Systems, indicator wipe product, and methods thereof used to detect the presence of cationic polymer residues on a surface are described. In various embodiments, the cationic polymer to be detected comprises a quaternary silane residual antimicrobial. The indicator wipe may comprise a woven, nonwoven, or double-knit fabric, cotton, functional cellulose, or open cell foam material substrate impregnated with an aqueous dye solution comprising a sulfonephthalein dye. The indicator wipe may be configured to differentiate between traditional monomer quaternary ammonium compounds and cationic polymers such as quaternary silane compounds used in residual antimicrobial coatings by color changes on the indicator wipe and by observing if cationic-dye complexes diffuse by chromatography on the indicator wipe.

Systems, indicator wipe product, and methods thereof used to detect the presence of cationic polymer residues on a surface are described. In various embodiments, the cationic polymer to be detected comprises a quaternary silane residual antimicrobial. The indicator wipe may comprise a woven, nonwoven, or double-knit fabric, cotton, functional cellulose, or open cell foam material substrate impregnated with an aqueous dye solution comprising a sulfonephthalein dye. The indicator wipe may be configured to differentiate between traditional monomer quaternary ammonium compounds and cationic polymers such as quaternary silane compounds used in residual antimicrobial coatings by color changes on the indicator wipe and by observing if cationic-dye complexes diffuse by chromatography on the indicator wipe.

Adsorbents can be structured for use in a wafer container microenvironment. The loading of these adsorbents can be tailored to the particular contaminants to be removed from the wafer container microenvironment. The loading can include adsorbents for one or more contaminants, the contaminants including acids, bases, condensable organic compounds, and/or volatile organic compounds. The adsorbent can further include a moisture removal material such as a molecular sieve. The contaminants to be removed can be determined by cleaning or staging conditions for the wafer container, testing of previous adsorbents used in processes.

Adsorbents can be structured for use in a wafer container microenvironment. The loading of these adsorbents can be tailored to the particular contaminants to be removed from the wafer container microenvironment. The loading can include adsorbents for one or more contaminants, the contaminants including acids, bases, condensable organic compounds, and/or volatile organic compounds. The adsorbent can further include a moisture removal material such as a molecular sieve. The contaminants to be removed can be determined by cleaning or staging conditions for the wafer container, testing of previous adsorbents used in processes.

According to one embodiment, an analysis method includes a first analysis and a second analysis. The first analysis detects a presence or absence of phthalates in a sample by irradiating ultraviolet light on a plate. The sample is developed on the plate by thin-layer chromatography. The second analysis detects a presence or absence of butyl benzyl phthalate in the sample by supplying a color reagent to the plate on which the sample is developed.

According to one embodiment, an analysis method includes a first analysis and a second analysis. The first analysis detects a presence or absence of phthalates in a sample by irradiating ultraviolet light on a plate. The sample is developed on the plate by thin-layer chromatography. The second analysis detects a presence or absence of butyl benzyl phthalate in the sample by supplying a color reagent to the plate on which the sample is developed.

A method of performing a thin layer chromatography comprises a step of providing a three-dimensional machine configured to move a rigid nozzle under control by a computer along a stationary adsorbent layer, the nozzle combines the ends of individual tubing carrying individually-controlled flows of eluent components, a step of individually operating a plurality of pumps for pumping individual eluent components through the respective tubing towards the rigid nozzle, a step of operating the three-dimensional machine for moving the rigid nozzle adjacent and along the outer surface of the adsorbent layer while continuing to pump individual eluent components, a step of operating a camera connected to the computer to observe a migration of the eluent front on the adsorbent layer, and a step of individually adjusting flow rates of individual pumps by the computer using a dynamic position of the eluent front as observed by the camera.

The invention generally relates to ion generation using modified wetted porous materials. In certain aspects, the invention generally relates to systems and methods for ion generation using a wetted porous substrate that substantially prevents diffusion of sample into the substrate. In other aspects, the invention generally relate to ion generation using a wetted porous material and a drying agent. In other aspects, the invention generally relates to ion generation using a modified wetted porous substrate in which at least a portion of the porous substrate includes a material that modifies an interaction between a sample and the substrate.

The invention generally relates to ion generation using modified wetted porous materials. In certain aspects, the invention generally relates to systems and methods for ion generation using a wetted porous substrate that substantially prevents diffusion of sample into the substrate. In other aspects, the invention generally relate to ion generation using a wetted porous material and a drying agent. In other aspects, the invention generally relates to ion generation using a modified wetted porous substrate in which at least a portion of the porous substrate includes a material that modifies an interaction between a sample and the substrate.

Provided in the present disclosure are a traditional Chinese medicine composition for treating novel coronavirus pneumonia, a preparation method, a detection method, and the use thereof. The traditional Chinese medicine composition is mainly prepared from the following raw materials in parts by weight: 250-400 parts of Citri reticulatae pericarpium, 100-200 parts of Atractylodis rhizoma, 100-200 parts of Magnoliae officinalis cortex, 200-300 parts of Glycyrrhizae radix et rhizoma, 200-300 parts of Agastache rugosus, 200-300 parts of Acori tatarinowii rhizoma, 250-330 parts of Jujubae fructus, and 100-200 parts of Zingiberis rhizoma recens. Further provided in the present disclosure are a preparation method and a detection method for the traditional Chinese medicine composition.