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Dialysis Tubing and Additional Accessories

Reichelt Chemietechnik offers a highly specific selection of dialysis tubing for the gentle desalting, cleaning, and concentration of delicate biological materials such as serums, protein solutions, and plant extracts. Desalting of metal colloids, purification of proteins and nucleic acid fragments are also part of the performance profile of these tubes, as well as the electrolyte exchange of bioactive materials. Growing bacterial cultures and depyrogenation of sensitive bioactive systems are standard applications related to dialysis separation processes in biochemistry.

What is Dialysis?

Dialysis is a proven method for gently desalting aqueous solutions of high-molecular-weight substances and for separating nonionic, non-molecular substances from such solutions. It is straightforward to implement using equipment and is based on the well-known diffusion of ions and small molecules through semipermeable membranes that retain molecules above a certain size. The sieving effect at the molecular level is mainly determined by the matrix structure of the polymer membranes. Depending on their cross-linking structure, these membranes have different separation limits defined as Molecular-Weight Cut-Off (MWCO) values.

For desalting solutions of high-molecular-weight substances on a preparative scale, Reichelt Chemietechnik offers a wide range of high-quality dialysis tubing with different MWCO values, covering the entire relevant separation range between 0.1 kD and 1000 kD. These tubular and seamless membranes, available in various dimensions, are made of cellulose acetate, cellulose hydrate, or cellulose ester and are used to dialyze the solution against pure water.

General Features of Dialysis Tubing

The tubing systems offered by Reichelt Chemietechnik ensure a defined pore size and, at the same time, a clearly defined separation limit. Depending on the type, the tubes are offered in lengths of 3, 10, and 15 meters, with flat widths ranging from 4 mm to 148 mm.

It should be noted that the specified separation limits are guideline values. The suitability of a particular THOMAPOR® membrane must be determined through preliminary experiments if there is any doubt, as the effective pore sizes of the membrane material depend on a number of external physicochemical factors, including the buffer composition used. Before using a dialysis tubing, it should be washed with distilled water to remove its sodium benzoate content, which is necessary for storage stabilization. Subsequent conditioning in dialysis buffer is advisable.

Dialysis Tubing Made of Plastics

CA

Tubing made of cellulose acetate in the Standard series is used for gentle desalting, cleaning, and concentration of biological media. It has a medium pore size of 25 angstroms, with a nominal separation limit of 15,000 Dalton.

Cellulose Hydrate

Furthermore, there are dialysis tubes made of cellulose hydrate in the Rapid models, which ensure a 20% higher dialysis speed. The medium pore size of the dialysis tubing is 25 angstroms, with a medium separation limit of 15,000 Dalton.

Both types, Rapid and Standard, are available in short lengths of 3 m, 5 m, and 15 m.

Cellulose Ester

In addition to tubing systems made of cellulose acetate and cellulose hydrate, RCT offers variations made of cellulose ester for gentle desalting, cleaning, and concentration of delicate biological media. They are offered with different separation limits that allow defined cleaning and concentration processes. Crucially, the tubing made of cellulose ester is entirely free of heavy metal compounds and sulfur compounds.

A Wide Range of Accessories

In addition to dialysis tubing, RCT offers a wide range of accessories for dialysis. Tube sealers for all flat widths are available, as well as tube funnels and dialysis cylinders.

To prepare the tubing for dialysis and remove possible heavy metals, you should use heavy metal washing solutions, which we also offer. These solutions ensure that unwanted traces of heavy metals, which could distort the analysis results, are washed away.

Buy Dialysis Tubing and Accessories at rct-online.de Reichelt Chemietechnik maintains a large part of the inventory of plastic dialysis tubing and dialysis accessories permanently in stock. This minimizes delivery times, and we ship just in time. If you have any questions about our products, feel free to give us a call. Our specialists in dialysis and tubing technology are always ready to assist with your inquiries.

