VOC GC/MS Analyst – EPA TO-15/TO-15A

ALS Technichem (HK) Pty Ltd; Simi Valley (CA); On-site; USD 65,000 - 90,000; Full time

Job summary

ALS is seeking a TO-15 Analyst in Simi Valley to perform VOC analysis in ambient air, indoor air, and related samples using GC/MS, following EPA TO-15/TO-15A methods. The role includes instrument maintenance, data review, and adherence to QC standards.

You will prepare samples, calibrate equipment, review results, and enter data in LIMS while maintaining audit-ready records. Strong attention to detail and ability to work in a regulated environment are essential.

Qualifications

• Practical knowledge of analytical chemistry, chromatography, mass spectrometry, calibration, and quantitative data analysis.
• Experience working in a production, environmental, industrial, or commercial analytical laboratory.
• Ability to interpret chromatographic and mass-spectral data accurately.
• Strong attention to detail and ability to follow controlled methods and SOPs.
• Ability to manage multiple analytical batches and priorities while meeting turnaround-time requirements.
• Proficiency with standard computer applications and laboratory data systems.
• Effective written and verbal communication skills.
• Ability to work independently and collaboratively in a quality-controlled environment.

Responsibilities

• Analyze air samples for VOCs using GC/MS in accordance with EPA TO-15, TO-15A, and laboratory SOPs.
• Prepare and operate sample introduction systems, including preconcentrators and canister autosamplers.
• Perform initial and continuing calibrations, instrument tuning, method blanks, laboratory control samples, duplicates, and other required quality-control procedures.
• Review chromatograms, identify compounds, verify integrations, evaluate spectral matches, and quantify target analytes.
• Assess analytical batches against established acceptance criteria and document any exceptions or corrective actions.
• Process samples in accordance with chain-of-custody requirements, holding times, detection-limit requirements, and project-specific instructions.
• Enter, review, and authorize analytical data in the laboratory information management system (LIMS), according to assigned authorization level.
• Maintain complete and traceable records, including preparation logs, instrument logs, calibration records, maintenance documentation, and data-review notes.
• Perform routine preventive maintenance and first-line troubleshooting of GC/MS instruments, preconcentrators, autosamplers, vacuum systems, and associated equipment.
• Support canister-cleaning and certification activities, as required.

Skills

Analytical chemistry

Chromatography

Mass spectrometry

Calibration

Data analysis

LIMS familiarity

Tools

LIMS

Job description

ALS is seeking a TO-15 Analyst in Simi Valley to perform VOC analysis in ambient air, indoor air, and related samples using GC/MS, following EPA TO-15/TO-15A methods. The role includes instrument maintenance, data review, and adherence to QC standards.

You will prepare samples, calibrate equipment, review results, and enter data in LIMS while maintaining audit-ready records. Strong attention to detail and ability to work in a regulated environment are essential.