The progress of open tubular suppressed ion chromatography is reviewed from a broad perspective. Then a suppressed open tubular ion chromatography system, composed mostly of commercial components, is described: A splitless gradient-capable nanopump providing eluent delivery in the 10–1000 nL/min regime, a 7-nL injector integral to the pump, an anion exchange column based on a 25 µm i.d. poly(ether ether ketone) (PEEK) capillary, and an on-column admittance detector. The membrane suppressor was custom fabricated. Good gradient separation of seven common anions in 9 min is demonstrated using a manually prepared hydroxide eluent.

中文翻译：

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使用PEEK开管式色谱柱的基于梯度纳米泵的抑制离子色谱

从广泛的角度回顾了开放式管状抑制离子色谱的进展。然后描述了一个抑制性的开放式管状离子色谱系统，该系统主要由商业组件组成：不分离梯度的纳米泵，提供10-1000 nL / min的洗脱液输送，泵中内置的7 nL进样器，阴离子交换色谱柱基于25 µm内径的聚醚醚酮（PEEK）毛细管和柱上导纳检测器。膜抑制器是定制制造的。使用手动制备的氢氧化物洗脱液可在9分钟内很好地分离7种常见阴离子。