今日足彩狗推荐预测

LICA United Technology Limited

服务热线: 13910499761 010-51292601
企业邮箱
应用支持 Application Support
News 应用支持

最新LGR稳定性同位素技术文献目录

日期: 2009-07-17
浏览次数: 238

 LGR是世界上最知名的激光痕量气体和稳定性同位素分析仪供货商。随着OA-ICOS技术日臻完善,为研究者带来了更大的方便,在以往很难测量的领域提供了测量的可能。

      因为性能优良,数据稳定,越来越得到用户的认可,目前广泛应用在碳水通量测定,大气痕量气体变化的测量,水文同位素研究,CO2/H2O稳定性同位素廓线测量和土壤CH4通量等方向的研究。在近两年发表了大量的文献,现将部分文献目录列出,共各位用户参考。

   

"High-Frequency Field Deployable Isotope Analyzer for Hydrological Applications"
Manish Gupta, Elena Berman, Chris Gabrielli, Tina Garland, J. McDonnell 
Water Resources Research, 2009 (in press)

"Methane fluxes during the initiation of a large-scale water table manipulation experiment in the Alaskan Arctic tundra"
Zona, D., W. C. Oechel, J. Kochendorfer, K. T. P. U, A.N. Salyuk, P.C. Olivas, S.F. Oberbauer, and D.A. Lipson
Global Biogeochem. Cycles (in press) doi:10.1029/2009GB003487

"Soil and plant contributions to the methane flux balance of a subalpine forest"
D. R. Bowling, J. B. Miller, M. E. Rhodes, S. P. Burns, R. K. Monson, and D. Baer
BGD, 2009, Vol. 6, pp. 4765-4801

"Water vapor 2H and 18O measurements using off-axis integrated cavity output spectroscopy"
P. Sturm, M. Barthel, S. Etzold, and A. Knohl
Geophysical Research Abstracts, Vol. 11, EGU2009-7825-1, 2009

"A groundwater isoscape (δD, δ18O) for Mexico"
L.I. Wassenaar, S.L. Van Wilgenburg, K. Larson, K.A. Hobson
Journal of Geochemical Exploration; doi:10.1016/j.gexplo.2009.01.001

"Large tundra methane burst during onset of freezing"
Mastepanov Mikhail; Sigsgaard Charlotte; Dlugokencky Edward J; Houweling Sander; Str?m Lena; Tamstorf Mikkel P; Christensen Torben R
Nature 2008; 456(7222): 628-30

"Freezing tundra gives off methane"
Torben Christensen
http://environmentalresearchweb.org/cws/article/research/36977

"Water vapor isotopes measurements at Mauna Loa, Hawaii: Comparison of laser spectroscopy and remote sensing with traditional methods, and the need for ongoing monitoring"
Noone, D.; Galewsky, J.; Sharp, Z.; Worden, J.
American Geophysical Union, Fall Meeting 2008, abstract #A23C-0309

"Development and Validation of an Isotopic Water Vapor Analyzer for Rapid Measurements of 18O/16O and D/H in Ambient Air"
Dong, F.; Gupta, M.; Owano, T.; Fellers, R.; Baer, D.
American Geophysical Union, Fall Meeting 2008, abstract #B23C-0447

"High-Precision Laser Spectroscopy D/H and 18O/16O Measurements of Microliter Natural Water Samples"
G. Lis, L. I. Wassenaar, and M. J. Hendry
Anal. Chem., 80 (1), 287-293, 2008

"High Resolution Pore Water δ2H and δ18O Measurements by H2O(liquid)-H2O(vapor) Equilibration"
L.I. Wassenaar, M.J . Hendry, V.L. Chostner, and G.P. Lis
Environmental Science and Technology, 2008, 42 (24), pp 9262–9267

