Chromatography System features a modular design.

Press Release Summary:



B-680 System is designed for samples from 1 mg to 50 g. Base system consists of separation column and eluent pump. Input components include gradient former for mixing binary ingredients with linear or stepped profile, injection valve for direct application up to 5 mL, sample loop for 2 to 20 mL volumes, and 100 mL sample chamber. Separation components include glass columns and reciprocating pump with integrated pulse dampening.



Original Press Release:


Buchi Modular Chromatography B-680 System For Liquid Sample Prep Offers Marked Cost And Operational Advantages


Buchi Analytical, Inc., a leading worldwide manufacturer of equipment and systems for laboratory analysis, has announced availability of a new four color brochure on their modular design Chromatography B-680 System for applications that range from basic to more advanced (or fully automated) preparative liquid chromatography.

The literature features the B-680S System which was specifically conceived for samples from 1 mg to 50 g. The base B-680 System consists of a separation column and eluent pump - a simple configuration that is fully operational yet highly cost effective. The system's separation column can be packed by the user and be used repeatedly to save time and make sample prep easier.

A wide range of modular system components are also available for various input, separation and output requirements, and can be added as prep needs change or grow and budget allows. Input components include a gradient former for mixing binary ingredients with a linear or stepped profile, injection valve for direct application up to 5 mL, sample loop for 2 to 20 mL volumes, 100 mL sample chamber and "Prep Elut" dry application column for complex and sparingly soluble samples. Separation components include a powerful reciprocating pump with integrated pulse dampening for increased reproducibility and Buchi glass columns for virtually any separation requirement. Output components include filter photometers or spectrophotometers for detecting UV/VIS-active substances, a differential refractometer for determination of refractive indices, recorder for measured detector values, peak detector, and fraction collector.

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