Vanco Chromatography Medium
EPRUI Biotech has developed a vancomycin purification chromatography medium which is specially designed for high efficient separation and purification of Vancomycin. EPRUI vanco chromatography media is a spherical and monodisperse microspheres with precisely controlled particle size and optimized pore structure. EPRUI Vanco chromatography media provides excellent selectivity, high retention capacity, low back pressure, minimal elution volume, and high recovery yield of Vancomycin. In comparison with other vancomycin purification chromatography available in the market, EPRUI Vanco possesses much higher efficiency in removing dechlorovancomycin. EPRUI Vanco media is very stable in almost all aqueous solutions including NaOH (1 M) and HCl (1 M), and organic solv
Stevia Extraction Chromatography Media
Stevia is a perennial herb and all of the plant parts has strong sweet taste. Extracts of Stevia is low in calories and used as an excellent healthy substitute for sugar and artificial sweeteners. The crude extracts are typically purified by filtration, resin adsorption, de-coloration followed by multiple recrystallization. The resulting extracts are usually a mixture of Rebaudioside A (RA), Rebaudioside C (RC), Stevioside (STV), Dulcoside A (DA), and Steviobioside (STVB). It has been a challenge for the food industry to isolate single components from the extracts with purity higher than 95%. EPRUI stevia extraction chromatography media is designed for easy isolation and purification of Stevioside. The polymer microspheres have uniform particle size, optimized
Gel Permeation Chromatography
Gel permeation chromatography (GPC) is a type of size exclusion chromatography (SEC), that separates analytes on the basis of size. It is often necessary to separate polymers, both to analyze them as well as to purify the desired product.GPC systems and consumables are now also available from a number of manufacturers. EPRUI Biotech has developed monodisperse gel microspheres used for gel permeation separation of lipophilic polymers and hydrophobic molecules in the presence of organic solvents. The matrix of our gel permeation chromatography is styrene and divinylbenzne copolymer, which is nonporous transparent beads in dry form and will become porous network structure which has molecular sieve property after swelling in organic solvents. When the gel beads c
Anion Exchange Chromatography
SPE-SAX and SPE-WAX are used for the isolation and purification of acidic compounds in basic or neutral medium. Based on a mixed mode of anion ion exchange and hydrophobicity interaction with functional quaternary / tertiary amino groups, SPE-SAX and SPE-WAX can quickly and steadily recover acidic compounds from the samples for purification, for example, estrone, adenine, nucleosides, etc. Product Name Feature Strong Anion Exchange chromatography Mix mode sorbents with a strong anion exchange and reverse retention; Highly selective for acidic analytes , stable in organic solvents Weak Anion Exchange chromatography Weak anion exchange and reverse retention mechanism. For the retention and release of strong acidic analytes. Stable in organic solvent .
Protein A Affinity Chromatography
Protein A affinity chromatography medium by EPRUI is based on the monodisperse porous poly (methyl methacrylate) (PMMA) microspheres as the matrix, and genetically modified protein A as the ligand, which ensures its high affinity binding of monoclonal antibodies and Fc fragment containing recombinant proteins (macromolecules). Our protein A chromatography media has high mechanical strength and good pH stability. Even at a high flow rate, the beads still maintained a high dynamic binding capacity, meeting the demands from laboratory preparation to industrial production. 1. Highly uniform particle size EPRUI protein A affinity chromatography medium has highly uniform particle size distribution and precisely controlled pore structure, as shown in Fig. 1. 2
FLC for Fullerene Purification
Fullerenes as advanced materials has broad potential applications in various industries. Its unique cage structure leads to interesting and extraordinary magnetic, superconductive, optical and catalytic properties. However, the application of fullerenes has been restricted because of the difficulty in the synthesis and especially purification of fullerenes. EPRUI Biotech has designed and developed EPRUI-FLC chromatographic resin specifically for the isolation and purification of fullerenes. EPRUI-FLC resin is based on advanced polymerization technique and unique surface modification technology. Based on monodisperse resin microparticles with optimal pore structure and binding functional group, EPRUI-FLC is an ideal chromatography media for separation and purif
