HPLC Instrument

High-performance liquid chromatography (HPLC) (also called high-pressure liquid chromatography) is a solution-phase technique for fractionation of complex samples. Unlike standard column chromatography, HPLC is an active process in which materials are pumped at high pressure through the separation column, which contains the so-called “stationary phase” of the separation in the form of densely packed, often chemically functionalized beads. Once introduced to the column, it is the sample’s differential affinity for the solvent (“mobile”) and stationary phases that enables separation to occur, generally with sharper resolution than standard liquid chromatography. High performance liquid chromatographs can be used for analytical or preparative applications depending on the HPLC pump and the column size. HPLC columns are available in a variety of formats, including reverse phase, ion exchange, and size exclusion, which separate based on polarity, charge, and size, respectively.

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CompanyAgilent TechnologiesAgilent TechnologiesAgilent TechnologiesAgilent TechnologiesAgilent Technologies
Item1260 Infinity III Amino Acid Analysis System1260 Infinity III Bio-Inert Analytical-Scale LC Purification System1260 Infinity III LC System1260 Infinity III Method Development System1290 Infinity III 2D-LC System
Price
TypeHPLCInquireModular HPLC/UHPLCInquire2D-LC UHPLC
Detector(s)DAD, FLDInquireVWD, DAD, FLD, RID, ELSDInquireMultiple detector configurations
Flow RateInquire0.001-10 mL/min0.001-10 mL/min0.001-10 mL/minup to 5 mL/min
Max. Pressure600 bar600 bar600 bar (8700 psi)600 bar1300 bar
DescriptionComplete automated HPLC amino acid analysis system.Bio-inert HPLC purification system for large biomolecules, up to 600 bar.Robust analytical HPLC system with binary, quaternary, or isocratic pump options, up to 600 bar. InfinityLab Assist technology.Automated HPLC method development system with column and solvent switching.Two-dimensional LC UHPLC system for comprehensive separations and MS compatibility. Up to 1300 bar.
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