ZefSci, Zef Scientific, Inc.
John Cannistraro is a seasoned professional in the field of analytical instrumentation, currently serving as a Senior Field Service Engineer at Zefsci, Zef Scientific, Inc. since October 2017. In this role, John specializes in field service and qualification of multi-vendor LC-MS instruments, including Waters Alliance HPLC, Acquity UPLC, Prep LC, and QDa Detector. Prior to this, John worked at Waters from October 2011 to October 2017 as a Field Service Engineer, where expertise was gained in the complete line of HPLC, UPLC, Prep, and SFC products. John's career began at Atrium Medical as an Analytical Chemistry Associate from September 2008 to October 2011. Educationally, John holds a Bachelor of Science degree in Chemistry from the University of Massachusetts Lowell, earned between 2003 and 2008.
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ZefSci, Zef Scientific, Inc.
ZefSci Inc. is an engineering scientific firm specializing in state of the art LCMS instrumentation. We cover most HPLC/UPLC, LCMS, 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. #shimadzu Native top down analysis using EMSion ECD technology #EMSion reseller and authorized service prvider. USA West Coast authorized service provider for Evosep #evosep ZefSci is the exclusive distributor of the V-KIT product in North America