Method for detecting hair hydrolyzed soybean sauce
A technology for hair water and soy sauce, which is applied in chemical instruments and methods, luminescent materials, material excitation analysis, etc., can solve problems such as difficulty in distinguishing hair water and soy sauce, and achieves short detection time, low cost, and food safety. Effect
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[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0034] like figure 1 As shown, in this embodiment, the method for detecting hairy soy sauce includes seven main steps, and each step will be described in detail below.
[0035] 1. Preparation of 1,3,5,7-tetramethyl-8-phenyl-(2-maleimide)-boron difluoride dipyrromethane (TMPAB-o-M)
[0036] The synthetic route map of TMPAB-o-M is as follows image 3 As shown, the following combination image 3 The synthesis process of TMPAB-o-M is further described.
[0037] (1) First, 1,3,5,7-tetramethyl-8-phenyl-(2-nitro)-borondifluoride dipyrromethane (TMPB-o-N) was synthesized.
[0038] Accurately weigh 1.06g (7.0mmol) o-nitrobenzaldehyde, dissolve in 500mL dry CH 2 Cl 2 , under nitrogen protection, slowly drop 1.44mL (14.0mmol) 2,4-dimethylpyrrole while stirring, drop 1 drop of trifluoroacetic acid, seal, keep stirring overnight at 25°C unti...
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