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实验五 PowerPoint PPT Presentation


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实验五. 离子色谱法测定水中的阴离子. 实验目的. 1. 了解离子色谱分析的基本原理及操作方法 2. 掌握离子色谱法的定性和定量分析方法. 实验原理. 离子色谱( Ion Chromatography , IC )是色谱法的一个分支,它是将色谱法的高效分离技术和离子的自动检测技术相结合的一种分析技术。离子色谱法以离子交换树脂为固定相,电解质溶液为流动相,通常采用电导检测器来进行检测。

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实验五

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Ion ChromatographyIC

NaHCO3-Na2CO3Br-NO3-SO42-

R-HCO3+MX RX+MHCO3

R


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861

KBrK2SO4; NaNO3

Na2CO3NaHCO3H2SO4

0.45m5S/cm


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l

Metrosep A supp42504.0mm i.d.

Metrohm MSM+853CO2

NaHCO3-Na2CO3l mL/min

20L


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2IC Net2.3l mL/min30 min

3Filll mLInject2

41.00 mL2.00 mL4.00 mL6.00 mL8.00mL5l0 mL,2

50.45m2


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