#Base line is nothing but the detectors response to the

mobile phase.(gc,hplc)

#Base line should be stable to start a run.

#Un stabilized base line is called as base line noise.

#Base line noise is of many types..

1)Cyclic base line

2)Synchorinise noise

3)Asynchorinise noise

4)Base line drift

5)Spikes

6)Negative peaks

7)No peaks

#Base line noise is attributed due to mobile phase,sample,

system problems.leaks in the system,temperature variations

in lab etc..