Partition Chromatography
Miles Scientific RP-2 Dimethyl Silanized Silica Gel 60 F on Glass 250U 20X20CM (25 PLATES)
RP-2 dimethyl-modified Silica Gel 60 - fluorescent indicator (UV 254) - Glass-backed - 250 µm thickness - 20x20 cm - 25 plates per box This TLC plate can be developed using purely organic, organic/aqueous, and purely aqueous mobile phases. Due to this these plates have been used in numerous applications in normal phase chromatography as well as reversed phase chromatography. Common applications include the analysis of active plant constituents and steroids.
Miles Scientific SILICA GEL COATED ON AL FOIL SHEETS 200UM 20X20CM (25 SHEETS)
Analtech’s flexible backed TLC plates offer the same exacting specifications as with the classic glass backed plates assuring batch-to-batch uniformity. Quality is controlled at each step in the manufacturing process — from incoming raw materials to outgoing packaging. Lighter and safer to handle than glass; also unbreakable- Easy to cut with scissors to customize plate size or isolate components - Available with Polyester or Aluminum backing - Attach to reports for permanent record - Minimum storage space required - Inexpensive shipping due to weight
Sorbent Technologies Inc Alumina N TLC Plates, w/UV254, polyester backed, 200um, 4x8cm, 50/pk
Alumina Neutral (pH 6-8) with UV254, analytical, polyester backed TLC plates. The coating thickness is 200um and dimensions are 4x8cm. There are 50 plates per pack. Applications include: terpenes, alkaloids, steroids, aliphatic and aromatic compounds. To ensure sufficient adherence an inert organic binder is added to the aqueous suspension for coating. The aluminum oxide layer has a specific surface of about 200 m2/g (BET) and a pore size of about 60A. To activate the aluminum oxide layer, we recommend heating the TLC plates for 10 minutes at 120C.
Miles Scientific Silica Gel G 250um 20x20cm (25 plates/box)
No organic substances are added to these products, thus making them compatible with sulfuric acid charring visualization. These plates are commonly scraped from the glass backing to isolate separated components for other analytical procedures. They are compatible with all organic solvents however, they are not recommended for use in systems containing greater than 20% water because of the solubility of the gypsum binder in aqueous solutions. The "G" stands for Gypsum and indicates that calcium sulfate hemihydrate (CaSO4·1/2H2O), a refined form of gypsum, has been included in the adsorption formulation. Gypsum functions as a binder, improving the cohesion of the adsorbent particles and increasing the adhesion of the layer to the glass substrate.
Sorbent Technologies Inc Cellulose 300 TLC Plates, w/UV254, aluminum backed, 100um, 20x20cm, 25/pk
Cellulose 300 with UV254, aluminum backed TLC plates. The coating thickness is 100um and dimensions are 20x20cm. There are 25 plates per pack. Applications include: partition chromatography of polar substances such as amino acids, carboxylic acids or carbohydrates. Cellulose is especially used for partition chromatographic separations of polar substances such as amino acids and other carboxylic acids or carbohydrates. Compared to paper chromatography (PC) thin layer chromatography, cellulose offers shorter migration times and more concentrated substance spots resulting in a higher detection sensitivity. TLC plates (CEL 300) are coated with native, fibrous cellulose.
Sorbent Technologies Inc Silica G TLC Plates, w/UV254, glass backed, 250um, 2.5x7.5cm, 100/pk
"Silica G" is a standard grade, unmodified Silica 60 with a surface area of 500 m2/g, mean pore size of 60A, specific pore volume of 0.75 ml/g, and particle size of 5-17um. The TLC plates contain UV254 fluorescent indicator. This analytical soft layer is bound to a glass support. It has a thickness of 250um and dimensions of 2.5x7.5cm. There are 100 plates per pack.
Sorbent Technologies Inc Alumina N TLC Plates, w/UV254, glass backed, 250um, 20x20cm, 25/pk
Alumina Neutral (pH 6-8) with UV254, analytical, glass backed TLC plates. The coating thickness is 250um and dimensions are 20x20cm. There are 25 plates per pack. Applications include: terpenes, alkaloids, steroids, aliphatic and aromatic compounds. To ensure sufficient adherence an inert organic binder is added to the aqueous suspension for coating. The aluminum oxide layer has a specific surface of about 200 m2/g (BET) and a pore size of about 60A. To activate the aluminum oxide layer, we recommend heating the TLC plates for 10 minutes at 120C.
Sorbent Technologies Inc Cellulose 300 PEI TLC Plates, polyester backed, 100um, 20x20cm, 25/pk
Cellulose 300 PEI, polyester backed TLC plates contain fibrous cellulose impregnated with polyethyleneimine. The coating thickness is 100um and dimensions are 20x20cm. There are 25 plates per pack. Applications include: analysis of nucleic acids, and of mutagenic substances with the 32P post-labelling procedure (see Sorbtech Application No. 402260.) Cellulose ion exchange layers are suited for the separation of substances with exchange-active groups. Consequently they are used for the separation of amino acids, peptides, enzymes, nucleic acid constituents (nucleotides, nucleosides) etc. PEI is not a chemically modified cellulose, but a complex of cellulose and poly- ethyleneimine. PEI cellulose is a relatively strong anion exchanger. PEI layers should be stored in a refrigerator at 4C. An important application of CEL 300 PEI is the analysis of mutagenic substances with a 32P postlabelling procedure.
Macherey-Nagel TLC polyerster sheets POLYGRAM CEL 300 PEI, 20x20 cm
POLYGRAM sheets CEL 300 PEI - size: 20 x 20 cm - pack of 25