中国地质大学（武汉）
材化学院
课程名称：文件检索
班级：031111
姓名：***
学号：***********
题目(4)：光腔衰荡光谱(CRDS)技术
1.Comparison of water isotope-ratio determinations using two cavity ring-down instruments and classical mass spectrometry in continuous ice-core analysis
作者：Olivia J. Maselli , Diedrich Fritzsche , Lawrence Layman , Joseph R. McConnell , Hanno Meyer
作者单位：Desert Research Institute;;Alfred-Wegener Institute for Polar and Marine Research
刊名：Isotopes in Environmental and Health Studies, 2013, Vol.49 (3), pp.387-398
来源数据库：Taylor & Francis期刊
DOI：10.1080/10256016.2013.781598
关键词：cavity ring-down ; hydrogen-2 ; ice-core ; isotope measurements ; methods and equipment ; oxygen-18 ; paleoclimatology ; water ;
原始语种摘要：We present a detailed comparison between subsequent versions of commercially available wavelength-scanned cavity ring-down water isotope analysers (L2120-i and L2130-i, Picarro Inc.). The analysers are used in parallel in a continuous mode by adaption of a low-volume flash evaporation module.
Application of the analysers to ice-core analysis is assessed by comparison between continuous water isotope measurements of a glacial ice-core from Severnaya Zemlya with discrete isotope-ratio mass spectrometry measurements performed on parallel samples from the same ice-core. The great advances between instrument versions, particularly in the measurement of δ2H, allow the continuous technique to achieve the same high level of accuracy and precision obtained using traditional isotope spectrometry techniques in a fraction of the experiment time. However, when applied to continuous ice-core measurements, increased integration times result in a compromise of the achievable depth resolution of the ice-core records.
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[1] Olga Garmash. Deposition History of Polychlorinated Biphenyls to the Lomonosovfonna Glacier, Svalbard: A 209 Congener Analysis. [J].Environ. Sci. Technol.,2013
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2.Toward a real-time measurement of atmospheric mercury
concentrations using cavity ring-down spectroscopy
作者：X. Faïn , H. Moosmüller , D. Obrist
刊名：Atmospheric Chemistry and Physics Discussions, 2009, Vol.9 (5), pp.22143
来源数据库：DOAJ期刊
原始语种摘要：A new sensor based on cavity ring-down spectroscopy (CRDS) has been developed for the measurement of gaseous elemental mercury (Hg0) mass concentration with sub-ng m−3 detection limit and high temporal resolution. Cavity ring-down spectroscopy is a direct absorption technique that utilizes path lengths of up to multiple kilometers in a compact absorption cell and has a significantly higher sensitivity than conventional absorption spectroscopy. Our prototype uses a frequency-doubled, tuneable dye laser emitting pulses at ~253.65 nm with a pulse repetition frequency of 50 Hz. The dye laser incorporates a unique piezo element attached to its tuning grating allowing it to tune the laser on and off the Hg0 absorption line on a pulse to pulse basis to facilitate... differential absorption measurements. Hg0 absorption measurements with this CRDS laboratory prototype are highly linearly related to Hg0 concentrations determined by a Tekran 2537B analyzer over a Hg0 concentration range of four orders of magnitude, from 0.2 ng m−3 to 573 ng m−3 implying excellent linearity of both instruments. The current CRDS instrument has a~sensitivity of 0.10 ng m−3 at 10 s time resolution. This tool opens new prospects for the study of Hg0 because of its high temporal resolution and reduced limited sample volume requirements (<0.5 l of sample air). Future applications may include ambient Hg0 flux measurements with eddy covariance techniques, which require measurements of Hg0 concentrations with sub-ng m−3 sensitivity and sub-second time resolution.
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3.Real-time monitoring of breath ammonia during haemodialysis: use of ion mobility spectrometry (IMS) and cavity ring-down spectroscopy (CRDS) techniques.
