This product allows to measure Ammonium ion (NH4+) concentration in the sample.

Product Name Reagent Set for Water Analyzer No.17A Ammonium
Model LR-NH4-A
Measureing Method Indophenol Blue Method
Range <Ammonium> 0.10 ∼ 4.00 mg/L
<Ammonium-Nitrogen> 0.08 ∼ 3.20 mg/L
Reaction Time 5 min.
Quantity 30
Outer Box Size 160L × 52W × 107H mm
Total Weight approx. 235 g
  • Measuring Range and Reaction Time shown for reference using Lambda-9000. They may be different depending on other types of measuring instrument or spectrophotometer you are using.

    Seawater and sample with many coexisting substances

    Use of this product may cause turbidity or abnormal color development when measuring seawater or sample with many coexisting substances. Please distill the sample to separate ammonium before the measurement. Following product is available for distillation (sold separately).
    Product Name Model Quantity (pcs./box)
    Water Analysis Set : Ammonium (Low Range) WA-NH4(L) 30

    Measuring Ammonium in seawater

    When measuring Ammonium in seawater, please use the following product (sold separately).
    Product Name Model Quantity (pcs./box)
    Pretreatment Reagent for Ammonium (Seawater) LR-NH4-M 50