Table 1 Comparison of S2− levels determined using two methods with the proposed fluorescence sensor and GC/MS.
Samples | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
The proposed method (mmol·L−1) | 0.062 | 0.078 | 0.081 | 0.086 | 0.098 |
GC/MS (mmol·L−1) | 0.06 | 0.075 | 0.083 | 0.089 | 0.096 |
Relative deviation (%) | 3.3 | 4 | −2.4 | −3.4 | 2.1 |
