The toroidal column using a zigzag pattern has been improved in both retention of the stationary phase and peak resolution. To further improve the retention of stationary phase and peak resolution, a series of novel geometric designs of tubing (plain, mid clamping, flattened, and flat twisted tubing) was evaluated for their performance in CCC. The results showed that the tubing, which was flattened vertically against the centrifugal force (vert-flattened tubing) produced the best peak resolution among them. Using vert-flattened tubing a series of experiments was performed to study the effects of column capacity and sample size. The results indicated that a 0.25 mL capacity column is ideal for analysis of small amount samples.

中文翻译：

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离心逆流色谱的新颖设计：II。之字形环形管新颖几何形状的研究


使用锯齿形图案的环形色谱柱在固定相保留和峰分辨率方面均得到了改进。为了进一步提高固定相的保留和峰分辨率，对一系列新颖的几何设计的管道（普通管、中间夹紧管、扁平管和扁平扭曲管）在 CCC 中的性能进行了评估。结果表明，克服离心力而垂直压扁的管（垂直压扁管）在其中产生了最佳的峰值分辨率。使用垂直扁平管进行了一系列实验来研究柱容量和样品大小的影响。结果表明，0.25 mL 容量的色谱柱非常适合分析少量样品。