The Thermo Fisher Scientific™ EASY-Sprayᵀᴹ transfer line is customized by PharmaFluidics and is equipped with a stainless steel 50 µm through-bore union. The combination of a µPACᵀᴹ column and a transfer line is designed for high resolution separations in nano LC-MS applications using Thermo Fisher Scientificᵀᴹ’s EASY-Sprayᵀᴹ source. The design with the stainless-steel union allows for the grounding needed for optimal µPACᵀᴹ performance.