[光] 吸收光谱学
Temperature measurement principle and modulation absorption spectroscopy were introduced, and the influence of modulation amplitude on gas temperature measurement was analyzed.
介绍了温度测量及调制吸收光谱技术原理，分析了调制幅度对气体温度测量的影响。
The mechanism of intracavity absorption spectroscopy is described by the semiclassical theory of mode coupling in laser, and an analysis of the factors that determine sensitivity is given.
本文用激光器模式耦合半经典理论，阐述激光腔内吸收光谱学方法的物理机制，探求影响灵敏度的因素。
Methods The quenching mechanism of the fluorescence of bovine serum albumin by sibutramine hydrochloride was stu***d with the fluorescence and the absorption spectroscopy.
方法通过荧光法和吸收光谱法确定了盐酸************对牛血清白蛋白的荧光猝灭机制。
This paper stu***s the calcined cement clinker with tungsten tailings by means of atomic absorption spectroscopy(AAS) and X-Ray diffraction.
采取原子吸收分光光度计、X-射线衍射分析等方法研究利用钨尾矿煅烧水泥熟料。
Differential optical absorption spectroscopy has become a widely used method to measure trace gases in the atmosphere.
差分光学吸收光谱法已经变成了测量大气中微量气体浓度常用的方法。
An unknown polymer was determined by one-dimension and two-dimension technologies of infrared absorption spectroscopy and nuclear magnetic resonance.
利用红外吸收光谱及核磁共振波谱仪的一维和二维技术对一种未知聚合物试样进行鉴定。
In this paper a device of mercury atomizing steam generator is coupled with atomic absorption spectrophotometer, determination of trace mercury in feed by the cold atomic absorption spectroscopy.
本文使用汞原子蒸气发生装置与原子吸收仪联用，采用冷原子吸收光谱法测定饲料中的痕量汞。
Arsenic in soy sample treated by ultraviolet digestion was determinated by the flow injection hydride generation atomic absorption spectroscopy.
采用紫外消化技术处理样品，流动注射氢化物发生原子吸收光谱法测定酱油中砷。
The contents of copper and iron in silver-zinc cell material were determined by air-acetylene flame atomic-absorption spectroscopy.
采用空气-乙炔火焰原子吸收光谱法连续测定银锌电池材料用无甘油玻璃纸中铜、铁含量。
Tunable diode laser absorption spectroscopy has been applied in the fields of atmospheric chemistry and monitoring pollutant gases as a new method of measuring trace gases.
红外可调谐二极管激光吸收光谱技术作为新的痕量气体监测分析方法，在大气化学研究和污染气体监测中得到了应用。
Optical absorption spectroscopy and X-ray absorption fine structure technique were used to study the formation mechanism of Cu nanoparticles and local structures of copper atoms in silicate glass.
利用光学吸收谱和X射线吸收精细结构谱分析了铜纳米颗粒在玻璃中的形成机理及其局部结构。
A method of two beams photodissociations to study IR absorption spectroscopy was described.
介绍一种研究红外吸收光谱的双光束光解方法。
Differential optical absorption spectroscopy (DOAS) makes use of the flue gas pollutant different optical absorption characteristic at the UV-VIS wave band to measure their average concentration.
差分吸收光谱法是利用气体污染物在UV-VIS波段对光有不同的吸收特性来测量其平均浓度。
The principle of diode laser absorption spectroscopy (DLAS) applied to the combustion measurement of multi-species and multi-parameters is first briefly introduced in this paper.
本文首先简述了二极管激光吸收光谱术（DLAS）用于燃烧多组分多参数测量和控制的原理和方法。
The method for indirect determination of atropine sulfate by atomic absorption spectroscopy (AAS) was stu***d.
研究了原子吸收光谱法间接测定硫酸阿托品的方法。
The characterization of SiN thin films was stu***d by spectral ellipsometry, reflection spectra, infrared absorption spectroscopy (IR) and quasi-steady state photoconductance (QSSPC) measurements.
利用椭圆偏振光谱、反射谱、红外吸收谱和准稳态光电导（QSSPC）分析了氮化硅薄膜的特性。
Calcium in Positive powder of thermal-activated battery measured by atomic absorption spectroscopy with Nitrogen Monoxide was stu***d and reported in this paper.
研究与应用************-乙炔火焰原子吸收光谱法分析测定热激活电池正极粉中的含钙量。
Changes and change regularity of some minerals in green pepper, green cauliflower, spinach and celery in quick freezing and freezing storage were assayed by using atomic absorption spectroscopy (AAS).
用原子吸收分光光度计法分析测定了菜椒、绿菜花、菠菜、芹菜等几种蔬菜在速冻加工与冷藏过程中营养元素的变化及变化规律。
The mechanism of coloration of sphalerite has been stu***d with the help of optical absorption spectroscopy and the single electron MO-energy band model.
本文采用电子吸收光谱和分子轨道（MO）-能带理论模型，系统地研究了不同颜色的闪锌矿呈色的机理和本质。
A method has been developed for the determination of sodium and potassium in ultra-pure water by graphite furnace atomic absorption spectroscopy.
提出了应用石墨炉原子吸收测定超纯水中痕量钾和钠的方法。
The properties of the DLC film were discussed from analysis of infrared absorption spectroscopy.
利用红外吸收谱分析了薄膜的结构，对高质量薄膜获得的机理也作了探讨。
Optical sensors based on NIR tunable diode laser absorption spectroscopy were widely used because of high sensitivity, small volume and less maintenance.
