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Sherwood Scientific Model 410 Flame Photometer

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Sherwood Scientific Model 410 Flame Photometer

Flame Photometry is the technique of choice for the measurement of Sodium, Potassium and Calcium in all sample types in: Mineral Extraction, Oil Industry, Paper Industry, Pharmaceuticals, Soil Analysis, Utilities, Food & Beverage, Chemical Manufacture and Fertilisers.
The Model 410 Industrial Flame Photometer comes with a digital output, for printer or PC connection, also has Sodium linearisation capability to allow higher concentrations of Sodium (<40 ppm) to be directly measured using a single point calibration. That facility can be switched on or off according to the operator's preference or protocol for Sodium determinations.
This item was removed from a laboratory as surplus to requirements.

Technical Specifications
  • Sensitivity: To display minimum of 100 units, Na <0.5 ppm, K <0.5 ppm, Li 5 ppm, Ca 5 ppm, Ba 200 ppm
  • Specificity: For Na, K, Li interference is less than 0.5% of the concentration of Na, K, Li, Ca or Ba, equal to the concentration under analysis
  • Linearity: Better than 2% mid range with Na=3ppm, K=3ppm, or Li=5ppm
  • Drift: ( To be measured after 30 mins warm up): Zero Drift better than 2% per hour when calibrated with Na=10ppm
  • Reproducibility:< 1 % CV from the same Bulk sample for 20 determinations at Na and K=10ppm .
  • Limit of Detection: <20 ppb Na and K
  • Time to Stability: Aspirate for 20 secs.
  • Aspiration Rate: Variable 2-6 mls /min
  • Height: 51cm
  • Width: 34cm
  • Depth: 39cm



Item has seen previous use but is in good condition.



Item powers up but has not been tested further. Inspections welcome.