From: Evaluation of six different DNA extraction methods for detection of Mycobacterium tuberculosis by means of PCR-IS6110: preliminary study
A260/A280
A260/A230
(≥1.8)
(<2.0)
Protocol 1
1.96
1.69
Protocol 2
1.24
-0.74
Protocol 3
1.28
0.62
Protocol 4
0.46
0.13
Protocol 5
1.26
Protocol 6
-1.13
0.21