该产品已停产。请参考相对应的分析仪 G2201-i。

Picarro G2132-i 同位素分析仪能够精确测量甲烷（CH₄） 中稳定同位素 ¹³C-¹²C 的比率。甲烷既是一种宝贵的能源，也是一种温室气体。科学家们运用 Picarro G2132-i 分析仪精确测量 ¹³C-¹²C 的比率，能够确定甲烷是否是来自奶牛场、…

　　请注册观看我们关于水中¹⁷O-盈余 测量理论的网络研讨会的回放录像。来自华盛顿大学的 Eric Steig 教授将讨论他对南极洲西部冰原区 (WAIS Divide)冰芯研究。

　　现场网络研讨会还将邀请 Picarro 的 Kate Dennis 博士讨论 Picarro 水同位素分析系统的最新进展。

　　聆听 Picarro 的应用专家 Derek Fleck 分享他与加州大学伯克利分校最新的土壤通量应用合作，以及来自 Forerunner 研究所的 Nick Nickerson 分享土壤室技术的最新进展。

　　请注册观看本次网络研讨会的回放录像，其中包括 Richard Farrell 教授（萨斯喀彻温大学）和 Nabil Saad 博士（Picarro）。他们讨论了实际应用和基础技术，使 Farrell 教授能够使用 ¹⁵N 标记的植物残余物来划分残留物和残留物诱导的农田土壤 N₂O 排放。如果您有兴趣了解氮同位素如何应用于土壤和农业研究，或者对 Picarro…

　　请注册以观看本次网络研讨会的回放录像，其中包括 Picarro 研究员 Chris Rella 博士和应用专家 Caleb Arata。他们讨论了如何通过光腔衰荡光谱（CRDS）进行碳同位素测量，以及如何仔细校准可以提高测量的稳定性，以满足对大气应用的要求。如果您想了解更多有关如何优化校准和野外现场部署以测量环境大气 CO₂ 和 CH₄ 中的δ¹³C 的信息，这是适合您的网络研讨会！

　　本次网络研讨会由来自詹姆斯库克大学和查尔斯达尔文大学的Niels Munksgaard 博士以及 Picarro 公司Kate Dennis 博士主讲，将回顾膜萃取技术如何与海洋科学应用的 CRDS 相结合。特别是，我们将讨论新的 Picarro 连续水采样器，用于实时分析液态水中的δ¹⁸O 和δ²H。

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　　Picarro的光腔衰荡光谱（CRDS）分析仪用于高精度测量温室气体浓度和流量、痕量气体和稳定同位素，帮助全球各地的研究科学家、监管机构和行业领导者解决各种应用中的关键问题，包括：

• 空气质量
• …

　　本次网络研讨会将由来自 NASA / JPL 和加州理工学院的 Riley Duren 以及 Picarro 公司的 Graham Leggett 主讲，重点关注城市碳排放监测。Riley 将分享他在开展洛杉矶大都市项目及其研究目标方面的经验。Graham 将提供有关 Picarro 技术如何促进此类监测网络发展的信息，包括提供有关先进的 Picarro…

　　将由 Adam Subhas（加利福尼亚理工学院），Nick Rollins（南加州大学）和 Nabil Saad（Picarro）讨论使用 Picarro 光腔衰荡光谱和 Liaison 样品导入系统对离散样品进行准确、精密的总碳和δ¹³C 测量。Adam 和 Nick 将演示如何将 Picarro 碳同位素分析仪与 Automate FX 样气制备模块搭配用于测量海水 DIC 和固体碳酸盐，以及如何与元素分析仪搭配用于有机碳和 TOC 测量。Adam 还将分享方解石溶解实验的最新结果，这些实验旨在探讨全球碳循环以及海洋的饱和状态如何驱动大气二氧化碳的变化。你也可以在这里查看…

This product has been discontinued. 

