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HEPES(7365-45-9) solution as buffer to detect polyhexamethylene guanidine content

The present invention relates to a method for detecting the content of an active ingredient of guanidine, and more particularly, to a method for detecting the content of polyhexamethylene guanidine. The solution was prepared by using a solution of HEPES(7365-45-9) as a buffer solution using a spectrophotometer or a colorimetric card as a detection device using a nano-gold solution with negatively charged and particle size of 13-35 nm as an indicator. Hexamethylene guanidine content. The invention has high sensitivity and strong anti-interference ability. The invention can also detect the concentration of polyhexamethylene guanidine in the sample according to the color card, and the national standard can not be detected.



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