The Model TL-2800 Ammonia & Nitrate analyzer is a laboratory instrument designed for high throughput automated analysis of ammonia and nitrate/nitrite + ammonia in aqueous samples. Our patented ...read more
The Model TL-2800 Ammonia & Nitrate analyzer is a laboratory instrument designed for high throughput automated analysis of ammonia and nitrate/nitrite + ammonia in aqueous samples.
Our patented gas diffusion / conductivity principle provides results unaffected by turbidity, color, or particulate matter in the sample. Ultra sensitive detection down to the ppb level is easily achieved with the standard diffusion membrane and conductivity cell.
An 8-roller peristaltic pump directs sample, caustic, and absorbing solutions into a tubular diffusion membrane assembly. Within the assembly, sample is mixed with the caustic solution resulting in a mixture with a pH of 11 or higher. At this pH level, virtually all ammonium present in the sample is converted to dissolved ammonia gas.
As the sample & caustic mixture flows over the tubular membrane, dissolved ammonia gas diffuses through the membrane wall and is absorbed by a buffered solution flowing on the inside. The measured change in electrical conductance of the absorbing solution is proportional to the concentration of ammonium in present in the sample.
Write a review
Sharing your experience will help scientists like you. Achieve Reviewer Status and Win an iPad air (All reviews published will be entered into the next drawing on May 30th 2014).
Why make an enquiry with SelectScience?
EASY It’s quick and simple to do
FAST Your enquiry will be delivered straight to the manufacturer
FREE You’re under no obligation
SECURE We only pass your details on to trusted suppliers at your request
SAVE TIME Submit your details once and make multiple enquiries