For high throughput isotope analysis of water samples, the A0212 gives you the maximum number of real samples with minimal downtime

• Robust and reliable solution for high throughput applications
• Removable inlet liner ensures easy cleaning and service, less downtime
• Easy installation and…

Picarro G5310 气体浓度分析仪可同步精确测量氧化亚氮（N₂O）、灵敏度为万亿分率（ppt）的一氧化碳（CO）和灵敏度为百万分率（ppm）的水汽（H₂O），针对大气科学、空气质量和量化排放应用所产生的漂移可忽略不计。这款分析仪符合世界气象组织 (WMO) 和综合碳观测系统（ICOS）针对 N2O 和 CO 大气监测方面的性能要求。

• 同步连续测量 N₂O 和 CO
• 中红外光腔衰荡光谱（CRDS），实现高精度和低漂移分析
• 符合 WMO 和 ICOS 国际环境大气监测要求
• 具有水汽校正功能，自动报告干气摩尔分数

对于 N₂O 和 CO，5 秒和 5…

Supporting the most precise isotope analysis of water, the A0211 works with small volumes of water and for samples containing up to 20% salt.

• The vaporizer of choice for demanding research applications
• Excellent for methods development of tough samples, including bodily fluids and beverages
• Compatible with Picarro’s micro-combustion module for organics…

　　在本次网络研讨会重播中，了解 Picarro 的光腔衰荡光谱（CRDS）技术如何用于原位测量土壤气体通量。Nabil Saad 博士（Picarro）与 Jesper Christiansen 博士（哥本哈根大学）和 Nick Nickerson 博士（Eosense）一同参加讨论。Jesper 和 Nick 都拥有 PicarroG2508 气体浓度分析仪土壤通量系统的实际操作经验，…

　　如果你听到 Picarro 的任何人谈论关于全球碳、水和氮循环的全新见解 - “这事实上是地球上所有生命的基石” - 我们指的是 Picarro 的CRDS 技术提供的关于构成这些生命循环的分子的信息 - 尤其是它们的稳定同位素特征。

什么是同位素，你理解的稳定同位素是指什么？

　　同位素是同一化学元素的两种或多种原子之一，其原子具有相同数目的质子（即相同的原子序数），在核中具有不同数量的中子（不同的原子量）。稳定的同位素是不具有放射性的化学同位素 - 也就是说，它们不随时间自然衰变…

Automated cavity ring down spectroscopy was used to make continuous measurements of dissolved methane, nitrous oxide, and carbon dioxide in a coral reef lagoon for 2 weeks (Heron Island, Great Barrier Reef). Radon (²²²Rn) was used to trace the influence of tidally driven pore water exchange on greenhouse gas dynamics. Clear tidal variation was…

Floods frequently produce deoxygenation and acidification in waters of artificially drained coastal acid sulfate soil (CASS) wetlands. These conditions are ideal for carbon dioxide and methane production. We investigated CO₂ and CH₄ dynamics and quantified carbon loss within an artificially drained CASS wetland during and after a flood. We separated the…

Fugitive greenhouse gas emissions from unconventional gas extraction processes (e.g. shale gas, tight gas and coal bed methane/coal seam gas) are poorly understood due in part to the extensive area over which these emissions may occur. We apply a rapid qualitative approach for source assessment at the scale of a large gas field. A mobile cavity ring down spectrometer (Picarro G2201-…

The replacement of native species by invasive Phragmites australis in coastal wetlands may impact ecosystem processes including fluxes of the greenhouse gases (GHGs) carbon dioxide (CO₂) and methane (CH₄). To investigate differences in daytime CH…

We present a study of methane emissions from oil and gas producing well pad facilities in the Barnett Shale region of Texas, measured using an innovative ground-based mobile flux plane (MFP) measurement system, as part of the Barnett Coordinated Campaign. Using only public roads, we measured the emissions from nearly 200 well pads over 2 weeks in October 2013. The population of…

This study presents two methods for estimating methane emissions from a waste water treatment plant (WWTP) along with results from a measurement campaign at a WWTP in Valence, France. These methods, chamber measurements and tracer release, rely on Fourier transform infrared spectroscopy and cavity ring-down spectroscopy instruments. We show that the tracer release method is suitable…

A portable Wavelength Scanned-Cavity Ring-Down Spectrometer (Picarro L2120) fitted with a diffusion sampler (DS-CRDS) was used for the first time to continuously measure δ¹⁸O and δ²H of stream water. The experiment took place during a storm event in a wet tropical agricultural catchment in north-eastern Australia. At a temporal…

Temperature reconstructions across Heinrich stadials 1–3 are presented from an absolute-dated speleothem from Abaco Island in the Bahamas to understand the nature of climate change across these intervals in the subtropical Atlantic. The stalagmite carbonate record, dated by the U–Th geochronometry technique, includes higher δ¹⁸O and …

