Stability
Stability is an important factor in field applications. The test strips were stored at room temperature (18–25 °C) and at 4 °C. The stability test was carried out for both groups of strips at 0, 1, 2, 3, 4, 5, 6, 7, and 8 months. Table 2 shows that the strip can be stored for up to 4 months at room temperature and for up to 6 months at 4 °C.
Table 2 │Test strip stability