The best handheld vacuum cleaners are perfect for a quick clean when you don't want the hassle of dragging out your main vacuum cleaner. We've tested the most popular handheld vacuum cleaners, ...

The DAWN ® multi-angle light scattering (MALS) detector connects to most HPLC, GPC, FPLC or FFF separation systems to determine absolute molecular weight, size, and conformation of peptides ...

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