Flame Photometers

Determination of Alkali Metals

The A. Krüss Optronic Flame Photometer FP8000 Series allows for the simple and cost-effective determination of alkali metals such as Na, K, Li, Ca (and others) in aqueous solutions. Both laboratory and process models are available. The FP8000 Series apply a relative measurement method according to the principle of flame emission spectroscopy (F-AES). They are an excellent alternative to analysis by ICP or F-AAS for the alkali metals, especially in complex aqueous matrices which may be affected by ion suppression. Flame photometry is considered the reference method for Na, K, Li and Ca.

Key Features:

  • Reliable, simultaneous measurement of the elements Na, K, Li and Ca
  • Five available measurement channels with high precision over a broad measurement range
  • Easy Transfer of Applications From Aging Eppendorf ELEX 6361 and IL943 Flame Photometers
  • Fast measurement – up to 300 measurements an hour! Highest in the industry
  • High safety standards through intelligent operational safety systems
  • Easy to Use intuitive software using a large touchscreen display and USB mouse
  • Traceability of all measured data and device specific data
  • User administration feature with two authorized levels
  • Complies with 21CFR Part 11 and GMP/GLP
  • Four models to choose from:
    • FP8400 Standard Laboratory Version
    • FP8500 Process Version
    • FP8600 Automated Sample Feed
    • FP8700 Automated Sample Feed and Dilution

A.KRÜSS Optronic Products

Flame Photometers


  • Pharmaceutical
    • Determination of Na and K in intravenous (IV) solutions
    • Determination of Na and K in non-IV solutions (injectables, nasal, oral….)
    • Quality control of products containing Na, K or Li
    • Testing analytical instrument calibrators and controls containing K, Na, Li and Ca
    • Concentration determination in pharmaceutical reagents
    • K and Na levels in Veterinary solutions
  • Food and Beverage
    • Na, K and Ca content in juices, soft drinks, sports drinks and energy drinks
    • Monitor compliance with Na and K limits in foods
    • Pre-production quality monitoring pre-milk, pre-food and milk powder
  • Environmental
    • Discharge wastewater monitoring and control for potassium and sodium
    • Water Quality
    • Control monitoring of fertilizer residues in water and soil
  • Chemical
    • Monitoring of salt mining quality
    • Final inspection or inbound of chemical products
    • Na, K and Ca in cement

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