Plant 13C isotope labeling device

Abstract

The invention discloses a plant 13C isotope labeling device, and relates to the technical field of isotope labeling. The plant 13C isotope labeling device comprises a labeling device body, an air blower, an infrared gas analyzer, a gas absorption device, a temperature meter, a pressure adjusting device, a temperature control device and a gas generating device. The labeling device body comprises atee pipe, a four-way pipe, a PVC (polyvinyl chloride) pipe, a polyethylene sleeve bag and a polyethylene film, the tee pipe is connected with the four-way pipe through the PVC pipe in an inserted manner, the surfaces of the tee pipe, the four-way pipe and the PVC pipe are connected with the inside of the polyethylene sleeve bag, and the polyethylene film is fixedly mounted at the bottom of the polyethylene sleeve bag, the device is provided with the tee pipe, the four-way pipe and the PVC pipe, the height of the labeling device is equal to three meters, plants reaching up to 2.7 meters in a field can be successfully labeled, the labeling device solves the problem that a common labeling device can only label short potted plants, and the application range of a 13C isotope labeling techniqueis widened.

Description

technical field [0001] The invention relates to the technical field of isotope labeling, in particular to a plant 13 C isotope labeling device. Background technique [0002] Natural carbon isotopes include 12 C. 13 C and 14 C, where 12 C. 13 C is a stable isotope, 14 C is radioactive. The most abundant carbon isotope in nature is 12 C, while 13 C and 14 The abundance of C is very low. Because stable isotopes have the advantages of stable physical properties and no ionizing radiation, they are stable 13 C isotopic techniques have been widely used to study the turnover of soil organic carbon. In the prior art, 13 C isotope labeling includes natural labels and artificial labels. Natural markers are generally used in field in situ experiments, which require the replacement of C3 and C4 plants, and require a relatively long replacement time (in years); artificial markers can choose appropriate reagents, and carry out markers under fully controllable conditions. The...

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a method for carrying out a relatively tall woody plant 13 C isotope-labeled device, which solves the disadvantages that existing devices can only label relatively low plants (such as herbaceous plants), and broadens the scope of 13 Application of C isotope labeling technology

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