C4.zip

A C4 ZipTip is a standard pipette tip containing a microscopic bed of resin fixed at its distal end. Unlike C18 resins, which are used for smaller peptides, the C4 resin is optimized for larger, more hydrophobic molecules like proteins and large polypeptides. Primary Uses in Research Researchers use these tools for two main reasons:

: Enrichment of dilute samples to ensure they are within the detection range of highly sensitive instruments. Role in Mass Spectrometry

This technology has been instrumental in recent studies, including identifying SARS-CoV-2 protease cleavage sites and characterizing human cannabinoid receptors. c4.zip

: Contaminants are washed away with a dilute acid, such as trifluoroacetic acid (TFA) .

The C4 ZipTip is most commonly used in the workflow for (Matrix-Assisted Laser Desorption/Ionization Time-of-Flight). A C4 ZipTip is a standard pipette tip

: The purified protein is eluted directly onto a target plate using an organic solvent like acetonitrile , where it is mixed with a matrix for analysis. Key Specifications Resin Type : Butyl (C4) silica.

: Removing salts, buffers, and detergents that interfere with downstream analysis. For example, researchers use them to clean samples of Trastuzumab probes or mussel biotoxins before testing. Role in Mass Spectrometry This technology has been

: Typically optimized for very small volumes (microliters).