Micro-fluidic chip and detection system for detecting formaldehyde and pH value of textile

Abstract

The invention provides a micro-fluidic chip and detection system for detecting formaldehyde and the pH value of a textile. The micro-fluidic chip is connected with a micro pump and comprises a cover plate layer and a channel layer. The cover plate layer is matched with the channel layer. The channel layer comprises a chip base body and a sample cell. The sample cell is connected with a formaldehyde detection cell and a pH value detection cell through a micro fluid channel. The formaldehyde detection cell and the pH value detection cell are connected with a pump valve interface. The pump valve interface communicates with the micro pump. By means of the micro-fluidic chip, the formaldehyde and the pH value of the textile can be detected at the same time by one-time sample feeding, and in addition, due to the fact that detection reagent is fixed into the detection cells on the chip in advance, the detection reagent does not need to be provided in the operation process; the operation procedure is simplified; detection time is shortened; professional personnel are not needed; and the micro-fluidic chip and matched portable equipment are used together, and on-site quick detection can be achieved.

Description

technical field [0001] The invention relates to the technical field of formaldehyde and pH value detection, in particular to a microfluidic chip and a detection system for textile formaldehyde and pH value detection. Background technique [0002] As a common cross-linking agent for cellulose fiber resin finishing, formaldehyde is widely used in pure or blended products or some silk products, thereby endowing textiles with functions such as shrink resistance, wrinkle resistance, non-ironing and easy decontamination. However, during the wearing or use of textiles with excessive formaldehyde content, some uncrosslinked or hydrolyzed free formaldehyde will be released, causing damage to human health. [0003] The pH value refers to the residual acid-base content in the fabric, which is generally required to be in the neutral range. It is also necessary to check the pH value. If the pH value exceeds the standard, its harm is no less than that of formaldehyde. Because the surfac...

AI Technical Summary

Problems solved by technology

[0005] The current national standard for textile detection methods has great advantages in terms of analysis limit, accuracy and reproducibility, but the detection steps are cumbersome and require high professionalism, making it difficult to quickly detect formaldehyde and pH in textiles on site content, and the detection of formaldehyde and pH value in textiles is separate, which is not conducive to the development of automatic and rapid production.

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