(10) Model HC-404 is a self contained, fixed wavelength infrared analyzer designed for rapid accurate analysis of total petroleum hydrocarbons in water, soil and sludge samples.
The Model 410 mercury Analyzer System incorporates the Hatch & Ott Cold Vapor Technique for the analysis of trace levels of mercury in drinking, surface and saline waters, as well as domestic and industrial wastes.
The Model PFP-7 is a low temperature, single channel flame photometer designed as a low cost approach for the routine determination of sodium and potassium. Additional filters are available for the measurement of lithium, barium, and calcium.
Thermal excitation of sodium, lithium, and potassium in a low temperature flame gives atomic line emission sufficient detection levels of 8ppt Sodium, 5ppt Lithium, and 15ppt Potassium.