作者：Neri Giovanni , Lacquaniti Antonio , Rizzo Giuseppe , Donato Nicola , Latino Mariangela , Buemi Michele
作者单位：Correspondence and offprint requests to: Michele Buemi; E-mail:
***************.
刊名：Nephrology, Dialysis, Transplantation, 2012, Vol.27 (7), pp.2945-52
来源数据库：PubMed期刊
DOI：10.1093/ndt/gfr738
原始语种摘要：Background The diffusion of high-performance analytical technology has opened prospects for breath diagnosis as a non-invasive diagnostic tool. In this study, ion mobility spectrometry (IMS) and cavity ring-down spectroscopy (CRDS) techniques were used to analyse ammonia gas NH3 in real-time in breath from patients undergoing haemodialysis (HD) treatment and any correlation with blood urea nitrogen (BUN) levels and Kt/V were investigated. Methods We studied 20 patients on intermittent HD treatment. The first breath samples were taken before the start of dialysis and further breath samples were taken every hour during the treatment and after the end of the session. An evaluation was also made of 20 healthy volunteers, acting as controls [healthy subjects (HS)]. Results Breath ammonia... concentrations were higher in CRDS-HD (914.5 ± 301.4 versus 280 ± 120 parts per billion (p.p.b.), P < 0.0001) and IMS-HD patients (964.4 ± 402.4 versus 280 ± 120 p.p.b., P < 0.0001) than in HS. We assessed real-time variations in the levels of NH3 and showed a continuous decrease in the levels of NH3. Expired NH3 correlated directly with BUN levels, both in the IMS-HD (P = 0.002; r = 0.84; P = 0.009; r = 0.76) and in the CRDS-HD group (P = 0.005; r = 0.80; P = 0.008; r = 0.77), respectively, both before and at the end of
dialysis. A direct correlation with Kt/V was found in both groups studied (IMS-HD: P = 0.003; r = 0.82; CRDS-HD: P = 0.006; r = 0.79). Conclusions Breath monitoring of NH3 with IMS and CRDS techniques could be useful to assess the real-time clinical status of patients during HD. By using pre-dialysis ammonia values, an approximate calculation of the Kt/V(urea) ratio can be established.
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(CRDS)
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4.High-accuracy continuous airborne measurements of greenhouse gases (CO2 and CH4) using the cavity ring-down spectroscopy (CRDS) technique
作者：H. Chen , J. Winderlich , C. Gerbig , A. Hoefer , C. W. Rella , E. R. Crosson , A. D. Van Pelt , J. Steinbach , O. Kolle , V. Beck , B. C. Daube , E. W. Gottlieb , V. Y. Chow , G. W. Santoni , S. C. Wofsy
刊名：Atmospheric Measurement Techniques, 2010, Vol.3 (2), pp.375
来源数据库：DOAJ期刊
原始语种摘要：High-accuracy continuous measurements of greenhouse gases (CO2 and CH4) during the BARCA (Balanço Atmosférico Regional de Carbono na Amazônia) phase B campaign in Brazil in May 2009 were accomplished using a newly available analyzer based on the cavity ring-down spectroscopy (CRDS) technique. This analyzer was flown without a drying system or any in-flight calibration gases. Water vapor corrections associated with dilution and pressure-broadening effects for CO2 and CH4 were derived from laboratory
experiments employing measurements of water vapor by the CRDS analyzer. Before the campaign, the stability of the analyzer was assessed by laboratory tests under simulated flight conditions. During the campaign, a comparison of CO2 measurements between the CRDS analyzer and a nondispersive infrared (NDIR) analyzer on board the same aircraft showed a mean difference of 0.22±0.09 ppm for all flights over the Amazon rain forest. At the end of the campaign, CO2 concentrations of the synthetic calibration gases used by the NDIR analyzer were determined by the CRDS analyzer. After correcting for the isotope and the pressure-broadening effects that resulted from changes of the composition of synthetic vs. ambient air, and applying those concentrations as calibrated values of the calibration gases to reprocess the CO2 measurements made by the NDIR, the mean difference between the CRDS and the NDIR during BARCA was reduced to 0.05±0.09 ppm, with the mean standard deviation of 0.23±0.05 ppm. The results clearly show that the CRDS is sufficiently stable to be used in flight without drying the air or calibrating in flight and the water corrections are fully adequate for high-accuracy continuous airborne measurements of CO2 and CH4.
