| abstract |
The present invention proposes the detection method of sodium benzoate in raw milk.The method includes：The pH value of the raw milk is adjusted using aqueous slkali, obtains prepare liquid；The prepare liquid with liquor ferri trichloridi is mixed, obtains reaction solution；And the color based on the reaction solution, determine whether contain sodium benzoate in the raw milk, wherein, based on raw milk described in 10mL, the dosage of the liquor ferri trichloridi is 2mL.The detection method of the present invention can accurately measure sodium benzoate content in raw milk, and easy to operate, quick. |