Stable water isotope tracing through hydrological models for disentangling runoff generation processes at the hillslope scale

x-Peer Reviewed Literature/

Hillslopes are the dominant landscape components where incoming precipitation is transferred to become groundwater, streamflow or atmospheric water vapor. However, directly observing flux partitioning in the soil is almost impossible. Hydrological hills-lope models are therefore being used to investigate the involved processes. Here we report on a modeling experiment using the Catchment…

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Detection of simulated leaks from geologically stored CO2 with 13C monitoring

x-Peer Reviewed Literature/

Precise methods for the detection of geologically stored CO2 within and above soil surfaces are an important component of the development of carbon capture and storage (CCS) under terrestrial environments. Although CO2 leaks are not expected in well-chosen and operated storage sites, monitoring is required by legislation and any leakage needs to be quantified…

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Airborne characterization of smoke marker ratios from prescribed burning

x-Peer Reviewed Literature/

A Particle-into-Liquid Sampler – Total Organic Carbon and fraction collector sys-tem was flown aboard a Twin Otter aircraft sampling prescribed burning emis-sions in South Carolina in November 2011 to obtain smoke marker measure-ments. The fraction collector provided 2min time-integrated off-line samples for car-bohydrate (i.e., smoke markers levoglucosan, mannosan, galactosan) analysis by…

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Drought-Tolerance of Wheat Improved by Rhizosphere Bacteria from Harsh Environments: Enhanced Biomass Production and Reduced Emissions of Stress Volatiles

x-Peer Reviewed Literature/

Water is the key resource limiting world agricultural production. Although an impressive number of research reports have been published on plant drought tolerance enhancement via genetic modifications during the last few years, progress has been slower than expected. We suggest a feasible alternative strategy by application of rhizospheric bacteria coevolved with plant roots in harsh…

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On The Oxygen and Hydrogen Isotope Composition of Silage Water

x-Peer Reviewed Literature/

Silage is an important dietary water source that influences the oxygen and hydrogen isotopic composition of domestic herbivores and their products. Silage sampled fresh from the silo had18O- and 2H-depleted tissue water when compared with fresh pasture grass sampled around midday during the silage-making seasons. During exposure in the feed bunk, silage water…

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Trimethylamine emissions in animal husbandry

x-Peer Reviewed Literature/

Degradation of plant material by animals is an important transformation pathway in the nitrogen (N) cycle. During the involved processes, volatile reduced alkaline nitro-gen compounds, mainly ammonia (NH3) and aliphatic amines such as trimethylamine (TMA), are formed. Today, animal husbandry is estimated to constitute a main source of aliphatic amines into the atmosphere with TMA…

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Hydrology and pore water chemistry in a permafrost wetland, Ilulissat, Greenland

x-Peer Reviewed Literature/

Hydrological and geochemical processes controlling the pore water chemistry in a permafrost wetland, with loam overlain by sphagnum peat, were investigated. The vertical distributions of dissolved Cl, and of pore water δ18O, appeared unrelated to ion freeze-out and isotope ice-water fractionation processes, respectively, dismissing solute freeze-out as a main control on the water…

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Hydrochemistry of the Hot Springs in Western Sichuan Province Related to the Wenchuan

x-Peer Reviewed Literature/

Hydrogeochemistry of 32 hot springs in the western Sichuan Province after the Wenchuan  8.0 earthquake was investigated by analyzing the concentrations of cation and anion and the isotopic compositions of hydrogen and oxygen. The water samples of the hot springs were collected four times from June 2008 to April 2010. Hydrogeochemical data indicated the water samples can be…

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Composition of hydrothermal fluids and mineralogy of associated chimney material on the East Scotia Ridge back-arc spreading centre

x-Peer Reviewed Literature/

The East Scotia Ridge is an active back-arc spreading centre located to the west of the South Sandwich island arc in the Southern Ocean. Initial exploration of the ridge by deep-tow surveys provided the first evidence for hydrothermal activity in a back-arc setting outside of the western Pacific, and we returned in 2010 with a remotely operated vehicle to precisely locate and sample…

