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Whether your laboratory is a wastewater treatment plant, a private testing laboratory, a municipality monitoring the quality of drinking water, or other water-testing laboratory, Astoria-Pacific offers the best analyzers for ion/nutrient analysis. For example, we offer the Astoria2 Analyzer, which offers Ammonia via online Gas Diffusion and an alternative to distillation.


And the rAPID-T system (see info at bottom of page)

Our analyzers use many methods established by the USEPA and Standard Methods. Depending on a lab’s reporting limits, we offer several different working ranges for each test on the Astoria and Astoria2 Analyzer.

Typical analysis rates are up to 50 – 90 samplers per hour, depending on testing requirements.

The optional 50mm LWCC can improve detection capabilities by 5 – 10X depending on the test.

OrthoPhosphate - 0.05-2ppb

Click HERE for more info on the 50mm Liquid Waveguide Capillary Cell.

Common tests on the Astoria and Astoria2 Analyzers are:

Test Overall Range* EPA Method#
Ammonia 0.001 – 4 mg/L Method 350.1
Chloride 0.05 – 400 mg/L Method 325.2
Cyanide In-Line Dist 0.0005 – 1.00 mg/L Method 335.3
Post Dist Cyanide 0.0005 – 1.00 mg/L Method 335.4
M.O. Alkalinity 2 – 500 mg/L Method 310.2
Nitrate 0.0005 – 5 mg/L Method 353.2
Orthophosphate 0.0005 – 200 mg/L Method 365.1
Phenol 0.002 – 0.5 mg/L Method 420.2
Sulfate 1 – 300 mg/L Method 375.2
Total Dissolved Nitrogen 0.1 – 10 mg/L N/A
T. Kjeldahl Nitrogen 0.05 – 80 mg/L Method 351.2
T. Phosphorus (TK) 0.01 – 40 mg/L Method 365.4
T. Phosphorus (Per) 0.001 – 2 mg/L Method 365.3


*NOTE: Consult with an API representative for the optimal working range for your laboratory.  

***Please Contact Us for additional testing methodologies***

Please discuss with one of our representatives about the advantages of alternative methods like Cyanide by in-line Distillation and UV Digestion, Phenol by in-line Distillation, or Total Dissolved Nitrogen by in-line UV Digestion.

Water Analysis Brochure


rAPID-T System

Want an inexpensive system? Check out a rAPID-T analyzer for Water and Wastewater analysis:







The rAPID-T is inexpensive and reliable. With a photometer, 40-place sample rack, a 10-place reagent tray, and quick analysis rates of up to 100 tests per hour, the rAPID-T makes quick work of many common tests like:

  • Alkalinity
  • Ammonia
  • Chlorine
  • Cyanide (Post Dist.)
  • HexChrome
  • Nitrate (by Enzymatic or Vanadium)
  • Nitrite
  • Phenol (Post Dist.)
  • OPhos
  • Silica
  • TKN
  • Total Nitrogen (Pers. Digest)
  • Total Phosphorus (Pers. Digest)

Click on link below for Method List and analytical ranges:

rAPID-T Method Summary_040519

I am excited to say that we are now working with Environmental Express as a partner for rAPID-T distribution for Environmental sales in the USA and worldwide.

Environmental Express, Inc., a Cole-Parmer company, is the leading developer, manufacturer and distributor of environmental laboratory equipment and consumable supplies for commercial, governmental, industrial and academic laboratories worldwide. The company provides an entire range of laboratory products used in applications such as water/wastewater analysis, oil and grease analysis, metals analysis and hazardous waste analysis. Their products are sold throughout the world through a strong network of international dealers.

Please find our rAPID-T on EE’s page HERE.