ZefSci Inc. is a engineering scientific firm specializiing in state of the art LCMSMS instrumentation. We cover most HPLC/UPL ... C, LC/MS/MS, TOF & Orbitrap instruments used in the pharmaceutical, biotechnology, chemical, cosmetics and other industries. Service options include repair and service contract, preventive maintenance, or time and material. ZefSci is also fully integrated in instrument compliance and qualification as a added value to our customers. Proud distributor and authorized service provider for Shimadzu Scientific chromatography products. ZefSci is the exclusive distributor of the V-KIT product. www.v-kit.com in North America. read more