Porvair Sciences part of the Porvair Group

SEAL Analytical

AQ1 Discrete Analyzer

AQ1 Discrete Analyzer

SEAL AQ1 Discrete Analyzer

With the addition of the AQ1 Discrete Analyzer to the SEAL Analytical nutrient analyzer family there is now a nutrient analyzer for every size laboratory and budget. The AQ1 Discrete Analyzer brings all the same benefits as the AQ2 Discrete Analyzer, but with a smaller footprint and smaller sample throughput- ideal for laboratories with less space or smaller workloads. Designed specifically for nutrient analysis on environmental samples, it is perfect for immediate results on many different parameters from the same sample.  In the AQ1 all environmental samples are read in exactly the same way, giving you the best reproducibility, the lowest detection limits and a unique design that ensures no cross contamination even when ammonia, nitrate with cadmium reduction and phenol are run together. Designed specifically for environmental samples, with no compromise.

Why Choose the AQ1 for Your Nutrient Analysis?

Discrete Analyzer Methods

How Do Seal AQ1 Discrete Analyzers Work?

Why Choose the AQ1 for Your Nutrient Analysis?

  • 10mm path length for maximum sensitivity
  • Best reproducibility
  • Lowest detection limits (parts per billion)
  • Economical- save money on reagent and waste costs, with less than 50ul waste per sample,
  • Run up to seven different chemistries from each sample in the same run.
  • Auto standard preparation
  • Auto dilution
  • Automatic method changeover
  • Carry over and cross contamination eliminated
  • Completely unattended operation ideal for overnight-programed runs.
  • Scheduling of 1 to 7 tests on a single sample with any analyte in any order
  • Compact Discrete Analyzer designed specifically for the nutrient analysis needs of environmental laboratories
  • Methods have USEPA approval for both wastewater and drinking water.
  • UKAS methods are equivalent to “UK Blue Book”
  • Methods specially optimized for soil analysis.

Discrete Analyzer Methods

The broad range of methods for the AQ1 Discrete Analyzers include analytes important for nutrient analysis of water, wastewater, soils etc.

  • Methods include:
  • Alkalinity
  • Ammonia
  • Chloride
  • Cyanides
  • Nitrate/ Nitrite
  • Nitrite
  • Phenolics
  • Phosphate, ortho
  • Phosphorous, total
  • Silicate
  • Sulfate
  • Total Kjeldahl Nitrogen
  • And more.

How do Seal AQ1 Discrete Analyzers Work?

  • The SEAL AQ1 uses a robotic sampling arm, and a stepper- motor driven syringe to aspirate, dispense and mix precise quantities of sample and reagent into miniaturised test tubes (reaction wells).
  • Samples and reagents are incubated in the reaction wells for a pre-programmed time.
  • A single aliquot is transferred to the stop/ flow Optical Quality Glass Cuvette The absorbance is read in the stationary optical bench for the best signal to noise ratio.
  • Reaction times are programmable from seconds to minutes, with the optimized methods bringing the chemical reaction to full completion and steady state, emulating manual and segmented flow methods.
  • Once the absorbance is ready, the cuvette is automatically and thoroughly cleaned, eliminating carry over and cross contamination.


AQ1 Features

AQ2 Cuvette

Glass Cuvette

  • 100% Optical Quality Glass Cuvette used for precise absorbance measurement 
  • Robust Detection System utilizes a stationary measurement cell
  • 10 mm optimum path length

    AQ2 Disposable Reagent Wedge

    Reagent Wedges

    • Reagent wedges with on-board cooling
    • Use only 20ul - 400 ul reagent per test
    • Reagent expiration date tracked through software
       Low Cost Disposable Reaction Wells

      Reaction Wells

      • Low cost, disposable wells used for each discrete reaction
      • Constant heating and programmable reaction time ensure reaction reaches completion
       Integrated Cadmium Coil

      Cadmium Coil

      • Integrated automated cadmium coil reduction for nitrate/nitrite determination
      • In situ coil regeneration is fully automated through the software
       AQ2 advanced software with QCPro Data Quality Assurance System

      Flexible Software

      • Highly flexible software - designed with user input
      • QCProTM Data Quality Assurance System
      • User specifies QC types, limits and corrective actions upon QC failure