Stretch Armstrong Stretch Armstrong Stretch Armstrong is a large, gel-filled action figure first introduced in 1976 by Kenner. In 2016, at the New York Toy Fair, Hasbro announced the return of the Stretch Armstrong toy in its original 1976 design. Stretch Armstrong is an action figure shaped as a short, muscular, man with blond hair wearing black trunks. The doll's most notable feature was that it could be stretched from its original size of about to . If a tear did develop, it could be fixed with an adhesive bandage. Information on how to repair Stretch was provided in the toy's instruction
Gel permeation chromatography Gels are used as stationary phase for GPC. The pore size of a gel must be carefully controlled in order to be able to apply the gel to a given separation. Other desirable properties of the gel forming agent are the absence of ionizing groups and, in a given solvent, low affinity for the substances to be separated. Commercial gels like PLgel, Sephadex, Bio-Gel (cross-linked polyacrylamide), agarose gel and Styragel are often used based on different separation requirements. The column used for GPC is filled with a microporous packing material. The column is filled with the gel. The eluent (mobile