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sanghuawei
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ÜòÜß¾ý: ½ð±Ò+3, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú, ¸øÁ¦£¬Ð»Ð»À²£¡ 2013-03-17 19:51:29
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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 |
3Â¥2013-03-17 18:27:25
hookhans
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- ×¢²á: 2013-01-25
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2Â¥2013-03-17 18:15:22














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