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Biodegradation measurements confirm the predictive value of the O:C-ratio for biochar recalcitrance

x-Peer Reviewed Literature/

Suitable predictors of degradability are sought to support the identification of biochars with large potential to increase C sequestration in soils. We determined the biodegradation of 9 chars from hydrothermal carbonization and pyrolysis in two agricultural soils. The 200- and 115-day degradation correlated strongly with the O:C- and slightly with the H:C-atomic ratio of 9 and 14 biochars…

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Airborne emission measurements of SO2 , NOx and particles from individual ships using a sniffer technique

x-Peer Reviewed Literature/

A dedicated system for airborne ship emission measurements of SO2, NOx and particles has been developed and used from several small aircraft. The system has been adapted for fast response measurements at 1 Hz, and the use of several of the instruments is unique. The uncertainty of the given data is about 20% for SO2 and 24% for NOx …

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Multiscale observations of CO2, 13CO2, and pollutants at Four Corners for emission verification and attribution

x-Peer Reviewed Literature/

There is a pressing need to verify air pollutant and greenhouse gas emissions from anthropogenic fossil energy sources to enforce current and future regulations. We demonstrate the feasibility of using simultaneous remote sensing observations of column abundances of CO2, CO, and NO2 to inform and verify emission inventories. We report, to our knowledge, the first ever…

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CO2, CO, and CH4 measurements from tall towers in the NOAA Earth System Research Laboratory's Global Greenhouse Gas Reference

x-Peer Reviewed Literature/

A reliable and precise in situ CO2 and CO analysis system has been developed and deployed at eight sites in the NOAA Earth System Research Laboratory's (ESRL) Global Greenhouse Gas Reference Network. The network uses very tall (> 300 m) television and radio transmitter towers that provide a convenient platform for mid-boundary-layer trace-gas sampling. Each analyzer has…

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Calibrated high-precision 17O-excess measurements using cavity ring-down spectroscopy with laser-current-tuned cavity resonance

x-Peer Reviewed Literature/

High-precision analysis of the 17O / 16O isotope ratio in water and water vapor is of interest in hydrological, paleoclimate, and atmospheric science applications. Of specific interest is the parameter 17O excess (Δ17O), a measure of the deviation from a‾linear relationship between 17O / 16O and…

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Microwave extraction–isotope ratio infrared spectroscopy (ME-IRIS): a novel technique for rapid extraction and in-line analysis of δ18O and δ2H values of water in plants, soils and insects

x-Peer Reviewed Literature/

 

RATIONALE

Traditionally, stable isotope analysis of plant and soil water has been a technically challenging, labour-intensive and time-consuming process. Here we describe a rapid single-step technique which combines Microwave Extraction with Isotope Ratio Infrared Spectroscopy (ME-IRIS).

METHODS

Plant, soil and insect water is extracted into a dry air stream by…

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The effect of dissolved oxygen on N2O production by ammonia-oxidizing bacteria in an enriched nitrifying sludge

x-Peer Reviewed Literature/

Dissolved oxygen (DO) is commonly recognized as an important factor influencing nitrous oxide (N2O) production by ammonia-oxidizing bacteria (AOB). However, it has been difficult to separate the true effect of DO from that of nitrite, as DO variation often affects nitrite accumulation. The effect of DO on N2O production by an enriched nitrifying sludge, consisting of…

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Isotope-ratio infrared spectroscopy: a reliable tool for the investigation of plant-water sources?

x-Peer Reviewed Literature/

  • Stable isotopes are extensively used as tracers for the study of plant-water sources. Isotope- ratio infrared spectroscopy (IRIS) offers a cheaper alternative to isotope-ratio mass spectroscopy (IRMS), but its use in studying plant and soil water is limited by the spectral interference caused by organic…
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Picarro 分析仪型号与所测分子

