Abstract for Grants

The APCF is located in the Shapiro Building and the analytical equipment is in room 1042. Freezers for sample storage are also located in the Beckman Center Freezer Farm, Room 1012. An additional HPLC with a diode array detector that is used part time for core service activities is located in room 1002 of the Fox North Research Building. HPLC capability includes four complete HPLC systems consisting of seven solvent delivery modules (4 Shimadzu LC-10A's, 2 Shimadzu LC-10AD's, 1 SpectraSystem P4000). HPLC detection capabilities cover a wide range of currently available methods, including UV/Vis (Shimadzu SPD-10AV), fluorescence (Shimadzu RF-10A), electrochemical (ESA models 5100A and 5200A), and photodiode array (SpectraSystem UV6000LP) detection systems. The Shimadzu HPLC systems are integrated directly into one of two dedicated PC's running Shimadzu EZChrom software for automated post-run analysis. Likewise, the SpectraSystem system is integrated to a dedicated PC running Chromquest (OEM version of EZChrom software). Three of the four HPLC systems include automated injection systems (2 Shimadzu SIL-10A's, 1 SpectraSystem AS3000) for more convenient analysis of a large number of samples. A Perkin Elmer AAnalyst 300 AA is available for the determination of metals and metal containing compounds, such as cisplatin and its analogs. Sample analysis by AA utilizes an automated injection system, with data acquisition and analysis using WinLab software on a dedicated PC. The GC/MS instrumentation is composed of a Shimadzu Model QP-5000 EI gas chromatograph/mass spectrometer, interfaced directly to a dedicated PC running CLASS-5000 software. A Micromass Quattro Ultima API Triple Stage Quadrupole Mass Spectrometer System (LC/MS/MS) provides exquisite selectivity and sensitivity for analytes in complex biological matrices. Instrument control and data acquisition for the Micromass mass detector and the associated Agilent HPLC are coordinated through a MassLynx-NT Workstation running MassLynx and QuanLynx software. As a result of high demand for LC/MS/.MS services, a second triple quadrupole tandem mass spectrometer (Waters Premier XE) was recently obtained to increase our capabilities. The front-end on the Premier XE is a Waters Agility Ultra-high Pressure Liquid Chromatograph (UPLC) that allows us to maximize sensitivity and minimize run-times, thereby increasing throughput. Like the Quattro Ultima, instrument control and data analysis on the Premier XE is performed with MassLynx and QuanLynx software. In addition, MetaboLynx software was purchased to aid in metabolite identification.