Why the same type of columns showing different RT for a single
product?
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Answer Posted / reet
following factors might be the reason:
1. Column ageing
2. how the column was preserved, or what mobile phase was
used before the present experiment
3. sample preparation might be the cause. sample may be non-
homogeneous
4. Slight variation in thepH may also affect the variation
in RT.
5. Other parameters like,temperature can also be one of the
reason.
6. last but an imporatant factor might be some air bubble
trapped in the system.
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