The relative role of soil type and tree cover on water storageand transmission in northern headwater catchments科學家應用LGR液態水同位素分析儀在北部水源集中區域監測土壤類型與植被覆蓋類型對水的存儲和傳輸的影響Josie Geris,1* Doerthe Tetzlaff,1 Jeffrey McDonnell1,2 and Chris Soulsby11 Northern Rivers Institute, School of Geosciences, University of Aberdeen, Scotland, UK2 Global Institute for Water Security, National Hydrology Research Centre, University of Saskatchewan, Saskatoon, Canada Abstract:Soil water storage and stable isotopes dynamics were investigated in dominant soil–vegetation assemblages of a wet nor...
發布時間:
2015
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瀏覽次數：47
科學家應用LGR液態水同位素分析儀做同位素示蹤研究，研究證明，重碳酸鹽的修正可以提高被鈾污染的含水層的生物還原修復能力。Bicarbonate impact on U(VI) bioreduction in a shallow alluvial aquiferPhilip E. Longa , Kenneth H. Williamsa, James A. Davisa, Patricia M. Foxa, Michael J. Wilkinsb, 1,Steven B. Yabusakib, Yilin Fangb, Scott R. Waichlerb, Elena S.F. Bermanc, Manish Guptac, Darrell P. Chandlerd, Chris Murrayb, Aaron D. Peacocke, Ludovic Giloteauxf, Kim M. Handleyg, 2, Derek R. Lovleyh,Jillian F. Banfieldg a Lawrence Berkeley National Laboratory, Ber...
發布時間:
2015
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02
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瀏覽次數：34
Direct Analysis of δ2H and δ18O in Natural and Enriched Human Urine Using Laser-Based, Off-Axis Integrated Cavity Output Spectroscopy應用LGR液態水穩定同位素分析儀測量尿液中的氫氧同位素 Elena S. F. Berman *?, Susan L. Fortson ?, Steven P. Snaith ?, Manish Gupta ?, Douglas S. Baer ?,Isabelle Chery ?, Stephane Blanc ?, Edward L. Melanson §, Peter J. Thomson ⊥, and John R. Speakman ⊥∥? Los Gatos Research, 67 East Evelyn Ave, Suite 3, Mountain View California 94043, United States? Department of Ecology, Physiology...
發布時間:
2015
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01
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27
瀏覽次數：82
LGR的專利技術—利用腔增強激光吸收光譜法，記錄高吸收光譜，能夠精確的測量葡萄酒中的同位素比值。LGR擁有專業的光譜污染標識軟件（軟件測量植物水的精確數據在權威期刊上發表過），這使得儀器可以測量葡萄酒中的甲醇和乙醇污染物，從而得到可靠的同位素比值數據。 Laser-based measurements of 18O/16O stable isotope ratios (δ18O) in wine samples應用LGR液態水穩定同位素分析儀測量葡萄酒中的穩定同位素比值18O/16O和δ18O Manish Gupta1 J Brian Leen1 Elena Simone Franklin Berman1 Aldo Ciambotti21Los Gatos Research, Mountain View, CA, USA;2Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Centro di Ricerca per l’Enologia, Asti, Italy Abstract: Wine counterfeiting is an international, m...
發布時間:
2015
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01
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27
瀏覽次數：45
LGR 二氧化碳同位素分析儀最新應用：應用LGR二氧化碳同位素分析儀，通過測定腸易激綜合癥患者的呼出氣體中的13CO2和12CO2的同位素分子比率，可以對患者體內小腸細菌過度生長情況做出正確診斷Diagnosis of small intestinal bacterial overgrowth in irritable bowel syndrome patients using high-precision stable 13CO2/12CO2 isotope ratios in exhaled breath Gourab D. Banik,a Abhijit Maity,a Suman Som,a Chiranjit Ghosh,a Sunil B. Daschakraborty,b Sujit Chaudhuri,b Shibendu Ghoshc and Manik Pradhan*ad Hydrogen breath tests (HBT) are widely used for the d...
發布時間:
2015
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01
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22
瀏覽次數：50
Short-term e?ects of thinning, clear-cutting and stump harvesting on methane exchange in a boreal forest關于人類對北方森林的疏伐、濫砍濫伐和樹樁采伐對甲烷交換的短期影響 E. Sundqvist1, P. Vestin1, P. Crill2, T. Persson3, and A. Lindroth1 1Department of Physical Geography and Ecosystem Science, Lund University, Sweden 2Department of Geological Sciences, Stockholm University, Sweden 3Department of Ecology, Swedish University of Agricultural Sciences, Sweden原文鏈接：//www.biogeosciences-discuss.net/11/4637/2014/bgd-11-4637-2014.pdf
發布時間:
2015
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01
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05
瀏覽次數：53
Short-term e?ects of thinning, clear-cutting and stump harvesting on methane exchange in a boreal forest關于人類對北方森林的疏伐、濫砍濫伐和樹樁采伐對甲烷交換的短期影響 E. Sundqvist1, P. Vestin1, P. Crill2, T. Persson3, and A. Lindroth1 1Department of Physical Geography and Ecosystem Science, Lund University, Sweden 2Department of Geological Sciences, Stockholm University, Sweden 3Department of Ecology, Swedish University of Agricultural Sciences, Sweden 原文鏈接：//www.biogeosciences-discuss.net/11/4637/2014/bgd-11-4637-2014.pdfShort-term e?ects of thinning, clear-cutting and stump harve12f9fc...
發布時間:
2015
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01
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05
瀏覽次數：42
In Situ Measurement of Dissolved Methane and Carbon Dioxide in Freshwater Ecosystems by Off-Axis Integrated Cavity Output Spectroscopy應用LGR離軸積分腔輸出光譜技術原位測量淡水生態系統中的溶解甲烷和二氧化碳 Gonzalez-Valencia R1, Magana-Rodriguez F, Gerardo-Nieto O, Sepulveda-Jauregui A, Martinez-Cruz K, Anthony KW, Baer D, Thalasso F. AbstractA novel low-cost method for the combined, real-time, and in situ determination of dissolved methane and carbon dioxide concentrations in freshwater ecosystems was designed and developed. This method is based on the continuous sampling of water from a freshwater ecosystem to a gas...
發布時間:
2014
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12
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25
瀏覽次數：159
瑞士科學家應用LGR快速甲烷分析儀在空中測量甲烷氣體排放 奶牛是最能代表瑞士的動物，為這個國家生產奶酪，巧克力和牛奶，同時，也不斷排放一種溫室氣體：甲烷。甲烷對氣候變化的影響，是二氧化碳的20倍。現在，ABB旗下的LGR機載型快速甲烷分析儀為科學家們提供了可靠的工具來測量這一乳業副產品—甲烷。更多信息，請瀏覽：//www.abb.com/cawp/seitp202/35E15CA4261E301BC1257D16003F6A08.aspx //plus.google.com/9721608539/posts/9dWxQEj3qEq
發布時間:
2014
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07
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瀏覽次數：67
NOAA使用LGR的CO分析儀來提高主要氣體的參考標準，之所以選用LGR CO分析儀，是因為它有著更高的準確性、精確度和線性相關度。詳情請訪問網址：//www.wmo.int/pages/prog/arep/gaw/documents/CO_scale_X2014-notice.pdf或者查看如下附件： CO_scale_X2014-notice.pdfacc77c567b1f7446c11b5d76b0e55842.pdf (143.68 KB)
發布時間:
2014
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05
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29
瀏覽次數：69