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The TAG@IARCTrace Analysis Group

SEAL Analytical AA3

Continuous segmented-flow colorimetry for automated marine and freshwater nutrient analysis.

Role in the facility

The AA3 is one of two five-channel continuous segmented-flow analyzers in the Nutrient Analytical Facility. It automates colorimetric chemistry and optical detection across a sequence of samples, standards, blanks, and quality-control materials.

5 channelsparallel analytical chemistry
Segmented flowcontrolled reactions and washout
Environmental watermarine and freshwater samples

Current nutrient suite

The facility reports nitrate, nitrite, phosphate, silicic acid, and ammonium. Instrument assignment, calibration range, method details, quality-control acceptance, and reporting limits depend on the run and should be confirmed with facility staff.