A kind of method for measuring the pH value of plant body fluid outside the device

A plant and body fluid technology, applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve problems such as in-situ measurement and test instrument breakage, and achieve reliable test results, durable instruments, and high accuracy.
CN105352999BInactive Publication Date: 2018-02-16LINYI UNIVERSITY
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
LINYI UNIVERSITY
Publication Date
2018-02-16
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses an ex-situ determination method for the pH value of plant sap. The ex-situ determination method comprises the following steps: washing an air-dried or kiln-dried plant organ sample with tap water and deionized water five times respectively, then drying the plant organ sample in a drying box at 40 DEG C, then crushing the plant organ sample with pulverizer and carrying out screening with a 60-mesh sieve; accurately weighing 0.4 to 0.6 g of powder obtained in the previous step, placing the powder in a teflon crucible, then adding 2 to 5 mL of deionized water to allow the powder to be totally immersed in the deionized water and then carrying out standing and immersion for 30 to 60 min; and filtering out leachate and determining the pH value of the leachate by using a pH electrode so as to obtain the pH value of plant sap. The method provided by the invention overcomes the technical problem that the pH value of plant sap can only be determined in situ in an organ and provides technical guarantee for application of the pH value to research of fields like phytophysiology, plant nutriology and biogeochemistry.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for measuring the pH values ​​of body fluids of different organs outside the device. Background technique

[0002] In recent years, with the improvement and innovation of analytical technology, the methods for measuring pH value have been continuously introduced, including acid-base indicator method based on agar or glass powder, weak acid flux method, composite pH electrode method, fluorescence spectroscopy, confocal Laser scanning microscopy, microelectrode pH sensors and other methods. The establishment of these methods provides a good technical basis for the determination of the pH value of plant body fluid. At present, composite pH microelectrodes are commonly used to measure the pH value of plant body fluids in situ, but it is difficult to achieve in situ determination for some relatively thin or small organ samples such as leaves and stems, and some woody and hard plants are easy to cause the test The instrume...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More