Residue Analysis

Job Description: GC–MS/MS & LC–MS/MS Analyst (1–2 Years’ Experience)

Department: Residue Analysis

Industry: Food Testing Laboratory (FSSAI/NABL 17025)

Location: Gujarat / Rajasthan

Position Overview

We are seeking a motivated GC–MS/MS & LC–MS/MS Analyst with 1–2 years of hands-on experience in pesticide residue testing, contaminants analysis, or food/agri product testing. The role involves sample preparation, instrument operation, basic troubleshooting, calibration, and adherence to NABL ISO/IEC 17025 guidelines.

The candidate will work with advanced mass spectrometry platforms (Agilent/Sciex/Waters/Shimadzu/Thermo) for routine testing of spices and other food products.

Key Responsibilities

1. Instrument Operation (GC–MS/MS & LC–MS/MS)

● Perform daily system checks, tuning, calibration, and QC verification.

● Set up acquisition methods, MRM transitions, retention times, and instrument sequences.

● Ensure stable performance: peak shape, sensitivity, ion ratios, RT consistency.

● Perform basic troubleshooting (source cleaning, inlet maintenance, liner change, vacuum checks, column trimming, etc.).

2. Sample Preparation

● Carry out Quenchers extraction, clean-up (DSPE/PSA/C18/GCB), and evaporation steps.

● Handle extracts for multi-residue pesticides, antibiotics, mycotoxins, PAHs, and other contaminants.

● Maintain sample integrity, avoid cross-contamination, and follow strict SOPs.

3. Calibration & Quantification

● Prepare calibration standards (solvent and matrix-matched).

● Generate calibration curves (r² ≥ 0.99) using appropriate regression models.

● Validate ion ratios and MRM transition criteria as per SANTE/FSSAI guidelines.

● Perform quantification using internal standards and QC acceptance limits.

4. Quality & Documentation (NABL)

● Maintain analytical records, raw data, chromatograms, and instrument logs.

● Follow ISO/IEC 17025 documentation and participate in audits.

● Run blanks, spikes, duplicates, and QC samples per batch.

● Ensure traceability of standards, reagents, and consumables.

5. Method Development & Validation (Assisted Role)

● Assist in optimization of extraction conditions and MS/MS parameters.

● Maintain method SOPs and work instructions.

6. Lab Operations & Support

● Ensure instrument uptime, preventive maintenance, and coordination with service teams.

● Follow safety and chemical handling protocols (HSE compliance).

● Help manage inventory: columns, vials, gases, solvents, Quenchers kits, standards.

Required Qualifications Education

● / in Chemistry, Analytical Chemistry

Experience

● 1–2 years’ experience in a food testing lab / contract testing lab

● Experience in pesticide residue analysis preferred

● Hands-on exposure to at least one instrument–MS/MS (Agilent/Sciex/Thermo/Shimadzu), LC–MS/MS (Agilent/Sciex/Thermo/Shimadzu/Waters)

Required Technical Skills

● Knowledge of Quenchers, SPE, and dilution techniques

● Understanding of MRM, ion ratios, dwell time, collision energies

● Experience with chromatography troubleshooting

● Awareness of ISO 17025, FSSAI, APEDA, SANTE guidelines

● Familiarity with software such as Mass Hunter, MultiQuant, Analyst, LabSolutions, Trace Finder, etc.

Key Competencies

● Strong understanding of analytical chemistry

● Ability to follow SOPs and maintain high accuracy

● Good communication and documentation skills

● Teamwork, time management, and discipline

● Willingness to work in high-throughput routine environments

Job Types: Full-time, Permanent

Pay: ₹60,000.00 - ₹70,000.00 per month

Ability to commute/relocate:

• Gandhidham, Gujarat: Reliably commute or planning to relocate before starting work (Preferred)

Application Question(s):

• Do you have relevant exeperience?

Education:

• Master's (Preferred)

Work Location: In person