tissue oxygenation saturation by using noninvasive near infrared spectroscopy was present.
在多层生物组织模型下,提出了一种利用近红外光谱技术定量无损检测组织氧饱和度的方法。
Rapid advances in instrumentation and data processing techniques in recent years have allowed infrared spectroscopy to be increasingly applied to in situ or on line monitoring bioprocesses.
近几年,随仪器和数据处理技术的迅速发展,应用红外光谱技术对生物过程的原位或在线监测日益广泛。
Artificial neural network and its application in near infrared spectroscopy are presented in brief.
简要介绍了人工神经网络及其在近红外光谱分析中的应用。
The scientists monitored the dreamers with both magnetic resonance imaging and near-infrared spectroscopy to see patterns of heat in their subject's heads, which gives a picture of brain activity.
科学家们同时利用功能性核磁共振成像和近红外光谱技术来监测受试者,观察他们大脑的升温模式,以此获得大脑的活动图像。
The food industry applications of Near-infrared spectroscopy was introduced in this paper.
介绍现代近红外光谱技术在食品工业中的应用。
Based on the model of multi-layered biological tissue, a method to measure regional tissue oxygenation saturation by using noninvasive near infrared spectroscopy was given.
在多层生物组织模型条件下,提出了一种利用近红外光谱技术定量无损检测组织氧饱和度的方法。
Fourier transform infrared spectroscopy(FTIR)can be used for the continuously on-line detection of the air, biotic gas and exit gas components in industry.
傅立叶变换红外(FTIR)光谱技术可以对空气、生物气以及各种工业生产过程中的排气、废气进行实时在线监测。
Near-infrared laser Raman spectroscopy combined with infrared spectroscopy is an effective method to study the structure of human red blood cell.
近红外激光拉曼光谱结合红外光谱信息,可作为研究人血红细胞结构的有效测试手段。
The p dichlorobenzene and naphthalene in mothproofing agent was determined by infrared spectroscopy.
用红外光谱法测定了防蛀剂中对*********和萘的含量。
Near infrared spectroscopy(NIRS) technique has become a new method of pharmaceutical analysis as a ******, fast, and non-invasive method.
近红外光谱技术作为一种简单、快速、无损的检测手段,已经成为药物分析中新兴的方法。
Discussion of what information infrared spectroscopy provides.
讨论一下红外光谱学能提供什么信息。
In this paper, the authors deai with the infrared spectroscopy of quartz powder from Erjia gold deposit.
本文对海南二甲金矿不同含金性的石英进行了粉末红外光谱的研究。
Because of the superiority of Near-infrared spectroscopy in the detection of food composition as good detecting method, its application is more and more.
作为一种优越的检测手段,近红外光谱技术在食品成分检测中有着独有的优势,因而在食品工业领域得到广泛的应用。
The structure of cationic waterborne polyurethane and the structure changes of polymer after heparinization were characterized with infrared spectroscopy.
使用红外光谱分析了阳离子水性聚氨酯的结构及其肝素化处理后聚合物结构的变化。
The paper has reviewed the analysis method, the gas chromatography and the near infrared spectroscopy for determining olefin and aromatic hydrocarbon content in gasoline.
对目前采用的快速、简便分析汽油中烯烃、芳烃含量的气相色谱和近红外光谱分析方法进行了评述。
The characterization of the PAP film by infrared spectroscopy suggested that the PAP is a ladder polymer with phenoxazine rings as electroactive sites.
用红外吸收光谱法表征了聚邻*********薄膜,认为该聚合物具有梯形结构,其中吩恶嗪环作为电活性点。
Fourier transform infrared spectroscopy(FTIR)can be used for the continuously on line quantitative determination of the concentrations of several gas components in smoke gas.
利用傅里叶变换红外(FTIR)光谱技术可以对气体组分的浓度进行连续的在线定量分析。
Experiments carried out on pyrite ultraviolet, visible, infrared spectroscopy, to obtain pyrite full spectrum of sunlight absorption rate data.
本文通过对黄铁矿紫外、可见、近红外光谱的分析,获得黄铁矿对太阳光全光谱的吸收率数据。
The present work aimed to evaluate the ability of near infrared spectroscopy(NIRS) in predicting the springiness of fish-balls.
本实验探讨利用近红外光谱分析技术(NIRS)测定鱼丸弹性的可能性,并建立数学模型。
The synthesized films were characterized by X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy.
用X光电子谱和傅立叶变换红外谱方法表征了制备的薄膜。
红外光谱学(Infrared Spectroscopy)是一种基于分子振动特性进行分析的光谱技术。当物质受到特定波长范围(通常为0.78–1000微米)的红外光照射时,分子内部的化学键会发生振动能级跃迁,并选择性吸收与其振动频率匹配的红外辐射。通过检测样品对红外光的吸收情况,可获取分子结构的“指纹”信息。
该技术的核心原理是分子偶极矩变化。只有能引起分子偶极矩变化的振动模式(如伸缩振动、弯曲振动)才会在红外光谱中产生吸收峰。例如,羰基(C=O)的伸缩振动在1700 cm⁻¹附近形成特征峰,该数据被收录于《分析化学标准方法》中。
现代红外光谱仪主要由光源系统(如能斯特灯)、干涉仪(傅里叶变换型仪器)、样品室及检测器(如MCT检测器)构成。美国材料与试验协会(ASTM)发布的E1252标准详细规定了仪器的校准与测试规范。
在应用领域,该技术被广泛用于:
根据《自然》期刊的最新研究,近红外光谱(NIR)结合化学计量学方法,已在农产品质量快速检测中实现90%以上的分类准确率。但需注意,红外光谱对非极性键(如C-C单键)的检测灵敏度较低,需配合拉曼光谱进行互补分析。
Infrared Spectroscopy(红外光谱学) 是一种研究物质分子结构与化学组成的光谱分析技术,主要基于分子对红外光的吸收特性。以下是详细解释:
红外光谱学属于光谱学的分支,专注于物质与红外光(波长范围约0.75-300μm)的相互作用。当红外光照射物质时,分子中的化学键会吸收特定频率的光,引发振动或转动能级的跃迁,形成与分子结构相关的吸收光谱。
根据波长范围,红外光谱分为:
红外光谱学通过分析分子振动和转动信息,提供了一种非破坏性、高效的化学结构鉴定手段,广泛应用于科研与工业领域。如需更详细的技术参数或案例,可参考权威文献或仪器手册。
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