实验以可调谐二极管激光吸收光谱和谐波探测技术为基础，开展便携式天然气管道泄漏遥感探测技术的研究。
Then, the films were characterized with X ray photoelectron spectroscopy(XPS), X ray diffraction(XRD), ultraviolet visible light absorption spectroscopy, and atomic force microscopy(AFM).
用X光电子能谱、X射线衍射、紫外可见吸收光谱、原子力显微镜等手段对制备的薄膜进行了表征。
The Cavity enhanced absorption spectroscopy based on a tunable DFB diode laser (TDL-CEAS) was described.
介绍了用DFB型可调谐半导体激光器做光源的腔增强吸收光谱（TDL-CEAS）技术。
The influence of light intensity fluctuations can be eliminated by using scanned-wavelength direct absorption spectroscopy.
扫描波长直接吸收光谱学对光强度波动的影响可以消除。
Orientation of azobenzene units in self assembled multilayer films of two side chain azo polyelectrolytes was investigated by using polarized UV Vis absorption spectroscopy.
用偏振紫外光谱研究了两种侧链偶氮聚电解质静电逐层自组装膜中偶氮生色团的初始取向。
The experimental results of zinc content in finger nails are determined by flame atomic absorption spectroscopy.
采用火焰原子吸收法测定人指甲中锌的含量。
The sample is evaluated by Fourier transformation infrared absorption spectroscopy(FTIR), X-ray photoelectron spectroscopy(XPS), X-ray diffraction analysis(XRD) and Vickers microhardness measurement.
对这种新材料进行了傅里叶变换红外吸收光谱、X射线光电子能谱、X射线衍射和薄膜的维氏显微硬度等测量。
A comparision of the R and A values of the atomic absorption spectroscopy and periodate spectrophotometry for the determination of the manganese index in wine was used as an example.
以酒锰卫生指标为例，计算并比较了原子吸收法和*********钾比色法的R和A值。
The surface modification results were analysed by the methods of the specific surface area measurement and infra red absorption spectroscopy, and the best conditions for modification were obtained.
应用表面改性剂进行了氢氧化铝表面改性研究，采用了比表面积测定、红外光谱分析等测试方法对改性效果进行评价，确定了最佳改性条件。
An online gas analyzer with taking HF gas detection as an example based on tunable diode laser absorption spectroscopy (TDLAS) technique is presented.
以HF气体检测为例，简要介绍了基于数字式控制模块的可调谐半导体激光吸收光谱学方法的工业气体分析技术。
吸收光谱法（Absorption Spectroscopy）是一种通过物质对特定波长电磁辐射的吸收特性来分析其成分或浓度的分析技术。该方法基于物质分子或原子在吸收光能时发生电子跃迁的原理，不同物质因其能级结构差异会选择性吸收特定波长的光，形成独特的“吸收指纹”。
当电磁辐射（如紫外光、可见光或红外光）通过样品时，物质内部粒子会吸收与其能级差相匹配的光子能量，导致入射光强度衰减。通过测量入射光与透射光的强度比，可绘制吸收光谱曲线。该曲线的峰值位置对应物质特征吸收波长，峰面积则与物质浓度相关。这一关系遵循朗伯-比尔定律： $$ A = varepsilon l c $$ 其中$A$为吸光度，$varepsilon$为摩尔吸光系数，$l$为光程长度，$c$为物质浓度。
实际应用中，美国药典（USP）将紫外吸收光谱作为药物纯度检测的法定方法，而哈勃太空望远镜则通过吸收光谱分析星际物质组成。
吸收光谱学（Absorption Spectroscopy）是通过研究物质对特定波长光的吸收特性来分析其组成和结构的重要光谱学方法。以下从多个维度进行详细解析：
1. 核心原理 当连续光谱的光穿过物质时，特定波长的光子会被吸收，导致电子、分子振动或转动能级跃迁。根据朗伯-比尔定律，吸光度与物质浓度、光程长度成正比，这构成了定量分析的基础。不同物质因能级差异呈现独特的吸收峰，例如分子在红外区（2.5-25μm）表现出振动-转动吸收带。
2. 研究对象与光谱特征
• 原子吸收：呈现线状光谱（如钠D线589nm），用于金属元素检测
• 分子吸收：形成带状光谱（如紫外-可见区的电子跃迁，红外区的振动模式）
• 生物大分子：叶绿素在红光（650nm）和蓝光（450nm）处有强吸收峰
3. 主要应用领域
√成分分析：通过特征峰识别未知物质（如药物检测）
√定量检测：依据吸光度测定溶液浓度（原子吸收法测重金属）
√结构解析：红外光谱推断有机分子官能团
√环境监测：大气污染物吸收光谱实时监测
4. 典型仪器与技术 分光光度计是核心设备，包含光源、单色器、样品室和检测器四大模块。现代技术如傅里叶变换红外光谱（FTIR）显著提升了分辨率和灵敏度。原子吸收光谱仪则采用空心阴极灯产生特征辐射源。
5. 与发射光谱的关系 二者形成互补：吸收光谱反映基态→激发态的跃迁，而发射光谱记录激发态→基态的能量释放过程。联合使用可全面解析物质能级结构。
该技术已渗透到化学、生物、环境等学科，如植物生理学中通过吸收光谱确定光合色素种类，材料科学中分析半导体能带结构等。
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