Flyer/
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G2311-f CO2 + CH4 + H2O 双模式高精度温室气体浓度分析仪

Data Sheet/
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CM-CRDS 燃烧模块 高精度碳同位素分析仪

User Manual/
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G2508 N2O + CH4 + CO2 + NH3 + H2O 高精度气体浓度分析仪

Data Sheet/
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PI5310 – The Ultimate Solution for Set-and-Forget Atmospheric N2O and CO Monitoring

PI5310 – 大气 N2O 和 CO 监测的解决方案

Blog/

在全球致力于理解和应对气候变化的过程中，全球各地的网络正在监测温室气体（GHGs）。Picarro 分析仪凭借其独特的高精度 CRDS 技术，被广泛应用于包括所有欧洲综合碳监测系统（ICOS）大气主题中心（ATC）网络在内的许多监测网络中。随着 PI5310 氧化亚氮（N2O）和一氧化碳（CO）分析仪的推出，Picarro 提供了符合并超越世界气象组织（WMO）兼容性目标和 ICOS 规格要求的 N2O 和 CO 大气监测的最佳解决方案。

为什么要监测N2O 

二氧化碳（…

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PI2103 氨气 (NH3) 高精度气体浓度分析仪

Data Sheet/
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G2201-i 二氧化碳 ( CO2 ) 和甲烷 ( CH4 ) 高精度碳同位素分析仪

Data Sheet/
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董事会 - Cloned

Basic page/

Alex Balkanski

Picarro 总裁兼首席执行官

Alex Balkanski 是一位卓越的长期行业领导者，在提高收入和利润方面有着丰富的经验，同时也获得了客户满意度的认可。在 2013 年 11 月加入 Picarro 担任总裁兼首席执行官之前，Alex 是 Benchmark 的管理合伙人，并担任 Picarro 董事会成员。Alex 曾经领导 C-Cube 和 DiviCom，这两家公司推动了 MPEG 标准在消费电子和广播领域占据主导地位。Alex 于 1988 年创立了 C-Cube。1994 年，他将公司成功上市，并于 1998 年策划了 C-Cube 对 DiviCom 的收购。此前，他是 Ambarella（AMBA），Decru（被 Network Appliance 收购），Entrisphere（…

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董事会 - Cloned

Basic page/

Alex Balkanski

Picarro 总裁兼首席执行官

Alex Balkanski 是一位卓越的长期行业领导者，在提高收入和利润方面有着丰富的经验，同时也获得了客户满意度的认可。在 2013 年 11 月加入 Picarro 担任总裁兼首席执行官之前，Alex 是 Benchmark 的管理合伙人，并担任 Picarro 董事会成员。Alex 曾经领导 C-Cube 和 DiviCom，这两家公司推动了 MPEG 标准在消费电子和广播领域占据主导地位。Alex 于 1988 年创立了 C-Cube。1994 年，他将公司成功上市，并于 1998 年策划了 C-Cube 对 DiviCom 的收购。此前，他是 Ambarella（AMBA），Decru（被 Network Appliance 收购），Entrisphere（…

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阎

Team/

阎磊

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阎

Team/
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范

Team/
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旭

Team/
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晓静

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The use of environmental isotopes for event monitoring at an overthrusted karst aquifer in the Dinarides, north-western Croatia

Presentation/
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关于 Picarro

Basic page/

Picarro 是一家领先的温室气体（GHG）浓度、痕量气体和稳定同位素的测量解决方案提供商；解决方案可用于许多科学应用中，以及能源和公共事业市场。

Picarro现已获得ISO 9001:2015认证！

光腔衰荡光谱

我们的专利技术光腔衰荡光谱法（CRDS）是所有 Picarro 仪器和解决方案的核心，可以检测 ppb 级别或更低浓度的目标分子。

科学仪器

我们的 Picarro 气体分析仪和系统组合使世界各地的科学家能够测量我们呼吸的空气、饮用的水和我们种植的土壤中的温室气体、痕量气体和稳定同位素。…

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Picarro Chosen by California for First State-Level Greenhouse Gas Emissions Measurement Network

