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273943638

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[求助] Analysis of aromatic caramel

High performance liquid chromatography (HPLC) of sugars was performed
with a /~-Bondapak-NH 2 PE radial column, fitted to a Waters 6000A
instrument, and connected to a differential refractometer Waters R400.
5HMF analysis was achieved also by HPLC with a #-Bondapak C18 PE
radial column.
Capillary gas chromatography (Hewlett-Packard 5890) was performed in
a column (0.25 mm x 50 m) coated with Carbowax 20M (film thickness
0.20/~m). The identification was achieved by mass spectroscopy (Hewlett-
Packard MSD 5970--240°C, 70eV).
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273943638

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3楼2016-03-10 16:02:23
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sqlg888

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爱与雨下: 金币+1 2016-03-11 07:08:52
273943638(fjtony163代发): 金币+10, 代发 2016-04-10 22:59:05
fjtony163: 翻译EPI+1, 代发 2016-04-10 22:59:13
高效液相色谱法用Waters6000A型高效液相色谱仪连接差示折光检测器(Waters R400),并用μ-Bondapak -NH 2 PE(径向加压分段柱)分析糖,5-羟甲基糠醛也可用μ-Bondapak- C18 PE(径向加压分段柱)分析,
        毛细管气相色谱法用毛细管气相色谱仪(惠普5890),毛细管柱Carbowax 20M(膜厚0.2um) (0.25 mm x 50 m)进行分析,鉴定用质谱仪(惠普MSD5970--240℃,70 eV)进行
2楼2016-03-10 12:02:59
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