816 Results for: "Analytical Standards"

Supplier: MP Biomedicals

Agarose is a purified linear galactan hydrocolloid isolated from agar or agar-bearing marine algae.
Agarose is useful in separation of nucleic acids electrophoretically because agarose gels have larger pore sizes than cross linked acrylamide gels at low concentrations and in chromatographic separations by either beading the agarose or cross-linking it. Agarose gels are also used in immunoelectrophoresis (IEP) and double-diffusion Ouchterlony plates to demonstrate antibody-antigen reactions. Agarose was used to prepare 0.5% agarose gel for Southern blot analysis of the DNA extracted from primate muscles.
The following is a list of properties associated with our agaroses: Sulfate content - used as an indicator of purity, since sulfate is the major ionic group present. Gel strength - the force that must be applied to a gel to cause it to fracture. Gel point - the temperature at which an aqueous agarose solution forms a gel as it cools. Agarose solutions exhibit hysteresis in the liquid-to-gel transition - that is, their gel point is not the same as their melting temperature. Electroendosmosis (EEO) - a movement of liquid through the gel. Anionic groups in an agarose gel are affixed to the matrix and cannot move, but dissociable counter cations can migrate toward the cathode in the matrix, giving rise to EEO. Since electrophoretic movement of biopolymers is usually toward the anode, EEO can disrupt separations because of internal convection.

Supplier: SARSTEDT INC

With SARSTEDT secondary tubes, you are investing in high-quality and precisely manufactured consumables for individual laboratory workflows. Whether with or without a false bottom, screw cap or push cap, secondary tubes are a reliable all-rounder and an indispensable part of medical laboratory diagnostics.

Supplier: Thermo Fisher Scientific

The Barnstead GenPure Pro water purification systems provide up to 200L/day of Type 1, ultrapure (18.2 megohm) water from pre-treated feed water

Supplier: Thermo Fisher Scientific

The Thermo Scientific™ Orion™ Pro Star PI214 pH/ion bench meter is designed to provide accurate, reliable electrochemistry testing. Featuring an intuitive interface, enhanced data reporting and robust functionality, the Orion™ Pro Star PI214 meter delivers advanced performance in a modern and simplified package.

Supplier: Thermo Fisher Scientific

The Barnstead GenPure xCAD Plus water purification systems provides up to 200L/day of Type 1, ultrapure (18.2 megohm) water from pre-treated feed water

Supplier: ELGA LabWater

PURELAB Chorus 1 Complete provides a complete solution from tap to ultrapure water (Type I) direct from a potable water supply, and is ideal for laboratories needing up to 100 liters of 18.2 MΩ.cm ultrapure water. With its simple and ergonomic design and ease-of-use, water can be dispensed directly from the system or from a choice of additional Halo Dispensers.