Press Release/

Sunnyvale, Calif.‚ February 3, 2010 - îThe California Air Resources Board (CARB) has purchased seven Picarro gas analyzers as part of the Board's efforts to quantify emissions of the greenhouse gases (GHGs) in California. The Picarro analyzers will be used by CARB to measure methane emissions as part of the fulfillment of the Board's mandate under California State Law AB 32. Signed by…

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Picarro: Greenhouse Gas Measurements? There's an App for That

Press Release/

Sunnyvale, Calif.‚ - January 20, 2010‚ - Picarro, Inc., the maker of the world's highest performing and easiest to use gas analyzers now offers full iPhone-based support and remote capability for all of its devices. Picarro's gas analyzer technology measures a variety of greenhouse gases including CO2 and Methane. Key customers include the…

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Picarro Introduces Fully Automated and Integrated System for Bulk 13C Analysis

Press Release/

Picarro CM-CRDS Reduces the Time and Cost of Isotopic Analysis in Food Safety & Authentication, Botanical Origin, Plant Science, Soil Science and Pharmaceutical Quality Control Applications

AGU Meeting, San Francisco, Calif. (Booth #229)‚ December 15, 2009‚ Picarro, Inc., the maker of the world's highest performing and easiest to use gas analyzers, today…

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Picarro Announces New Field-Ready, Ultra-Sensitive Trace Gas Measurement Instrument

Press Release/

Sunnyvale, Calif., September 1, 2005 - Picarro, Inc., a provider of lasers and laser-based solutions for life science, environmental and industrial process monitoring applications announced today the introduction of the ESP-1000 for ultra-sensitive trace gas measurement. The ESP-1000 is the first commercially available product that captures the full benefits of a revolutionary technology…

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Picarro Funded by EPA to Develop Toxic Pollutant Monitor

Press Release/

U.S. EPA funds development of a field-instrument to measure acrolein

Sunnyvale, CA, Feb. 6, 2006 - Picarro, Inc., a manufacturer of high performance lasers and laser-based instruments, announced that it has been awarded a Phase I SBIR contract by the Environmental Protection Agency (EPA) to develop instrumentation for source and ambient detection of acrolein. The instrument to be…

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Picarro ships next generation ammonia monitor ESP-1000 achieves better than 1ppb detection of ammonia in ambient air

Press Release/

Sunnyvale, CA, Mar. 8, 2006 - Picarro, Inc., a manufacturer of high performance lasers and laser-based instruments, announced that it has begun commercial shipments of its next generation ammonia measurement instrument. The instrument, the ESP-1000, is based on Picarro's patented Cavity Ring Down Spectroscopy (CRDS) and achieves better than 1 part-perbillion detection of ammonia in ambient…

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Picarro Announces General Availability of Envirosense 3000I Multi-Species Atmospheric Monitor

Press Release/

Unrivaled accuracy, precision and stability help scientists observe and understand the earth's carbon cycle

Sunnyvale, CA, August 31, 2007 - Picarro, Inc., leading manufacturer of high-performance trace gas analyzers based on patented Cavity Ring-Down Spectroscopy (CRDS) technology today announced the general availability of the EnviroSense 3000i atmospheric monitor.

…

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Picarro and Instrumatic A/S Announce Distribution Agreement

Press Release/

Sunnyvale, CA and Ry, Denmark, October 11, 2007 - Picarro, leading manufacturer of high-performance trace gas analyzers, and Instrumatic A/S, leading manufacturer of advanced air pollution monitoring and control instrumentation, today announced the appointment of Instrumatic A/S as exclusive distributor of Picarro instruments for Denmark, Sweden and Norway.