Sugar Analysis HPLC Phases
EPRUI Biotech develops a series of size controllable HPLC packing which is especially for the analysis and separation of carbohydrates including fruit juice containing organic acid, sugar alcohol, simple sugar, polysaccharide and so on. It is a kind of cationic exchange chromatography media which is prepared by sulfonating PS/DVB microspheres to make it hydrophilic following by chelating of various ions such as hydrogen(H+),calcium (Ca2+) and sodium (Na+). Ligand exchange is a preferred method for the chromatographic analysis and separation of many sugars and sugar alcohols due to the advantage of simply using water as eluent. In the process of ligand exchange, the negatively charged hydroxyl groups in carbohydrate molecules interact with the positively charg
HLB SPE
SPE-HLB sorbents are produced with a special polymerization technique. It is corrresponding to Water Oasis HLB or Phenomenex Strata X. They are reverse phase sorbents wettable by water with balanced hydrophilicity and hydrophobicity capable of satisfying most solid phase extrction needs. Monodisperse microspheres in SPE-HLB sorbents are made with outstanding ability to retain polar compounds. They are quite suitable for the isolation of compounds with none or medium polarity. Due to a large surface area, SPE-HLB has a very high adsorption capacity which not only effectively reduces flowthrough, but also substantially decreases the volume of eluent passing through a compact column thereby raising the elution stability and speed. It is suitable for separation a
Cation Exchange Chromatography
SPE-SCX and SPE-WCX sorbents are polymer microspheres with functional sulfate or carboxyl groups based on a mixed mode of cation ion exchange and hydrophobicity interaction, they are used to separate and analyze alkaline compounds such as amphetamines, melamine, chloropheniramine, phencyclidine, etc. Due to high surface area of the microspheres and ion exchange capacity of sulfate groups, SPE-SCX and SPE-WCX can effectively and steadily adsorb basic compounds, and retain them well in comparison with known products from the current leading companies. SPE-SCX and SPE-WCX sorbents hold the stability of the bonded phase across the entire pH range of 1 to 14 and greatly widen the conditions for separation exploration. Furthermore, SPE-SCX and SPE-WCX columns have
Silica Gel Chromatography
Silica gel chromatography packing is made of monodisperse porous silica microspheres with highly uniform particle size, perfect spherical morphology and optimized pore structure. Our silica gel chromatography media meets the requirements of high performance liquid chromatography (HPLC) analysis in the laboratory and preparative separations in industry scale. The monodisperse spherical porous silica gel has distinct advantages such as highly uniform particle size, perfect spherical morphology, outstanding mechanical strength, easy column packing, high column efficiency, good resolution, low back pressure and exceptional batch to batch reproducibility. It has already been widely used in analysis and separation of organic compounds, peptides, nucleic acids, antib
Reverse Phase Polymer Chromatography
EPRUI Biotech Co. Ltd. offers a new generation of reversed phase polymer chromatography media. Our reverse polymer chromatography media are made of highly crosslinked monodisperse polymer microspheres including highly crosslinked polystyrene divinylbenzen, polymethyl methacrylate, copolymers of PS/DVB and PMMA. With precise control of particle size, particle size distribution, specific surface area, pore size structure and surface functional groups, our monodisperse polymer chromatography packing has great properties including high resolution and loading capacity, strong rigidity, acid and base resistant, low back pressure, long lifetime and low non-specific adsorption. Our polymer based reverse phase chromatography packings have been widely used in high perfo
Affinity Chromatography Media
The metal chelating affinity chromatography media supplied by EPRUI Biotech is made up of highly crosslinked monodisperse polyacrylate microspheres. It is widely used in the purification of His-tagged recombinant proteins. The immobilized metal affinity chromatography resin provides exceptional binding capacity and performance for recombinant tagged protein purification. The first step of preparing metal chelating affinity chromatography media is forming a hydrophilic layer on the microspheres. Then, nickel ion (Ni2+) functional groups are chelated onto the hydrophilic layer. EPRUI’s affinity chromatography media consisting of chelating ligands charged with nickel ions are specifically designed to capture and purify histidine tagged proteins. High flow rate