GeneScan™ 1000 ROX™ Size Standard is an internal lane size standard developed for use with Applied Biosystems® fluorescence-based DNA electrophoresis systems. The use of an internal lane size standard during electrophoresis enables automated data analysis and precise DNA fragment size comparisons between electrophoresis runs. GeneScan™ 1000 ROX™ Size Standard is designed for sizing DNA fragments in the 47–946 bp range and provides labeled fragments of 47, 51, 55, 82, 85 93 99, 126, 136, 262, 293, 317, 439, 557, 692, 695 and 946 bases. Each of the DNA fragments is labeled with ROX™ fluorophore, which results in a single peak when run under non-denaturing conditions.

Note: Under denaturing conditions using POP-4® polymer, fragment lengths between 100 and 539 bp can be determined (the linear range of the separation with respect to length vs. scan number).