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茯苓君銅蟲 (初入文壇)
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[求助]
摘要翻譯
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| 本文介紹了用紫外分光光度法對休閑食品中防腐劑(苯甲酸、山梨酸鉀)含量進行測定,得出休閑食品中防腐劑的一般含量,進而對休閑食品中防腐劑含量的一般標(biāo)準(zhǔn)進行研究。苯甲酸、山梨酸鉀都是常見的防腐劑,且二者都是共軛的有機化合物,在近紫外光區(qū)都有較強的吸收,所以可以用紫外分光光度法對其測定。 |
鐵桿木蟲 (著名寫手)
Farmer

金蟲 (正式寫手)
| 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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