Rapid detection method for tobacco flavors and fragrances with different blending amounts in production through similarity method
A detection method, a technology of tobacco flavor, applied in the direction of measuring devices, analysis materials, material excitation analysis, etc.
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[0027] 1. Instruments, reagents and instrument working conditions
[0028] 1) Instruments and reagents
[0029] Instrument: microscopic confocal Raman spectrometer (XploRA, French HORIBA company)
[0030] Reagents: chloroauric acid, sodium citrate, tobacco flavors and fragrances (provided by China Tobacco Zhejiang)
[0031] 2) Raman test conditions
[0032] Choose 785nm laser, laser power 1.6mW, number of grating notches 1200 / mm, spectral range: 550~1500cm -1 10-20 spectra were collected for each sample, and the average value was taken.
[0033] 3. Synthesis of Gold Nanoparticles
[0034] Firstly, 200 mL of a 0.01 wt % chloroauric acid solution was boiled, and then 1.5 mL of a 1 wt % sodium citrate solution was quickly added at one time. The solution gradually changed from light yellow to colorless, then to black, and finally to reddish brown, and the whole process of discoloration took about 3 minutes. Afterwards, the solution was kept boiling for 30 min and cooled for ...
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