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Device for simulating vapour hydrogen and oxygen stable isotope fluxes and application thereof

A technology of stable isotope and simulation device, which can be used in measurement devices, instruments, scientific instruments, etc.

Inactive Publication Date: 2011-09-07
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Nonlinear response problem of instrument to water vapor δ 18 The influence of the observation precision of O and δD isotope fluxes is more serious
In particular, there are currently no commercial devices and methods for measuring atmospheric water vapor δ 18 δ of O and δD Isotope Infrared Spectrometer 18 Objective evaluation of O and δD isotope ratio and flux observation accuracy
In previous studies, see "Water Vapor Generator with Constant Hydrogen and Oxygen Stable Isotope Ratio and Its Application (Invention Patent Acceptance Number: 201010223551.6)", we have developed a water vapor δ 18 Calibration techniques and methods for O and δD isotope ratios, however, water vapor δ 18 Testing and Evaluation of O and δD Isotope Fluxes

Method used

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  • Device for simulating vapour hydrogen and oxygen stable isotope fluxes and application thereof
  • Device for simulating vapour hydrogen and oxygen stable isotope fluxes and application thereof
  • Device for simulating vapour hydrogen and oxygen stable isotope fluxes and application thereof

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Embodiment Construction

[0026] The following description only represents a specific embodiment of the present invention, and is only for further illustrating the present invention, rather than limiting the present invention.

[0027] The simulation device of water vapor hydrogen and oxygen stable isotope flux includes the following four parts: 1) water vapor sampling device, including two atmospheric water vapor sample sampling ports 111 and two calibration gas inlet pipes 112, two filters 12, two three Through electromagnetic valve 13, two gas buffer bottles 14, four flowmeters 15, barometer 16, needle valve 17 and bypass air pump 18; 2) water vapor analysis device, including four two-way electromagnetic valves 21, filter 23, water vapor delta 18 O and δD isotope analyzer 24, precise flow controller 25, sample air pump 26, relay 27 and data collector 28; 3) dry air manufacturing device, including air compressor 31, copper pipe 32, pressure valve 33, regenerative drying Device 35, pressure regulatin...

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Abstract

The invention relates to the fields of aerology, hydrology and ecology machinery, in particular providing a device for simulating vapour hydrogen and oxygen stable isotopes fluxes, wherein the device comprises a vapour sampling device, a vapour analysis device, a dry air manufacturing device and a balance vapour generator. The device can generate a vapour H2O concentration gradient and a vapour stable isotope H218O and HDO (semi-heavy water) concentration gradient according to requirements, so as to simulate the vapour delta 180 and delta D isotope fluxes. The device can be used for continuous or periodic performance evaluation or calibration of the atmospheric vapour delta 180 and delta D isotope ratio and fluxes.

Description

Technical field: [0001] The present invention relates to the fields of atmosphere, hydrology and ecology machinery, in particular to water vapor delta 18 Calibration of O and δD isotope ratios, water vapor δ 18 Simulators of O and δD isotope fluxes and their use. Background technique: [0002] Due to the existence of isotope effect, H 2 18 O, HD 16 O and H 2 16 O has become the best tracer of different forms of water movement among soil, vegetation, atmosphere and ocean, and has become an important research tool involving various disciplines such as atmosphere, hydrology and ecology. Since the relative abundance of light isotopes in nature is very high, while the relative abundance of heavy isotopes is very low, the isotope ratio is usually expressed by δ value, [0003] δ=(R / R VSMOW -1)×1000‰ (1) [0004] where R is 18 O / 16 O or D / H molar ratio, R VSMOW is a standard substance 18 O / 16 O or D / H molar ratio, usually adopts Vienna (Vienna) standard mean sea wat...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 温学发孙晓敏王建林于贵瑞李胜功
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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