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Egyptian. In ancient Egyptian architecture as early as 2600 BC, the architect Imhotep made use of stone columns whose surface was carved to reflect the organic form of bundled reeds, like papyrus, lotus and palm.

The reversed-phase HPLC column is the most versatile and commonly used column type and can be used for a wide range of different types of analytes. Normal-phase HPLC columns have polar packing. The mobile phase is nonpolar and therefore usually an organic solvent such as hexane or methylene chloride.

Global High-Performance Liquid Chromatography (HPLC) Top Companies Merck KGaA. Bio-Rad Laboratories, Inc. Mitsubishi Chemical Corporation. Tosoh Corporation. General Electric (Cytiva Life Sciences)

The Ionic order developed in Ionia during the mid-sixth century B.C.E. and had been transmitted to mainland Greece by the fifth century B.C.E. Among the earliest examples of the Ionic capital is the inscribed votive column from Naxos, dating to the end of the seventh century B.C.E.

Ancient Persians and Egyptians, among others, used interior posts or columns to support the roofs of their buildings, which is known as “post-and-lintel” construction. In fact, the Egyptians modeled their columns after bundles of sticks used to support the reed-covered roofs of vernacular residences along the Nile.

Columns are frequently used to support beams or arches on which the upper parts of walls or ceilings rest. In architecture, "column" refers to such a structural element that also has certain proportional and decorative features.

The Romans adopted the use of columns from the Greeks. The Greeks used columns to support the structure of their temples and other architecture. However, Romans also used columns as decorations.

There a five different orders or styles of columns. The first three orders, Doric, Ionic, and Corinthian, are the three principal architectural orders of ancient architecture. They were developed in ancient Greece but also used extensively in Rome. The final two, Tuscan and Composite, were developed in ancient Rome.

Egyptian. In ancient Egyptian architecture as early as 2600 BC, the architect Imhotep made use of stone columns whose surface was carved to reflect the organic form of bundled reeds, like papyrus, lotus and palm.

The reversed-phase HPLC column is the most versatile and commonly used column type and can be used for a wide range of different types of analytes. Normal-phase HPLC columns have polar packing. The mobile phase is nonpolar and therefore usually an organic solvent such as hexane or methylene chloride.

Global High-Performance Liquid Chromatography (HPLC) Top Companies Merck KGaA. Bio-Rad Laboratories, Inc. Mitsubishi Chemical Corporation. Tosoh Corporation. General Electric (Cytiva Life Sciences)

The Ionic order developed in Ionia during the mid-sixth century B.C.E. and had been transmitted to mainland Greece by the fifth century B.C.E. Among the earliest examples of the Ionic capital is the inscribed votive column from Naxos, dating to the end of the seventh century B.C.E.

Ancient Persians and Egyptians, among others, used interior posts or columns to support the roofs of their buildings, which is known as “post-and-lintel” construction. In fact, the Egyptians modeled their columns after bundles of sticks used to support the reed-covered roofs of vernacular residences along the Nile.

Columns are frequently used to support beams or arches on which the upper parts of walls or ceilings rest. In architecture, "column" refers to such a structural element that also has certain proportional and decorative features.

The Romans adopted the use of columns from the Greeks. The Greeks used columns to support the structure of their temples and other architecture. However, Romans also used columns as decorations.

There a five different orders or styles of columns. The first three orders, Doric, Ionic, and Corinthian, are the three principal architectural orders of ancient architecture. They were developed in ancient Greece but also used extensively in Rome. The final two, Tuscan and Composite, were developed in ancient Rome.