Test principle

In an acidic environment, inorganic phosphorus reacts with ammonium molybdate, generating ammonium phosphomolybdate complex which shows absorption at the wavelength of 340 nm. The absorbance is proportional to the concentration of inorganic phosphorus.

Product Features

1.    Linear range of P level: [0.30, 4.00] mmol/L

Linear correlation coefficient ∣r∣≥0.990

Linear deviation ≤ ± 10.00%

2.    Absorbance of blank ≤ 1.00  

3.    Sensitivity

The change in absorbance (ΔA) ≥ 0.01 while testing the specific P sample of concentration of 1.71 mmol/L.

4.    Accuracy

Relative deviation is within ±10%.

5.    Precision

Intra CV% ≤ 5.0%; inter CV% ≤ 5.0%.

Technical Parameters

Reference range of P level: 0.30 – 4.00 mmol/L.

Packing Specifications

R1: 1×40 ml, R2: 2×20 ml

R1: 4×40 ml, R2: 8×20 ml

R1: 1×100 ml, R2: 2×50 ml

R1: 2×100 ml, R2: 4×50 ml

R1: 3×100 ml, R2: 6×50 ml

Storage and stability

Unopened: Store test kits at 10 - 30℃ protected from light. Stable to expiration date printed on individual vials (for 15 months).

Opened: Store test kits at 10 - 30℃ protected from light. Stable for 1 month if kept capped from original container and free from contamination.

Do not freeze the test kit.