Introduction

Since its introduction by Porath in 1975, immobilized metal ion affinity chromatography (IMAC) has developed into a robust and versatile tool. The number of uses is large and includes the isolation of metal-binding compounds from sea water, separation of enantiomeric forms of amino acids, tetracycline removal from animal products and protein purification. This article will focus on its application to protein purification, where it relies on the ability of certain amino acid side chains to form coordinative interactions with immobilized metal ion chelate complexes. As a chromatographic method it falls somewhere between biospecific affinity chromato-graphy and ion exchange chromatography. The evolution of the technique, current tools and some specific technical details are discussed.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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