Detection method applied to membrane separation and membrane transparent liquid

Abstract

The invention discloses a detection method which is used for making a filtering membrane transparent in the process of performing inspection and detection by using a membrane separation technology in fields of medical science, biology, environtology and the like and is applied to membrane separation and membrane transparent liquid. According to the detection method applied to the membrane separation, the membrane transparent liquid is added into the filtering membrane in the process of detecting ingredients entrapped by the filtering membrane, so that the filtering membrane is in the transparent state; the filtering membrane has the performance of a transparent material, and the prepared filtering membrane is in the nontransparent or semitransparent state; and an error of the refractive index of the membrane transparent liquid and the refractive index of the material of the filtering membrane is within + / -10 percent. By the membrane transparent liquid, the filtering membrane becomes transparent, so that substances which are adhered to the filtering membrane can be observed and counted directly.

Description

technical field [0001] The invention relates to a membrane separation detection method and a membrane transparent liquid for making a filter membrane transparent in the fields of medicine, biology, environmental science and the like during the inspection and detection process. Background technique [0002] Membrane separation refers to the method of separating the components in the liquid material by using the pressure difference as the driving force, using the membrane as the separation medium, and relying on the selectivity of the membrane; including filtration membranes, ultrafiltration membranes, etc. For example, if the filter membrane is used as the separation medium, by applying a certain pressure difference on both sides of the filter membrane, the substances whose volume is smaller than the pore size of the filter membrane in the component of the raw liquid will pass through, while the substances in the component of the raw solution whose volume is larger than the po...

AI Technical Summary

Problems solved by technology

In many experiments, it is necessary to observe and count the concentrated substances, but in the existing detection experiments, due to the non-transparent or translucent filter membrane, it is necessary to directly observe and count the substances concentrated on the filter membrane. difficult or even impossible

For example, in the process of tuberculosis testing, membrane separation can be used to concentrate Mycobacterium tuberculosis, and the Mycobacterium tuberculosis concentrated by membrane separation adheres to the filter membrane. It becomes difficult to observe and count Mycobacterium tuberculosis; another example is the air quality detection experiment, which generally uses membrane separation to concentrate suspended solids, and the concentrated suspended solids adhere to the filter membrane, but because the filter membrane is not transparent, resulting in It is impossible to directly count the suspended solids concentrated on the filter membrane. The existing counting method is: wash the filter membrane with suspended solids in an alkaline solution, and wash the suspended solids from the filter membrane to the alkaline solution. , and then count the suspended matter in the alkaline solution, and finally calculate the air quality related data. Using existing methods to detect air quality is not only cumbersome but also inaccurate

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