All Documents
Application notes, tech tips, and other documents related to the LI-7825.
| Summary | ||
|---|---|---|
| Using the LI-7825 and Smart Chamber to determine the carbon isotope ratio (δ13C) of soil CO2 respiration | This application note provides instructions for using the LI-7825 CO2 isotope gas analyzer with the Smart Chamber (8200-01S) to determine the source carbon isotopic ratio (δ13C) of soil-respired CO2. | application note |
| Using the LI-Integrator app | The LI-Integrator app is a simple Windows application that can compute area under the curve with data from LI-COR analyzers, including the LI-8xx series and LI-78xx series analyzers. | application note |
| Mobile measurement of fugitive gas emissions | Application note describing techniques to collect and visualize methane concentration data associated with either multiple fixed locations or while walking/driving | application note |
| Measuring gas concentrations of small air samples with LI-COR Trace Gas Analyzers | This application note describes how to determine the CH4, CO2, or N2O gas concentration in small samples. | application note |
| Replacing the pump | Instructions for installing a replacement pump in the LI-78xx series Trace Gas Analyzers | install guide |
| Using the reduced flow rate kit 7800-113 | Describes how to install the reduced flow rate kit, which can reduce the nominal flow rate from 250 sccm to about 70 sccm (firmware versions 2.0.25 and newer). | install guide |
| LI-7815 CO2 Isotopes /NH3 Trace Gas Analyzer Instruction Manual | Instruction manual for the LI-7815. | manual |
| Methodological advancements for stable carbon isotope measurement of dissolved inorganic carbon using tunable diode laser absorption spectrometers | Poster presented at EGU 2026 that describes methodological advancements from an effort to integrate the LI-COR LI-7825 carbon isotope analyzer with a DIC measurement system (LI-5300A). | poster |
| An alternative approach to determine source stable carbon isotope composition for closed-transient chamber measurements using TDLAS analyzers | Poster presented at EGU 2026 addressing recent generations of tunable diode laser absorption spectroscopy (TDLAS) gas analyzers that extend measurement capabilities, from reporting total concentration to separating stable isotopologues during soil chamber measurements. | poster |
| Real-time measurement of leaf-level mesophyll conductance (gm) from online carbon isotope discrimination using a new portable solution | Poster presented at ASPB that describes the integration of a LI-COR LI-6800 photosynthesis system with the LI-7825 CO2 isotopologue analyzer and present a novel concentration-dependent error (CDE) correction developed specifically for online TDLAS-based isotopologue measurements. This correction enables real-time determination of isotopic discrimination and calculation of gm directly on the LI-6800. | poster |
| Monitoring and downloading data from a remote Trace Gas Analyzer | An overview of settings used to remotely monitor and download data from a Trace Gas Analyzer | technical note |
| Avoiding water ingress in LI-COR Trace Gas Analyzers | This note describes several ways to prevent drawing water into the trace gas analyzer air inlet. | tech tip |
| Dealing with Daylight Saving Time | This tip advises on the use of daylight saving time with LI-COR products. | tech tip |