Dialysis Tubing and Additional Accessories Reichelt Chemietechnik offers a highly specific selection of dialysis tubing for the gentle desalting, cleaning, and concentration of delicate... read more »
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Dialysis Tubing and Additional Accessories

Reichelt Chemietechnik offers a highly specific selection of dialysis tubing for the gentle desalting, cleaning, and concentration of delicate biological materials such as serums, protein solutions, and plant extracts. Desalting of metal colloids, purification of proteins and nucleic acid fragments are also part of the performance profile of these tubes, as well as the electrolyte exchange of bioactive materials. Growing bacterial cultures and depyrogenation of sensitive bioactive systems are standard applications related to dialysis separation processes in biochemistry.

What is Dialysis?

Dialysis is a proven method for gently desalting aqueous solutions of high-molecular-weight substances and for separating nonionic, non-molecular substances from such solutions. It is straightforward to implement using equipment and is based on the well-known diffusion of ions and small molecules through semipermeable membranes that retain molecules above a certain size. The sieving effect at the molecular level is mainly determined by the matrix structure of the polymer membranes. Depending on their cross-linking structure, these membranes have different separation limits defined as Molecular-Weight Cut-Off (MWCO) values.

For desalting solutions of high-molecular-weight substances on a preparative scale, Reichelt Chemietechnik offers a wide range of high-quality dialysis tubing with different MWCO values, covering the entire relevant separation range between 0.1 kD and 1000 kD. These tubular and seamless membranes, available in various dimensions, are made of cellulose acetate, cellulose hydrate, or cellulose ester and are used to dialyze the solution against pure water.

General Features of Dialysis Tubing

The tubing systems offered by Reichelt Chemietechnik ensure a defined pore size and, at the same time, a clearly defined separation limit. Depending on the type, the tubes are offered in lengths of 3, 10, and 15 meters, with flat widths ranging from 4 mm to 148 mm.

It should be noted that the specified separation limits are guideline values. The suitability of a particular THOMAPOR® membrane must be determined through preliminary experiments if there is any doubt, as the effective pore sizes of the membrane material depend on a number of external physicochemical factors, including the buffer composition used. Before using a dialysis tubing, it should be washed with distilled water to remove its sodium benzoate content, which is necessary for storage stabilization. Subsequent conditioning in dialysis buffer is advisable.

Dialysis Tubing Made of Plastics

CA

Tubing made of cellulose acetate in the Standard series is used for gentle desalting, cleaning, and concentration of biological media. It has a medium pore size of 25 angstroms, with a nominal separation limit of 15,000 Dalton.

Cellulose Hydrate

Furthermore, there are dialysis tubes made of cellulose hydrate in the Rapid models, which ensure a 20% higher dialysis speed. The medium pore size of the dialysis tubing is 25 angstroms, with a medium separation limit of 15,000 Dalton.

Both types, Rapid and Standard, are available in short lengths of 3 m, 5 m, and 15 m.

Cellulose Ester

In addition to tubing systems made of cellulose acetate and cellulose hydrate, RCT offers variations made of cellulose ester for gentle desalting, cleaning, and concentration of delicate biological media. They are offered with different separation limits that allow defined cleaning and concentration processes. Crucially, the tubing made of cellulose ester is entirely free of heavy metal compounds and sulfur compounds.

A Wide Range of Accessories

In addition to dialysis tubing, RCT offers a wide range of accessories for dialysis. Tube sealers for all flat widths are available, as well as tube funnels and dialysis cylinders.

To prepare the tubing for dialysis and remove possible heavy metals, you should use heavy metal washing solutions, which we also offer. These solutions ensure that unwanted traces of heavy metals, which could distort the analysis results, are washed away.

Buy Dialysis Tubing and Accessories at rct-online.de Reichelt Chemietechnik maintains a large part of the inventory of plastic dialysis tubing and dialysis accessories permanently in stock. This minimizes delivery times, and we ship just in time. If you have any questions about our products, feel free to give us a call. Our specialists in dialysis and tubing technology are always ready to assist with your inquiries.