Flame Photometer
Measures sodium, potassium and a few other alkali and alkaline earth metals by spraying a solution into a flame and measuring the light the excited atoms emit at their characteristic wavelengths.
- Environmental and water testing
- Agriculture and soil testing
- Fertiliser manufacture
- Food and beverage
- Cement and glass (alkali content)
Flame photometer calibration procedures
Instrument qualification (DQ · IQ · OQ · PQ)
- 01
Design qualification (DQ)
Specify elements and ranges required (for example Na and K, 0–100 mg/L), fuel type, filters and data output.
- 02
Installation qualification (IQ)
Install with a safe fuel supply, regulator, exhaust and compressor; record serial numbers and check for gas leaks.
- 03
Operational qualification (OQ)
Check zero stability, drift over 15–30 minutes, linearity with Na and K standards and detection limit against the manufacturer's specifications.
- 04
Performance qualification (PQ)
Analyse a certified water reference material or spiked samples and show recovery and repeatability meet lab limits.
Keep every Flame photometer in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.