"Development of a rapid on-line acetylene sensor for industrial hydrogenation reactor optimization using off-axis integrated cavity output spectroscopy"
Le, L.D. , Tate, J.D. , Seasholtz, M.B. , Gupta, M., Owano, T., Baer, D., Knittel, T., Cowie, A., Zhu, J.
Applied Spectroscopy, Volume 62, Issue 1, January 2008, Pages 59-65

"A compact and stable eddy covariance set-up for methane measurements using off-axis integrated cavity output spectroscopy"
D. M. D. Hendriks, A. J. Dolman, M. K. van de Molen, and J. van Huissteden
Discussion EGU Atmos. Chem. Phys. Discuss., 7, 11587–11619, 2007

"Can hydrogen isotopic ratios in plant lipids provide a quantitative proxy for aridity?"
Feakins S., Sessions A.
Pacific Climate Workshop
2007 May 13-16; Asilomar State Conference Grounds, Pacific Grove, CA

"Can lipid D/H ratios be a quantitative proxy for aridity?"
Feakins S., Sessions A.
ACS Summer Meeting, 2007 August 19-23, Boston MA

"Memory effects in compound-specific D/H analysis by GC-P-IRMS"
Wang, Y.; Sessions, A. L.
AGU Fall Meeting, 2007 December 10-14, Abstract B13A-0889

"Laser spectroscopic analysis of stable isotopes in natural waters: a low-cost, robust technique for the use of environmental isotopes in hydrological and climate studies"
Aggarwal, P. K.; Ahmad, T.; Groening, M.; Gupta, M.; Owano, T.; Baer, D.
American Geophysical Union, Fall Meeting 2006, abstract #H51D-0504

"Quantitative determination of the Q(1) quadrupole hydrogen absorption in the near infrared via off-axis ICOS"
M. Gupta, T. Owano, D. S. Baer and Anthony O’Keefe
Chemical Physics Letters, Volume 418, Issues 1-3, 25 January 2006, Pages 11-14

"In-Situ Isotope Ratiometer for Hydrothermal Effluent Analysis"
Owano, T.; Gupta, M.; Baer, D.; Provencal, R.; Ricci, K.; OKeefe, A.; Flynn, M.; Holland, P.
American Geophysical Union, Fall Meeting 2005, abstract #OS33C-1495

"Off-axis cavity ringdown spectroscopy: application to atmospheric nitrate radical detection"
James D. Ayers, Randy L. Apodaca, William R. Simpson, and Douglas S. Baer
Applied Optics, Vol. 44, No. 33, 20 November 2005

"Cavity-enhanced quantum-cascade laser-based instrument for carbon monoxide measurements"
R. Provencal, M. Gupta, T. G. Owano, D. S. Baer, K. N. Ricci, A. O'Keefe, and J. R. Podolske
Appl. Opt. 44, 6712-6717 (2005)

"Novel Instrumentation for Atmospheric Measurements of Carbon Dioxide and Stable Isotopes of Carbon Dioxide"
Baer, D.; Gupta, M.; Owano, T.; Ricci, K.; O'Keefe, A.
American Geophysical Union, Fall Meeting 2004, abstract #B23A-0924

"Quantitative Detection of Singlet O2 by Cavity-Enhanced Absorption"
Skip Williams; Manish Gupta; Thomas Owano; Douglas S. Baer; Anthony O’Keefe; David R. Yarkony; Spiridoula Matsika
Optics Letters, Volume 29, Issue 10, pp. 1066-1068 (2004).

