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hanye_168鐵蟲 (初入文壇)
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[求助]
糖漿特征物分析(主要針對蜂蜜摻假,小麥糖漿和木薯糖漿),求教! 已有1人參與
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| 我是檢測關(guān)于蜂蜜摻假的,對于新的糖漿,需要找出其特征物,進液質(zhì),發(fā)現(xiàn)峰分不開,出峰時間才2分鐘左右,如何可以把峰分開,希望可以給些建議,謝謝! |

木蟲 (小有名氣)
專家顧問 (知名作家)
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專家經(jīng)驗: +1438 |
銀蟲 (小有名氣)
專家顧問 (知名作家)
從事NMR和有機化合物結(jié)構(gòu)鑒定
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專家經(jīng)驗: +1123 |
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Honey carbohydrates were analyzed by high performance anion exchange liquid chromatography with constant potential amperometric detection at a nickel-chromium (80:20) alloy electrode. The sugars are oxidized by a surface catalyzed process proposed to involve Ni(II)/Ni(III) oxyhydroxides, which are formed at approximately 0.500 V (Saturated Calomel as reference electrode). The honey content of glucose, fructose, and sucrose is determined in less than 15 minutes per sample. The high sensibility achieved with this alloy electrode allowed for the analysis of disaccharides and oligosaccharides usually present in honey as minor components. The analysis of these carbohydrates may be useful for the determination of the floral origin of honey. |
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