SPECIALIZED EXPERIENCE FOR GS-11: One year of specialized experience which includes: performing tasks using Fourier Transform infrared spectroscopy (FTIR), gas chromatography (GC) with various detectors, liquid/ion chromatography (LC/IC), GC mass spectrometry (GC-MS), inductively coupled plasma (ICP) spectroscopy, ICP-mass spectrometry (ICP-MS), alpha spectroscopy, gamma spectroscopy; liquid scintillation and proportional counting; microscopy; wet chemistry techniques; or related instrumentation and equipment, conducting environmental and occupational health sample analyses determining chemical composition, and report results as required, and analyze difficult, complex, and unusual chemical samples received in the laboratory. In addition to meeting the basic requirement above, to qualify for this position you must also meet the qualification requirements listed below: SPECIALIZED EXPERIENCE FOR GS-09: One year of specialized experience which includes: monitoring sophisticated laboratory equipment such as Liquid chromatography (LC), gas chromatography (GC) with various detectors, inductively coupled plasma (ICP) spectroscopy, ICP-mass spectrometry (ICP-MS) liquid-ion chromatography (LC/IC), and LC mass spectrometry (LCMS), planning chemical analysis, and troubleshoot and maintain laboratory instruments.