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5.Accurate measurements of carbon monoxide in humid air using the cavity ring-down spectroscopy (CRDS) technique
作者：H. Chen , A. Karion , C. W. Rella , J. Winderlich , C. Gerbig , A. Filges , T. Newberger , C. Sweeney , P. P. Tans
作者单位： NOAA Earth System Research Laboratory, Boulder, CO 80305, USA;;Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, USA;;Picarro, Inc., Santa Clara, CA, USA;;Max Planck Institute for Chemistry, Mainz, Germany;;Max Planck Institute for Biogeochemistry, Jena, Germany
刊名：Atmospheric Measurement Techniques, 2013, Vol.6 (4), pp.1031-1040
来源数据库：Copernicus期刊
DOI：10.5194/amt-6-1031-2013
原始语种摘要：Accurate measurements of carbon monoxide (CO) in humid air have been madeusing the cavity ring-down spectroscopy (CRDS) technique. The measurementsof CO mole fractions are determined from the strength of its spectralabsorption in the near-infrared region (~1.57 μm) afterremoving interferences from adjacent carbon dioxide (CO2) and watervapor (H2O) absorption lines. Water correction functions that accountfor the dilution and pressure-broadening effects as well as absorption lineinterferences from adjacent CO2 and H2O lines have been derivedfor CO2 mole fractions between 360–390 ppm and for reported H2Omole fractions between 0–4%. The line interference corrections areindependent of CO mole fractions. The dependence of the... line interferencecorrection on CO2 abundance is estimated to be approximately −0.3 ppb/100 ppmCO2 for dry mole fractions of CO. Comparisons of watercorrection functions from different analyzers of the same type showsignificant differences, making it necessary to perform instrument-specificwater tests for each individual analyzer. The CRDS analyzer was flown on anaircraft in Alaska from April to November in 2011, and the accuracy of theCO measurements by the CRDS analyzer has been validated against discreteNOAA/ESRL flask sample measurements made on board the same aircraft, with amean difference between integrated in situ and flask measurements of−0.6 ppb and a standard deviation of
2.8 ppb. Preliminary testing of CRDSinstrumentation that employs improved spectroscopic model functions forCO2, H2O, and CO to fit the raw spectral data (available since thebeginning of 2012) indicates a smaller water vapor dependence than themodels discussed here, but more work is necessary to fully validate theperformance.
The
CRDS
technique
provides
an
accurate
and
low-maintenancemethod of monitoring the atmospheric dry mole fractions of CO in humid airstreams.
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6.Cavity ring-down spectroscopy of the oxygen B-band with absolute frequency reference to the optical frequency comb.
作者：Domysławska J , Wójtewicz S , Lisak D , Cygan A , Ozimek F , Stec K , Radzewicz Cz , Trawiński R S , Ciuryło R
作者单位：Instytut Fizyki, Uniwersytet Mikołaja Kopernika, ul. Grudziadzka 5/7, 87-100 Toruń,***********************.pl
刊名：The Journal of Chemical Physics, 2012, Vol.136 (2), pp.024201
来源数据库：PubMed期刊
DOI：10.1063/1.3675903
原始语种摘要：Absolute positions of several oxygen B-band lines were measured with the Pound-Drever-Hall-locked frequency-stabilized cavity ring-down spectrometer. The frequency axis of spectra was linked to the optical frequency comb. Achieved uncertainties of line positions are between 0.9 and 2.9 MHz. Self-pressure shifts coefficients are also reported.
