Chemistry > Lab Report > OCC433 Lab Report –Experiment 3 MeOH External Standard Analysis –GC-FID (All)

OCC433 Lab Report –Experiment 3 MeOH External Standard Analysis –GC-FID

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Purpose: The purpose of this experiment is to detect the amount of methanol present in the workplace based on NIOSH 2000 method using silica gel solid sorbent and GC-FID. Equipment: Instrumental eq... uipment: Solutions/reagents - Glass Vials - GC-FID - Silica Gel tube - Pasteur Pipettes - 10mL volumetric flasks - Micropipette - Agilent technologies Column 30m X 0.320mm, 0.25Micron, SN: USP180067H - Desorption solution (1 mL water/isopropanol (95:5)) - Methanol, chromatographic grade - He purified - Calibration stock solution, 2μg/μL. Add 25.3μLMethanol to 10 mL of desorbing solution System Parameters - Temperature (ramp): 50 °C for 22 min, 90°C for 1 min, 120°C for 3 min - Column:  Flow 2.6mL/min  Pressure 12 psi - Split-splitless inlet  Heater: 250°C  Pressure: 12 psi  Total flow: 265.6 mL/min - FID  Heater: 299.8°C  Air flow: 400 mL/min  H2 fuel flow: 35mL/min  Makeup flow (He): 22mL/min Results [Show More]

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