[光] 吸收光譜學
Temperature measurement principle and modulation absorption spectroscopy were introduced, and the influence of modulation amplitude on gas temperature measurement was analyzed.
介紹了溫度測量及調制吸收光譜技術原理，分析了調制幅度對氣體溫度測量的影響。
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經典理論，闡述激光腔内吸收光譜學方法的物理機制，探求影響靈敏度的因素。
Methods The quenching mechanism of the fluorescence of bovine serum albumin by sibutramine hydrochloride was stu***d with the fluorescence and the absorption spectroscopy.
方法通過熒光法和吸收光譜法确定了鹽酸************對牛血清白蛋白的熒光猝滅機制。
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計、X-射線衍射分析等方法研究利用鎢尾礦煅燒水泥熟料。
Differential optical absorption spectroscopy has become a widely used method to measure trace gases in the atmosphere.
差分光學吸收光譜法已經變成了測量大氣中微量氣體濃度常用的方法。
An unknown polymer was determined by one-dimension and two-dimension technologies of infrared absorption spectroscopy and nuclear magnetic resonance.
利用紅外吸收光譜及核磁共振波譜儀的一維和二維技術對一種未知聚合物試樣進行鑒定。
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.
本文使用汞原子蒸氣發生裝置與原子吸收儀聯用，采用冷原子吸收光譜法測定飼料中的痕量汞。
Arsenic in soy sample treated by ultraviolet digestion was determinated by the flow injection hydride generation atomic absorption spectroscopy.
采用紫外消化技術處理樣品，流動注射氫化物發生原子吸收光譜法測定醬油中砷。
The contents of copper and iron in silver-zinc cell material were determined by air-acetylene flame atomic-absorption spectroscopy.
采用空氣-乙炔火焰原子吸收光譜法連續測定銀鋅電池材料用無甘油玻璃紙中銅、鐵含量。
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.
紅外可調諧二極管激光吸收光譜技術作為新的痕量氣體監測分析方法，在大氣化學研究和污染氣體監測中得到了應用。
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.
利用光學吸收譜和X射線吸收精細結構譜分析了銅納米顆粒在玻璃中的形成機理及其局部結構。
A method of two beams photodissociations to study IR absorption spectroscopy was described.
介紹一種研究紅外吸收光譜的雙光束光解方法。
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.
差分吸收光譜法是利用氣體污染物在UV-VIS波段對光有不同的吸收特性來測量其平均濃度。
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.
本文首先簡述了二極管激光吸收光譜術（DLAS）用于燃燒多組分多參數測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.
研究了原子吸收光譜法間接測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.
利用橢圓偏振光譜、反射譜、紅外吸收譜和準穩态光電導（QSSPC）分析了氮化矽薄膜的特性。
Calcium in Positive powder of thermal-activated battery measured by atomic absorption spectroscopy with Nitrogen Monoxide was stu***d and reported in this paper.
研究與應用************-乙炔火焰原子吸收光譜法分析測定熱激活電池正極粉中的含鈣量。
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計法分析測定了菜椒、綠菜花、菠菜、芹菜等幾種蔬菜在速凍加工與冷藏過程中營養元素的變化及變化規律。
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.
本文采用電子吸收光譜和分子軌道（MO）-能帶理論模型，系統地研究了不同顔色的閃鋅礦呈色的機理和本質。
A method has been developed for the determination of sodium and potassium in ultra-pure water by graphite furnace atomic absorption spectroscopy.
提出了應用石墨爐原子吸收測定超純水中痕量鉀和鈉的方法。
The properties of the DLC film were discussed from analysis of infrared absorption spectroscopy.
利用紅外吸收譜分析了薄膜的結構，對高質量薄膜獲得的機理也作了探讨。
Optical sensors based on NIR tunable diode laser absorption spectroscopy were widely used because of high sensitivity, small volume and less maintenance.
實驗以可調諧二極管激光吸收光譜和諧波探測技術為基礎，開展便攜式天然氣管道洩漏遙感探測技術的研究。
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光電子能譜、X射線衍射、紫外可見吸收光譜、原子力顯微鏡等手段對制備的薄膜進行了表征。
The Cavity enhanced absorption spectroscopy based on a tunable DFB diode laser (TDL-CEAS) was described.
