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| This article describes the general content of UV spectrophotometric determination of the content of the snack food preservatives ( benzoate , potassium sorbate ) obtained snack food preservatives , and thus the general standard of snack food preservative content . Benzoate , potassium sorbate are common preservative , and both conjugated organic compounds by ultraviolet spectrophotometry its determination in the near ultraviolet region has a strong absorption |
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