A single-channel micropipette is a fundamental laboratory tool used for accurately measuring and transferring small volumes of liquids, typically in the microliter range (µL). Its primary function is to handle one sample at a time with high precision. Here's a breakdown of its key uses: General Liquid Handling: * Precise Volume Transfer: Dispensing exact amounts of liquids for various experimental procedures. * Mixing and Dilution: Combining liquids in specific ratios for creating solutions or diluting samples. * Aliquoting: Dividing larger volumes of liquid into smaller, precise portions. * Serial Dilutions: Creating a series of dilutions with progressively lower concentrations. Specific Applications in Different Fields: * Molecular Biology: * Preparing reagents for PCR (Polymerase Chain Reaction). * Loading samples into gels for electrophoresis. * Transferring DNA, RNA, and protein samples.