翻译：绝对位置的几个测量氧气拾音系统行英镑Drever大厅锁 频率稳定腔衰荡光谱。光谱的频率轴与光学频率梳。实现不确定性0.9和2.9兆赫之间的线位置。自压式变化系
数也报道。
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7.First Cavity Ring-Down Spectroscopy HO2 Measurements
in a Large Photoreactor
作者：M. Djehiche , A. Tomas , Christa Fittschen , P. Coddeville
作者单位：1 Univ. Lille Nord de France, Lille, Frankreich;;2 Université Lille Nord de France, Physico-Chimie des Processus de Combustion, Villeneuve d'Ascq Cedex, Frankreich;;3 Univ. Lille Nord de France, Lille, Frankreich
刊名：International journal of research in physical chemistry and chemical physics, 2011, Vol.225 (9-10), pp.938-992
来源数据库：De Gruyter期刊
DOI：10.1524/zpch.2011.0143
关键词：HO2 Radical ; CRDS ; Kinetics ; Atmospheric Simulation Chamber ;
原始语种摘要：Abstract The HO2 radical is one of the most important intermediate species in atmospheric chemistry. We report on the development of a new photoreactor with first in-situ measurement of HO2 radical photostationary concentrations using continuous wave cavity ring-down spectrometry (cw-CRDS). Characterization of the actinic photon flux was carried out by NO2 actinometry. Photolysis of Cl2/methanol mixtures in air under UV light allowed the measurement of HO2 photostationary concentrations of a few 1010 molecules with an HO2 detection limit of 1.5 × 1010 molecules cm-3 . The feasibility of HO2
direct measurement in a reaction chamber is demonstrated through the measurement of the HO2 overall loss at different pressures showing the importance of HO2 diffusion and wall loss in such low pressure quartz reactor. The rate coefficient for the HO2+HO2 reaction has been measured at 6.6, 24 and 118 mbar and found to be in good agreement with the recommended value.
翻译：HO2自由基是其中最重要的中间物种在大气化学。我们报告的发展一个新的第一现场测量HO2自由基浓度光反应器使用连续波腔衰荡光谱法(cw-CRDS)。描述光的光子通量是由NO2光量测定。光解Cl2 /甲醇混合在空气中紫外线照射下允许测量HO2 光反应器几1010个分子浓度HO2检出限为1.5×1010分子cm-3 。在反应室的可行性HO2直接测量是演示了通过测量HO2总体损失在不同压力显示HO2扩散的重要性和在这种低压石英反应器壁损失。HO2 + HO2反应速率系数的震级为6.6级,24和118年毫巴发现是在良好的协议与推荐值。
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8.Liquid-Phase and Evanescent-Wave Cavity Ring-Down Spectroscopy in Analytical Chemistry
作者：L. van der Sneppen , F. Ariese , C. Gooijer , W. Ubachs
作者单位：SARD
刊名：Annual Review of Analytical Chemistry, 2009, Vol.2 (1)
来源数据库：Annual Reviews期刊
DOI：10.1146/annurev-anchem-060908-155301
英文摘要：Due to its simplicity, versatility, and straightforward interpretation into absolute concentrations, molecular absorbance detection is widely used in liquid-phase analytical chemistry. Because this method is inherently less sensitive than zero-background techniques such as fluorescence detection, alternative, more sensitive measurement principles are being explored. This review discusses one of these: cavity ring-down spectroscopy (CRDS). Advantages of this technique include
its
long
measurement
pathlength
and
its
insensitivity
to
light-source-intensity fluctuations. CRDS is already a well-established technique in the gas phase, so we focus on two new modes: liquid-phase CRDS and evanescent-wave (EW)-CRDS. Applications of liquid-phase CRDS in analytical chemistry focus on improving the... sensitivity of absorbance detection in liquid chromatography. Currently, EW-CRDS is still in early stages: It is used to study basic interactions between molecules and silica surfaces. However, in the future this method may be used to develop, for instance, biosensors with high specificity.
