Making a standard curve sample to be tested was then placed in a quartz cuvette of 1cm, ethanol as a control, ultraviolet-visible photometer vitamin C and vitamin E standard sample
The samples to be tested are then placed in a 1cm quartz dish, with ethanol as a control, using uv visible photometers to measure vitamin C and vitamin E standard samples to make a standard curve
Then put the sample to be tested in a 1cm quartz cuvette, take ethanol as the control, and use the UV-vis photometer to measure the standard samples of vitamin C and vitamin E to make the standard curve.<br>