1 Chemical and biochemical preparations for scientific and research purposes, namely, affinity chromatography chemicals, biomaterials, namely, sepharose, oligosaccharides, polysaccharides, agarose, chitosan, cellulose, rayon, rayon triacetates, cellulose nitrates, cellulose acetates, hydroxyethylcellulose, cellulosebutyrates, celluloseacetatebutyrates, ethylvinylacetate copolymers, polysulphones, exopy resins, silicones, cellulose ethers, cellulose triacetates, carboxymethylcellulose, lipids, carrageenanes, fibrinogen, starch, collagen, proteins, peptides, polyamino acids, polyhydroxyalkanoates, pectic acid, actinic acid, fibrin, casein, carboxymethylsulphate, albumin, hyaluronic acid, heparan sulphate, heparin, chondroitinesulphate, dextran, B-cyclodextrines, gummi arabicum, guar, gelatine, collagen, collagen-N-hydroxysuccinimide, phospholipids, poly-fatty-acids, polylactones, polyglycolic acid, polylactides, polyglycolides, polycarboxylic acids, poly-dioxanones, polyanhydrides, polyether, polyester, polyterephtalates, polycarbonates, polyglutamate, polyorthoesters, polypyrrolidones, polylalcohols, polyesteramides, polyanhydrides, polyurethanes, polyacrylic acid, polyacrylates, polyacrylamide, polyamides, polyetheramides, polyethylenamine, polyimides, polycarbourethanes, polyketones, polyvinylhalogenides, polyaromates, polyethylene, polypropylene, polytetrafluoroethylene, polyolefins, silicones, copolymers of these biomaterials as well as the afore-mentioned polymers with small chemical molecules covalently immobilized thereon, eluates, namely, organic and inorganic solvents and buffers
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