Picarro's ultra-trace gas…

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Michael Woelk Joins Picarro as President and CEO

Press Release/

Sunnyvale, CA, November 13, 2007 - Picarro, a leading manufacturer of high-performance trace gas analyzers, today announced that Michael Woelk has joined the company as president and chief executive officer. Previously, he served as vice president of marketing at Varian, Inc., overseeing the company's scientific instrument business. Mr. Woelk will replace Bill Gignac, who will remain with…

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Picarro Technical Advisory Board Enhances Development Efforts

Press Release/

Sunnyvale, CA -- Picarro, Inc., a leading manufacturer of ultra-trace gas analyzers, has announced formation of a Technical Advisory Board (TAB) to further enhance the breadth of its internal expertise in engineering, physics, and chemistry. The board includes world-renowned experts in technologies most closely aligned with Picarro's products and applications.

Picarro gas analyzers…

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Picarro Gas Analyzer Pinpoints Types and Origins of CO2 Emissions

Press Release/

Sunnyvale, CA -- Picarro, Inc. has debuted a unique ultra-trace gas analyzer for precisely measuring Isotopic CO2, a marker of the type of CO2 and its origin. The instrument is based on cavity ring down spectroscopy (CRDS) technology exclusively licensed from Stanford University, and further enhanced at Picarro.

Picarro's CRDS analyzers deliver parts-per-…

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Picarro and OICO to Combine Technologies for Simplified Carbon Measurement

Press Release/

Santa Clara, CA - Picarro, Inc. and O.I. Corporation, d.b.a. O.I. Analytical, ("OI") (NASDAQ: OICO) today announced a joint agreement to pursue the development and marketing of a complete carbon-detection package for measuring carbon isotopes in environmental water and solid samples. The carbon detection package will integrate OI's total organic carbon (TOC) technology with Picarro's carbon…

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Picarro Launches New Isotopic Water Vapor Analyzer

Press Release/

Sunnyvale, CA -- Picarro, Inc. has introduced a unique gas analyzer to precisely measure oxygen and hydrogen isotopes in water vapor, important markers used in source of origin monitoring, and water cycle and climate studies. This new analyzer fills a previously unmet need for continuous, in situ, moisture and isotopic ratio measurements.

Since it can be deployed in the field as…

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Picarro Launches Ultrasensitive HF (hydrogen fluoride) Gas Analyzer

Press Release/

Sunnyvale, CA -- Picarro, Inc. has introduced the world's most sensitive real-time gas analyzer for trace HF detection, capable of measuring down to 10 parts per trillion (lower detection limit) in ambient air. In addition to its unprecedented sensitivity, the new analyzer operates with no requirement for frequent calibration and with complete immunity to cross-talk from any other ambient…

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Improved H2S (Hydrogen Sulfide) Gas Analyzer Provides 1 ppbv Sensitivity

Press Release/

Sunnyvale, CA -- Picarro, Inc. has introduced a new and improved analyzer for monitoring trace levels of H2S (hydrogen sulfide) in ambient air, with a lower detection limit of 1 ppbv that is an order of magnitude lower than earlier models. Based on the company's WS-CRDS (Wavelength-Scanned Cavity Ring Down Spectroscopy) technology, the new Picarro G1104 H2S analyzer…

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Picarro Strengthens Management Team with Two Key Additions

Press Release/

Sunnyvale, CA In response to robust growth in commercial sales of the company's unique trace gas analyzers, Picarro has strengthened its sales and marketing team with the addition of two new executives. Specifically, Iain Green Ph.D. has joined the company as Director of Marketing, while Mark Davis will serve in the role of Vice President of Sales.

Iain Green has over 10 years of…

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Picarro Isotopic CO2 Analyzer Wins Prestigious R&D 100 Award

Press Release/

Sunnyvale, CA - Picarro Inc. has won the coveted R&D 100 award for 2008 with their G1101-i Isotopic CO2 Analyzer. Dubbed the "Oscars of Invention" by the Chicago Tribune, the R&D Awards are presented annually by the editors of R&D, a unique, broad-spectrum publication covering technical innovations in industry, universities and government/national labs.…

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