Research Article
Simultaneous Determination of Dexamethasone, Ondansetron, Granisetron, Tropisetron, and Azasetron in Infusion Samples by HPLC with DAD Detection
Table 4
pH values (mean ± SD;
of the infusion samples over 48 hours.
| Time
(hours) | pH value | | DEX + OND | DEX + GRA | DEX + TRO | AZA |
| | 0 | 5.65 ± 0.01 | 5.52 ± 0.04 | 6.42 ± 0.02 | 4.91 ± 0.05 | | 2 | 5.72 ± 0.04 | 5.43 ± 0.02 | 6.49 ± 0.04 | 4.85 ± 0.02 | | 4 | 5.77 ± 0.03 | 5.55 ± 0.01 | 6.51 ± 0.04 | 4.83 ± 0.01 | | 8 | 5.73 ± 0.01 | 5.57 ± 0.01 | 6.46 ± 0.01 | 4.86 ± 0.06 | | 24 | 5.62 ± 0.02 | 5.50 ± 0.05 | 6.55 ± 0.02 | 4.80 ± 0.03 | | 48 | 5.70 ± 0.01 | 5.58 ± 0.02 | 6.54 ± 0.02 | 4.83 ± 0.02 |
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