"Quantitative determination of singlet oxygen density and temperature for Oxygen-Iodine Laser Applications"
M. Gupta, Thomas Owano, Douglas S. Baer, Anthony O’Keefe and Skip Williams
Chemical Physics Letters, Volume 400, Issues 1-3, 11 December 2004, Pages 42-46

"Multiplex integrated cavity output spectroscopy of cold PAH cations"
Ludovic Biennier, Farid Salama, Manish Gupta and Anthony O'Keefe
Chemical Physics Letters, Volume 387, Issues 4-6, 1 April 2004, Pages 287-294

"Sensitive absorption measurements in the near-infrared region using off-axis integrated-cavity-output spectroscopy"
D.S. Baer, J.B. Paul, M. Gupta, A. O'Keefe
Applied Physics B: Lasers and Optics, Vol. 75, Numbers 2-3, September 2002

"Cavity-enhanced spectroscopy in optical fibers"
M. Gupta, Hong Jiao, and Anthony O'Keefe
Optics Letters, Vol. 27, Issue 21, pp. 1878-1880

"Recent advances in off-axis integrated cavity output spectroscopy"
D.S. Baer, M. Gupta, A. O’Keefe and J. Paul
Diode Lasers and Applications, A. Fried, ed., Proc. SPIE (2002).

"Ultrasensitive Absorption Spectroscopy with a High-Finesse Optical Cavity and Off-Axis Alignment"
Joshua B. Paul, Larry Lapson, and James G. Anderson
Applied Optics, Vol. 40, Issue 27, pp. 4904-4910

"Broadband Ringdown Spectral Photography"
J. J. Scherer, J. B. Paul, H. Jiao, and A. O’Keefe
Appl. Opt. 40, 6725-6732 (2001)

"cw integrated cavity output spectroscopy"
Anthony O’Keefe, James J
Chemical Physics Letters, vol. 307, issue 5-6, pp. 343-349

"Integrated cavity output analysis of ultra-weak absorption"
Anthony O’Keefe
Chemical Physics Letters 293 (5-6), 331-6 (1998).

"Ringdown Spectral Photography"
James J. Scherer
Chemical Physics Letters Volume 292, Issues 1-2, 31 July 1998, Pages 143-153

"Cavity ring down dye laser spectroscopy of jet-cooled metal clusters: Cu2 and Cu3"
A. O’Keefe, J.J. Scherer, A.L. Cooksy, R. Sheeks, J. Heath, and R.J. Saykally
Chemical Physics Letters, vol. 172, pages 215-218, (1990)

"Trace Gas Analysis by Pulsed Laser Absorption Spectroscopy"
Anthony O’Keefe and Olive Lee
American Laboratory, December, 1989

"Cavity ring-down optical spectrometer for absorption measurements using pulsed laser sources"
Anthony O'Keefe and David A.G. Deacon
Review of Scientific Instruments (ISSN 0034-6748), vol. 59, Dec. 1988 