Insights into the effects of stormwater control measures (SCMs) on urban stream hydrology and in-stream processes are required to understand their effectiveness in mitigating the environmental problems associated with urbanization. Stable water isotopes were applied to understand processes occurring within SCMs and their effects on water sourcing in urban streams. We sampled ten…

The isotopic composition of near surface (or planetary boundary layer) water vapor on the south coast of Iceland (63.83°N, 21.47°W) has been monitored in situ between November 2011 and April 2013. The calibrated data set documents seasonal variations in the relationship between δ¹⁸O and local humidity (ppmv) and between deuterium…

Laser-based spectroscopic techniques, such as cavity ring-down spectroscopy (CRDS), provide a new, costeffective and more widely available approach to measure the oxygen isotope ratio in water molecules, H218O/H216O (d18O), and are used increasingly to measure d18O in the world’s oceans. Here, we present results froman interlaboratory comparison designed to evaluate the quality of…

Deuterium (dD) and oxygen (d18O) isotopes are powerful tracers of the hydrological cycle and have been extensively used for paleoclimate reconstructions as they can provide information on past precipitation,temperature and atmospheric circulation. More recently, the use of 17O excess derived from precise measurement of d17O and d18O gives new and additional insights in tracing the…

A correction for the undesirable effects of direct and indirect cross-interference from water vapour on ammonia (NH₃) measurements was developed using an optical laser sensor based on cavity ring-down spectroscopy. This correction relied on new measurements of the collisional broadening due to water vapour of two NH₃ spectral…

Describes development of and results obtained from an analyzer engineered by Picarro for measuring six important atmospheric contaminants (hydrogen sulfide, ammonia, nitrous oxide, carbon dioxide, water vapor and methane) that are of interest to researchers monitoring Concentrated Animal Feeding Operations (CAFOs).

Picarro has developed a field-deployable, real time, ambient gas monitor capable of measuring atmospheric levels of carbon dioxide, methane, hydrogen sulfide, and ammonia with parts-per-billion (ppbv) sensitivity and water vapor with parts-per-million (ppmv) sensitivity. Results from field trials of three different CO2 analyzers at Harvard, Penn State, and the NOAA facility in Boulder CO…

Description of field-deployable instrumentation that measures carbon dioxide, methane, and water vapor with both high-accuracy and high-precision would reduce the uncertainty in the determination of terrestrial sources and sinks of these dominant greenhouse gases.

Results presented from field trials at Woods Hole Oceanographic Institute and laboratory tests at INSTAAR of a newly available analyzer capable of performing continuous measurements of stable isotopes (δD and δ18O) of liquid water and / or water vapor samples.

Picarro has developed an isotope analyzer for lab and field measurements of carbon isotopes in CO₂ with the goal of allowing turnkey analysis to be done without the need for flask samples and complex IRMS methods. Here we present a description of the analyzer and its technology as well as recent results from two different collaborators who utilized the analyzer.

Describing work by CSIRO, CO2 CRC and Picarro to characterize sequestration site leaks using tracers and isotopes.

Describes the first field data taken by Oregon State University of Picarro's dual-species Eddy-Covariance analyzer.

Describes work by INSTAAR, NOAA & Picarro on both liquid water and water vapor measurements of stable water isotopes.

From the EGU 2009 General Assembly, describing measurements of edible oils and chocolates made with Picarro's iTOC-CRDS Isotopic Carbon Analyzer.

Describes specific design aspects of WS-CRDS-based analyzers and how these details result in ultra-stable field measurements.

Describes liquid water and water vapor isotope measurements with the Picarro isotopic water analyzer.

Describes field testing of Picarro's fast analyzer for eddy covariance flux measurements of greenhouse gases.

Describes results of laboratory testing and field campaigns with Picarro's flight-ready greenhouse gas analyzer.

Describes results from a Picarro N2O analyzer based in the mid-infrared spectral region.

The quantification of fugitive methane emissions from extended sources such as landfills is problematic due to the high temporal variability and spatial heterogeneity of the emission. Additionally, the relationship between the emission rate and the gas concentration at a given location is dependent on the meteorological conditions and local topography, preventing accurate quantification of…

Describes recent developments in GC-C-CRDS-based instrumentation applied to isotope measurements in large molecules.

Describes the flexibility of Picarro's fast water isotope analyzer for applications requiring very short sample-to-sample measurement times and shows data taken in lab and field measurements.