Labconco BTLSERUM20MMCORK PK-100 5ML. Serum is in a liquid state at room temperature. Unlike traditional frozen serums whose primary constituents are water protein or casein resuspse remains unchanged when the enzyme is in the supernatant. Therefore there is no need to heat the serum to release the cobalt from the frozen serum. This serum was preserved by a freeze-thaw reaction and is unaffected by freezing. The heparin-based soy broth base stock is ready to use when the freeze-thaw cycle is complete. The standard 20mM sorbent disc absorbs 20mM sorbent films and then draws liquid from the filter disc to the surface of the filter paper for use in resuspending serum or for use in assay procedures. There is no need to heat the filter paper. The Serology Assay Test Strip with Certification provides visual confirmation of heparin solubility and protein solubility in assays made with this method. Specifications for Labconco BTLSERUM20MMCORK PK-100 5ML 7573010 : Description: BTLSERUM20MMCORK PK-100 5ML (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Labconco products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic Beakers Test Tubes Flasks & Accessories with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for Labconco Beakers Test Tubes Flasks & Accessories. We are an authorized supplier to all federal and state government agencies as well as to research and educational institutions and can facilitate volume orders on many types of laboratory equipment lab consumables and other products to help fulfill your specific needs. We offer Free Shipping and FREE USPS shipping to APO and FPO addresses on all orders in our store over 49. Please refer to our APO/FPO Shipping and Export Restrictions for more information on export to APO/FPO addresses. In addition to the Labconco BTLSERUM20MMCORK PK-100 5ML 7573010/ 26675-685 we carry a full complement of Beakers Test Tubes Flasks & Accessories as well as other product offerings from Labconco. We also carry a full line of Labconco accessories to help meet your laboratory and scientific needs. For a complete selection of Labconco Beakers Test Tubes Flasks & Accessories please visit our Labconco page. For more brand name Beakers Test Tubes Flasks & Accessories please visit our Beakers Test Tubes Flasks & Accessories store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. Labconco BTLSERUM20MMCORK PK-100 5ML 7573010