Method for testing liquid water content of plant
A method of determination and water content technology, applied in the field of analytical chemistry, can solve the problems of toxic solvents that are harmful, difficult to recycle, waste of resources, etc., and achieve the effects of low price, easy recycling, and resource saving
Inactive Publication Date: 2011-04-13
YUNNAN ACAD OF FORESTRY
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Problems solved by technology
[0003] In order to overcome the disadvantages of toxic solvents in the prior art, such as great harm, high cost, difficulty in recycling, and serious waste of resources, the present invention provides a non-toxic, harmless, low-cost, recyclable solvent, and accurate determination of plant water content. Method for Determination of Water Content in Plants
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[0019] A. According to the mass ratio of dry star anise: gum turpentine = 1:1, add 15 grams of dry star anise and 15 grams of gum turpentine to heater 1, while adding 3 to 4 explosion-proof boiling zeolite;
[0020] B. Put the lower end of the distillation tube 3 of the distillation receiving tube 4 on the inlet and outlet 2 of the heater 1 through the stopper 12, and add gum turpentine from the inlet and outlet 5 at the top of the distillation receiving tube 4 to the middle and upper part of the distillation receiving tube 4 in the distillation tube 3. Place the lower end of the condensing straight pipe 7 on the top of the distillation receiving pipe 4 through the stopper 11 under the upper port 5;
[0021] C. Place the heater 1 on the electric furnace, heat the dried star anise and gum turpentine to boiling, the generated steam rises through the distillation tube 3 into the condensing straight pipe 7, and the height of the steam rising is controlled to 1 / of the height of the cond...
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The invention provides a method for testing the liquid water content of a plant, wherein, the method is characterized in that gum turpentine is taken as solvent; steam which is generated by heating up a materiel and the solvent to be boiled enters into a condensation pipe; the stem is condensed to reflow into a receiving pipe; the step of heating is stopped after the reflow liquid in the receiving pipe is not increased; and the liquid water content of the plant can be calculated according to a prior equation after testing the volume of the reflow liquid. When testing the moisture of the platewith the invention, the solvent is nontoxic and harmless; the cheap gum turpentine is no harm to human health, is convenient to recycle, can greatly reduce the cost of the solvent during batch production, reduces unnecessary waste, and saves resource; and the method has high testing precision, exact liquid water content, and is suitable for testing the liquid water content of various plates, dried fruits, etc.
Description
Technical field [0001] The invention relates to a method for measuring water content, in particular to a method for measuring plant water content, and belongs to the technical field of analytical chemistry. technical background [0002] In plant extraction and plant component analysis, the determination of plant water content is often involved. Existing technical standards all use toxic, harmful and expensive organic chemical reagents such as toluene or xylene as solvents, which not only endanger human health and the surrounding environment, but also the used solvents are difficult to recycle, which has always caused plant extraction. The main reason for the high cost. Therefore, it is absolutely necessary to improve the existing technology. Summary of the invention [0003] In order to overcome the disadvantages of toxic solvents in the prior art, such as high harm, high cost, difficulty in recycling, and serious waste of resources, the present invention provides a non-toxic, h...
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IPC IPC(8): G01N25/56
Inventor 宁德鲁耿树香尹晓兵张雨张艳丽陈海云李勇杰廖永坚肖良俊
Owner YUNNAN ACAD OF FORESTRY