Research Article
New Stability Indicating Method for Quantification of Impurities in Amlodipine and Valsartan Tablets by Validated HPLC
Table 1
Elution: gradient.
| | Time (min) | Composition of mobile phase | Elution | | % A | % B |
| | 0.01 | 100 | 0 | Isocratic | | 20 | 100 | 0 | Isocratic | | 60 | 40 | 60 | Linear gradient | | 62 | 100 | 0 | Reequilibration | | 75 | 100 | 0 | Reequilibration |
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