Spectrophotometry

Term from Laboratory Testing industry explained for recruiters

Spectrophotometry is a common laboratory testing method used to measure how much light a substance absorbs or reflects. Think of it like taking a scientific photograph of a sample to determine what's in it and how much is there. Lab technicians and scientists use this technique to test things like water quality, food safety, medical samples, and industrial materials. It's similar to other testing methods like chromatography or mass spectrometry. This technique is essential in many types of laboratories, from medical and pharmaceutical to environmental and quality control labs.

Examples in Resumes

Performed routine Spectrophotometry analysis of water samples for environmental compliance

Operated Spectrophotometer for quality control testing in pharmaceutical manufacturing

Conducted Spectrophotometric analysis of blood samples in clinical laboratory setting

Typical job title: "Laboratory Technicians"

Also try searching for:

Lab Technician Laboratory Analyst Quality Control Analyst Analytical Chemist Research Associate Laboratory Scientist QC Technician

Example Interview Questions

Senior Level Questions

Q: How would you troubleshoot when spectrophotometer readings are inconsistent?

Expected Answer: A senior technician should explain the systematic approach to problem-solving: checking instrument calibration, sample preparation methods, potential contamination sources, and maintenance history. They should also mention training junior staff on proper techniques.

Q: How do you ensure quality control in a busy laboratory setting?

Expected Answer: Should discuss implementing standard operating procedures, regular calibration schedules, maintaining proper documentation, training programs, and how to handle out-of-specification results.

Mid Level Questions

Q: What steps do you take to prepare samples for spectrophotometric analysis?

Expected Answer: Should explain basic sample preparation including proper dilution, filtering if needed, using appropriate blanks, and following standard procedures while maintaining sample integrity.

Q: How do you maintain accurate records of test results?

Expected Answer: Should discuss using laboratory information systems, proper documentation practices, data backup procedures, and maintaining chain of custody for samples.

Junior Level Questions

Q: What safety precautions do you take when handling laboratory samples?

Expected Answer: Should mention basic laboratory safety: wearing proper protective equipment, following safety protocols, proper sample handling, and knowing emergency procedures.

Q: How do you perform basic instrument calibration?

Expected Answer: Should be able to explain simple calibration steps: using standard solutions, checking baseline readings, and following basic maintenance procedures.

Experience Level Indicators

Junior (0-2 years)

  • Basic sample preparation
  • Simple instrument operation
  • Following standard procedures
  • Basic data recording

Mid (2-5 years)

  • Complex sample analysis
  • Quality control procedures
  • Troubleshooting basic issues
  • Data interpretation

Senior (5+ years)

  • Method development
  • Training and supervision
  • Advanced troubleshooting
  • Quality system management

Red Flags to Watch For

  • No understanding of basic laboratory safety procedures
  • Unable to explain simple sample preparation steps
  • Lack of attention to detail in documentation
  • No experience with quality control measures