介紹了用DFB型可調諧半導體激光器做光源的腔增強吸收光譜（TDL-CEAS）技術。
The influence of light intensity fluctuations can be eliminated by using scanned-wavelength direct absorption spectroscopy.
掃描波長直接吸收光譜學對光強度波動的影響可以消除。
Orientation of azobenzene units in self assembled multilayer films of two side chain azo polyelectrolytes was investigated by using polarized UV Vis absorption spectroscopy.
用偏振紫外光譜研究了兩種側鍊偶氮聚電解質靜電逐層自組裝膜中偶氮生色團的初始取向。
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測定人指甲中鋅的含量。
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.
對這種新材料進行了傅裡葉變換紅外吸收光譜、X射線光電子能譜、X射線衍射和薄膜的維氏顯微硬度等測量。
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.
以酒錳衛生指标為例，計算并比較了原子吸收法和*********鉀比色法的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.
應用表面改性劑進行了氫氧化鋁表面改性研究，采用了比表面積測定、紅外光譜分析等測試方法對改性效果進行評價，确定了最佳改性條件。
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氣體檢測為例，簡要介紹了基于數字式控制模塊的可調諧半導體激光吸收光譜學方法的工業氣體分析技術。
吸收光譜法（Absorption Spectroscopy）是一種通過物質對特定波長電磁輻射的吸收特性來分析其成分或濃度的分析技術。該方法基于物質分子或原子在吸收光能時發生電子躍遷的原理，不同物質因其能級結構差異會選擇性吸收特定波長的光，形成獨特的“吸收指紋”。
當電磁輻射（如紫外光、可見光或紅外光）通過樣品時，物質内部粒子會吸收與其能級差相匹配的光子能量，導緻入射光強度衰減。通過測量入射光與透射光的強度比，可繪制吸收光譜曲線。該曲線的峰值位置對應物質特征吸收波長，峰面積則與物質濃度相關。這一關系遵循朗伯-比爾定律： $$ A = varepsilon l c $$ 其中$A$為吸光度，$varepsilon$為摩爾吸光系數，$l$為光程長度，$c$為物質濃度。
實際應用中，美國藥典（USP）将紫外吸收光譜作為藥物純度檢測的法定方法，而哈勃太空望遠鏡則通過吸收光譜分析星際物質組成。
吸收光譜學（Absorption Spectroscopy）是通過研究物質對特定波長光的吸收特性來分析其組成和結構的重要光譜學方法。以下從多個維度進行詳細解析：
1. 核心原理 當連續光譜的光穿過物質時，特定波長的光子會被吸收，導緻電子、分子振動或轉動能級躍遷。根據朗伯-比爾定律，吸光度與物質濃度、光程長度成正比，這構成了定量分析的基礎。不同物質因能級差異呈現獨特的吸收峰，例如分子在紅外區（2.5-25μm）表現出振動-轉動吸收帶。
2. 研究對象與光譜特征
• 原子吸收：呈現線狀光譜（如鈉D線589nm），用于金屬元素檢測
• 分子吸收：形成帶狀光譜（如紫外-可見區的電子躍遷，紅外區的振動模式）
• 生物大分子：葉綠素在紅光（650nm）和藍光（450nm）處有強吸收峰
3. 主要應用領域
√成分分析：通過特征峰識别未知物質（如藥物檢測）
√定量檢測：依據吸光度測定溶液濃度（原子吸收法測重金屬）
√結構解析：紅外光譜推斷有機分子官能團
√環境監測：大氣污染物吸收光譜實時監測
4. 典型儀器與技術 分光光度計是核心設備，包含光源、單色器、樣品室和檢測器四大模塊。現代技術如傅裡葉變換紅外光譜（FTIR）顯著提升了分辨率和靈敏度。原子吸收光譜儀則采用空心陰極燈産生特征輻射源。
5. 與發射光譜的關系 二者形成互補：吸收光譜反映基态→激發态的躍遷，而發射光譜記錄激發态→基态的能量釋放過程。聯合使用可全面解析物質能級結構。
該技術已滲透到化學、生物、環境等學科，如植物生理學中通過吸收光譜确定光合色素種類，材料科學中分析半導體能帶結構等。
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