翻译：由于其简单性、通用性和简单的解释为绝对浓度,分子吸收检测广泛应用于液相分析化学。因为该方法本质上是不如0背景敏感技术,如荧光检测,选择,更敏感的测量原则正在探讨。本文讨论了其中的一个:腔衰荡光谱(CRDS)。该技术的优点是其长期测量通路长度和光源的强度波动不敏感。CRDS已经是一个成熟的技术在气相,所以我们专注于两个新模式:液相CRDS和隐失波-CRDS(EW)。液相CRDS在分析化学中的应用集中在改善……吸光度的敏感性在液相色谱检测。目前,EW-CRDS仍处于早期阶段:它是用于研究基本分子之间的相互作用和二氧化硅表面。然而,在未来可以将此方法用于开发,例如,高特异性的生物传感器。
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9.Cavity ring-down spectroscopy measurements of sub-Doppler hyperfine structure
作者：D. A. Long , D. K. Havey , M. Okumura , C. E. Miller , and J. T. Hodges
刊名：Physical Review A, 2010, Vol.81
来源数据库：美国物理协会期刊
DOI：10.1103/PhysRevA.81.064502
原始语种摘要：Frequency-stabilized cavity ring-down spectroscopy 1Σg+ ← (FS-CRDS) was used to measure magnetic dipole transitions in the b 3Σg-(0,0) band of O2. The 17O-containing isotopologues show unresolved X hyperfine structure due to magnetic hyperfine splitting in the ground state. The sensitivity and stability of FS-CRDS allow for quantitative sub-Doppler measurements of the hyperfine constants, even when the hyperfine splittings are much smaller than the Doppler width. Unlike saturation spectroscopy, this linear absorption technique can be applied to weak transitions and employed to quantitatively measure intensities and line shapes. This method may be an attractive approach for measuring unresolved hyperfine structure in excited electronic states.
翻译：Frequency-stabilized腔衰荡光谱法1Σg +←(FS-CRDS)是用来测量磁偶极子在b转换3Σg - O2(0,0)乐队。X 17 o-包含isotopologues显示未解决的超精细结构由于磁超精细分裂在基态的灵敏度和稳定性FS-CRDS允许定量sub-Doppler测量超精细的常量,即使超精细剥片比多普勒宽度小得多。与饱和光谱不同,这种线性吸收技术可以应用于弱转换和用来定量测量强度和线形状。这种方法可能是一个有吸引力的方法测量超精细结构尚未解决电子在激发态。
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10.Novel dose rate monitoring for intense radiation fields based on cavity ring-down laser spectroscopy
作者：
Tomita , H. , Watanabe , K. , Kawarabayashi , J. , Iguchi , T. , Nariyama , N.
论文集英文名称：Nuclear Science Symposium Conference Record, 2004 IEEE
来源数据库：美国电气和电子工程师协会会议论文
DOI：10.1109/NSSMIC.2004.1462312
原始语种摘要：For dose rate monitoring in high level radiation fields, we have proposed a concept of novel dose rate monitoring method based on high sensitive laser absorption spectroscopy technique for radiation induced chemical species. The yield of the species depends on the intensity of the radiation field. The dose rate of the radiation field, therefore, can be derived from concentrations of the species. We have adopted cavity ring-down spectroscopy, which is an ultra high sensitive laser absorption spectroscopy, to measure trace quantities of
radiation induced chemical species. We have tried proof-of-principle experiments through the off-line/on-line measurement of 60Co gamma-ray induced NO2 in the air. From these results, it has been verified that the present cavity ring-down measurement is quite useful as a dose rate monitoring method for intense radiation fields with high radiation resistance, where the expected performance will be the detectable range of the absorbed dose rate is from 0.5 to 2 × 103 Gy(air)/s with the time resolution of about 30 s. View full abstract。
翻译：在高水平辐射剂量率监测领域,我们已经提出了一个新颖的概念基于高剂量率监测方法灵敏的激光吸收光谱技术对辐射诱导化学物种。物种的产生取决于辐射场的强度。因此,剂量率的辐射场可以来自物种的浓度。我们采用了腔衰荡光谱法,这是一个超高灵敏的激光吸收光谱,测量微量辐射诱导化学物种的数量。我们试图证明性实验通过离线/在线测量60 co伽马射线诱导空气中二氧化氮。从这些结果,验证,目前测量腔衰荡非常有用作为强烈的辐射剂量率监测方法领域具有高辐射抗性,在预期的性能将会吸收剂量率的检测范围从0.5到2×103 Gy(空气)/ s的时间分辨率大约30年代。完整的抽象视图。
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