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填料形态
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孔径
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比表面积
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孔体积
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碳含量
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封端
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PH范围
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RP-8e
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整体化
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2μm, 13nm
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300m2/g
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1ml/g
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11.0%
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是
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2~7.5
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RP-18e
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整体化
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2μm, 13nm
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300m2/g
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1ml/g
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18.0%
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是
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Si
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整体化
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2μm, 13nm
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300m2/g
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1ml/g
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------
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否
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色谱柱
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Chromolith® Performance RP-18 endcapped, 100-4.6 mm (Cat. No. 1.02129)
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流动相
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A: Methanol (LiChrosolv® Cat. No. 1.06007)
B: 0.1% TFA in water (LiChrosolv® Cat. No. 4.80112) |
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梯度
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0.0 min 100% B, 1.0 min 100% B ,10 min 80% B
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流速
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2 ml/min 检测: UV 282 nm
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温度
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Ambient 进样量: 5 µl
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样品
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1.2,4,5-Trihydroxyphenalalanine
2. Levodopa 3. Methyldopa 4. Dopamine 5. Carbidopa 6. 3,4-Dihydroxyphenylaceticacid 7. 3-o-Methylcarbidopa |
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125 µg/ml
235 µg/ml 160 µg/ml 190 µg/ml 175 µg/ml 185 µg/ml 105 µg/ml |
色谱柱
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Chromolith® Performance RP-8 endcapped, 100-4.6 mm
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流动相
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A: Acetonitrile B: 20mM NaH2PO4 pH 2,5
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梯度
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0.0 min 2%A, 0.5 min 18%A ,8.5 min 18%A
9.1 min 32%A, 16 min 32%A,
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流速
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1 ml/min 检测: UV 220 nm
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温度
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Ambient 进样量: 5 µl
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样品
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1. Malic acid
2. Succinic acid
3. Glutaric acid
4. 3,4-Dihydroxy-cinnamic acid
5. 4-Hydroxy-cinnamic acid
6. Sorbic acid
7. Benzoic acid
8. 2-Hydroxybenzoic acid
9. Cinnamic acid
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0,92 mg/mL 1,70 mg/mL 1,20 mg/mL 0,02 mg/mL
0,03 mg/ml 0,20 mg/mL 0,04 mg/mL 0,15 mg/ml 0,04 mg/mL |