News / 相关新闻 More
2026 - 09 - 16
研究背景植物胁迫会引起叶片细胞结构和色素组成的改变,但现有检测方法难以兼顾无损分析、组织分层与光谱表征。传统视觉和RGB成像灵敏度有限,生化与分子检测具有破坏性,常规高光谱成像缺乏深层结构信息,而高分辨率显微技术又难以同步获取连续光谱。因此,亟需构建兼具高空间分辨率、高光谱分辨率和光学层析能力的成像平台,实现完整叶片结构与色素变化的同步、分层和无损检测。近日,新加坡南洋理工大学与曼尼帕尔高等教育学院曼尼帕尔理工学院的研究人员开发了一套结构光照明高光谱显微镜。该系统将结构光照明显微成像的光学层析能力与高光谱成像的精细光谱识别能力结合,可对完整叶片开展分层、无损的结构与色素表征。相关成果发表于《Information Processing in Agriculture》。图1.结构光照明高光谱显微镜实验方案。研究方法研究团队构建了结构光照明高光谱显微镜(SIHM),以超连续谱激光器为光源,通过...
2026 - 09 - 16
在“双碳”目标与海洋负排放(mCDR)备受关注的今天,近海贝类的碳汇功能是学术界讨论的焦点。然而,现有研究多聚焦于滤食性双壳贝类(如牡蛎)在有外源营养输入下的碳汇贡献,而对于无持续外源营养输入的自然或养殖场景,以及不同食性底栖动物(如沉积食性的泥螺)的角色,仍存在关键认知空白。近日,中国海洋大学董双林老师团队在《Journal of Environmental Management》发表研究论文,通过为期120天的中宇宙(Mesocosm)围格实验,揭示了太平洋牡蛎(Crassostrea gigas)与泥螺(Bullacta exarata)在调节海洋碳固存方向上的显著差异。评价贝类碳汇,为什么不能只看“壳碳”?关于贝类能否形成碳汇,目前主要存在个体与生态系统两种评价视角。个体层面,贝类呼吸和钙化可能释放CO₂,仅以壳碳衡量固碳贡献并不充分;生态系统层面,滤食、营养盐排泄、生物沉积和收获...
2026 - 09 - 07
研究背景黍子是我国最早驯化的谷物之一,栽培历史超过1万年,至今仍是长城沿线地区的重要粮食作物。氮素直接影响黍子的生长、产量和籽粒品质,但过量施氮会降低肥料利用效率,并增加资源浪费和环境负荷。传统黍子叶片氮含量主要采用凯氏定氮法测定,虽然结果准确,但需要破坏性采样,且难以满足大田快速监测需求。无人机遥感与深度学习为作物氮素无损监测提供了新途径,但相关研究多集中于主粮作物,针对黍子的高精度估测方法仍较缺乏。近日,山西农业大学农业遗传资源研究中心王君杰老师团队在《Agronomy》发表研究,融合ASD冠层光谱、无人机RGB影像、植被指数和纹理特征,并结合机器学习与深度学习估算黍子叶片氮含量,为黍子氮素无损诊断和小杂粮表型监测提供了新的技术方法。 图1.实验区域、无人机影像和实验数据采集。(a) 中国山西省位置。(b) 山西省忻州市繁峙县位置。(c) 实验场地布局。(d) 使用ASD FieldS...
2026 - 08 - 31
研究背景干旱区森林的植物水文过程是区域水循环的重要组成部分,不仅影响群落结构、生态功能和生产力,也关系到区域物质与能量平衡。作为干旱生态系统最主要的水分输入,降水具有显著的季节差异和有限的时间可利用性。天山北麓针叶林是典型的寒温带森林,春夏降雨较为充沛,冬季寒冷漫长,降雪量较大且积雪持续时间较长,形成了独特的季节性水分供给格局。然而,在这一降水时空格局下,植物在生长季对夏季降雨与冬季来源水分的相对利用程度仍不清楚。基于此,新疆大学常顺利老师团队联合新疆生产建设兵团等团队,以天山北坡的异果小檗和黑果栒子为研究对象,借助稳定同位素技术,解析不同季节降水对土壤补给及灌木用水的贡献,为认识干旱区山地森林的水分利用策略及其对气候变化的响应提供了数据支撑。相关成果发表于《Journal of Hydrology: Regional Studies》。 图1.研究区及采样样地的位置。a为中国及天山山脉的...
关闭窗口】【打印
Copyright ©2018-2023 今日足彩狗推荐预测
犀牛云提供企业云服务

今日足彩狗推荐预测

地址:北京市海淀区安宁庄东路18号光华创业园5号楼(生产研发)
          光华创业园科研楼四层
电话:13910499761 13910124070  010-51292601
传真:010-82899770-8014
邮箱:info@li-ca.com
邮编:100085

 



 


 


  • 您的姓名:
  • *
  • 公司名称:
  • *
  • 地址:
  • *
  • 电话:
  • *
  • 传真:
  • *
  • 电子邮箱:
  • *
  • 邮政编码:
  • *
  • 留言主题:
  • *
  • 详细说明:
  • *
在线留言
关注我们
  • 官方微信
  • 官方手机端
友情链接:
X
1

QQ设置

3

SKYPE 设置

4

阿里旺旺设置

等待加载动态数据...

等待加载动态数据...

5

电话号码管理

  • 010-51292601
6

二维码管理

等待加载动态数据...

等待加载动态数据...

展开
XML 地图