2017年12月13日 · This feature allowed all packing equipment to be used in the packing process, including a slurry vessel, a height equivalent to theoretical plate (HETP) skid, and a media-handling unit (MHU).

The most used concept to evaluate the height of a packed column, which is related to separation efficiency, is the HETP (Height Equivalent to Theoretical Plate), defined by the following equation: in which Z is the height of the packed bed necessary to obtain a separation equivalent to N theoretical stages (Caldas and Lacerda, 1988).

2024年3月18日 · Explore height equivalent to a theoretical plate (HETP), its calculation, formula, and significance in chromatography for better analytical results.

For evaluating the column performance after packing, a column qualification test, often called "HETP and Asymetry test", is usually performed. This test consists of evaluating the distortion of a marker pulse injected after its residence time through the …

Schematic overview of the pulse test with calculations and definitions. Peak broadening is typically described as plate number N or as height equivalent to a theoretical plate (HETP). This concept is equivalent to a tanks-in-series model reflecting the number of equilibrium stages represented by the column.

2024年8月23日 · 琼脂糖基质的层析柱一般要求HETP （理论塔板高度）的数值小于5倍介质平均颗粒大小，且非对称因子在 0.8~1.8 之间（越接近于1越好），则说明装柱效果较好。

Use of the plate height, which is also known as the height equivalent to a theoretical plate (HETP), is acceptable practice in chromatography design even though it is based on a poor model of column operation. HETP is a measure of zone broadening; in general, the lower the HETP value, the narrower is the solute peak.

resolution of protein molecules during polish purification in downstream processing. Here, we investigate the effects of packing methods, packing solutions, compression fa. tor, resin slurry concentration, and bed height on the efficiency of packed columns.

The Bio-Rad process chromatography skid is self-contained and incorporates all the necessary components (pumps, valves, instruments), control cabinets (pneumatic electric), and the touch screen interface which to run the chromatography process.

hetp与塔径相关,塔径dn1200为界,一般hetp选取600mm,空塔视压降为零.效率自定.