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New England Biolabs offers a selection of highly pure protein standards. Sizes range from 10 to 250 kDa which is ideal for accurate molecular weight determination for a wide range of expressed proteins. We offer a blue。

Spectra Multicolor Low Range Protein Ladder: 1.7–40: 6: Novex Tricine: Blue, Orange, Green : SeeBlue Pre-Stained Standard: 3–200: 9: all SDS-PAGE gels: Blue : iBright Prestained。

The Protein Ladder allows to monitor molecular weight separation during electrophoresis, estimate molecular weights. The marker is ready-to-use. There is no need to boil. Easy to identify: Proteins are covalently coupled with a blue。

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