TL – 2800 Ammonia Analyzer

  • Continuous flow system for the detection and analysis of inorganic nitrogen in aqueous solutions.
  • Ultra-sensitive ammonia detection down to the ppb level is easily achievable with a cycle time of 1.5-2.5 minute per sample.
  • The optional activated zinc reduction cartridge allows for the analysis of nitrate in addition to ammonia.
  • Patented gas diffusion / conductivity principle provides results unaffected by sample turbidity or color.
  • Low maintenance sample introduction via peristaltic pump.

Description

  • Continuous flow system for the detection and analysis of inorganic nitrogen in aqueous solutions.
  • Ultra-sensitive ammonia detection down to the ppb level is easily achievable with a cycle time of 1.5-2.5 minute per sample.
  • The optional activated zinc reduction cartridge allows for the analysis of nitrate in addition to ammonia.
  • Patented gas diffusion / conductivity principle provides results unaffected by sample turbidity or color.
  • Low maintenance sample introduction via peristaltic pump.

Applications

  • Soil and Plant Tissue Extracts
  • Wastewater (EPA Approved Method for Clean Water Act Applications)
  • Kjeldahl Digestates (no distillation step required)
  • Manure Samples
  • Drinking Water
  • Urea Analysis via conversion with urease

Software & Automated Operation

  • Built in Windows 10 computer
  • Software runs on Microsoft Windows 7 operating system or higher
  • Easy connection to networks, printers, or external USB drives
  • The TL-2800 is typically paired with an autosampler to facilitate automated operation. Three autosampler options are available to accommodate a wide range of sample volumes.

Principle of Operation

The Timberline TL-2800 Ammonia Analyzer is based on the principle of gas diffusion across a membrane coupled with electrical conductivity measurement as first described by Carlson.The peristaltic pump directs the sample, caustic, and absorbing solutions into the diffusion membrane cell where the sample is mixed with the caustic. The resulting solution has a pH sufficiently high (pH 11-13) to convert virtually all the ammonium ion present in the sample to dissolved ammonia gas. The dissolved ammonia gas in the sample / caustic mixture diffuses across the hydrophobic membrane where it is absorbed by a buffered solution flowing on the inside. The buffered solution then flows into the conductivity detector. The change in electrical conductance of the absorbing solution is proportional to the concentration of ammonium in the original sample. Passing the sample/caustic mixture through an optional zinc reduction cartridge reduces nitrate and nitrite ions to ammonium, allowing measurement of the total inorganic nitrogen concentration.2

1Carlson, R.M.; Anal. Chem., 50(1978) 1528. 2Carlson, R.M.; Anal. Chem., 58(1986) 1590.

Features

  • High sample throughput with a 1.5-2.5 minute analysis time
  • Low maintenance – sample introduction via peristaltic pump
  • Results unaffected by sample turbidity or color
  • Built-in Microsoft Windows 7 Operating System
  • Software with an intuitive graphical user interface
  • Minimal reagent requirements – only dilute borate buffer, dilute sodium hydroxide, and deionized water
  • Multiple ranges for concentrations from ppb to %

Specifications

  • Dimensions: 6.5″H x 18.5″W x 20.5″D
  • Weight: 21 lbs
  • Principles of Operation: Membrane Diffusion / Conductivity detection
  • Concentration Range (Standard Sensitivity Membrane): Standard Sensitivity: 50 ppb to 500 ppm
  • Sample Rate: One sample every 1.5-3 minutes
  • Required Reagents: Sodium or Potassium Hydroxide, DTPA, Deionized Water, Boric Acid, Ammonium Hydroxide
  • Flow Path Wetted Parts: Polymers, PVC , SS, Electrodes-gold plated
  • Power Supply: 120 VAC or 240 VAC 50/60Hz

Products

  • Model TL-2800 Single Channel Ammonia and Nitrate Analyzer – Part Number: 2800
  • Model TL-2900 Dual Channel Ammonia and Nitrate Analyzer – Part Number: 2900
  • Zinc Reduction Cartridge, 10/pkg – Part Number: 2001
  • Replacement Peristaltic Pump Cartridge – Part Number: 2004
  • High Sensitivity Membrane – Part Number: 2010
  • Standard Sensitivity Membrane – Part Number: 2050
  • Low Sensitivity Membrane – Part Number: 2060
  • Back Pressure Regulator (Nominal 6 psi) – Part Number: 2070
  • Conductivity Cell – Part Number: 2080
  • Peristaltic Pump Tubing, 1.02mm ID, 12/pkg – Part Number: 2082
  • Peristaltic Pump Tubing, 1.42mm ID, 12/pkg – Part Number: 2083
  • Tubing Kit – 1.14mm ID and 1.42 mm ID Flexible PVC Tubing – Part Number: 2084
  • Fitting Accessory Kit – Part Number: 2085
  • Peristaltic Pump Tubing, 1.6mm ID, 12/pkg – Part Number: 2086
  • Timberline Autosampler Accessory Kit – Part Number: 2087

Downloads

Water
Agriculture
Wastewater
TL-2800 Instruction Manual
TL-2900 Instruction Manual
EPA Federal Register
EPA ATP Review Letter
EPA R7 Approval for Iowa NPDES Facilities
Timberline Ammonia EPA Method
Single Channel Software Manual
Dual Channel Software Manual
Low Level Detection of Ammonia Webinar