Table 1. Characterization of purified DNAs and RNAs from tobacco leaf.

Method		DNA			RNA
Buffer	Column	Yield (μg) per 100 mg leaf	260/280nm absorbance ratio	260/230nm absorbance ratio	Yield (μg) per 100 mg leaf	260/280nm absorbance ratio	260/230nm absorbance ratio
Qiagen	Qiagen	1.67 ± 0.70	2.23 ± 0.49	2.93 ± 4.03	14.4 ± 1.2	2.15 ± 0.01	2.29 ± 0.07
	Recharged	4.52 ± 0.32	1.98 ± 0.08	1.21 ± 0.10	17.2 ± 4.1	2.13 ± 0.01	1.78 ± 0.35
	Homemade	2.85 ± 1.14	1.98 ± 0.18	1.23 ± 0.10	16.0 ± 4.8	2.12 ± 0.02	1.81 ± 0.58
Homemade	Qiagen	5.65 ± 0.72	1.81 ± 0.05	5.03 ± 3.12	11.1 ± 6.3	2.13 ± 0.01	2.37 ± 0.05
	Recharged	7.06 ± 0.81	1.73 ± 0.04	1.53 ± 0.38	15.7 ± 8.8	2.06 ± 0.05	2.32 ± 0.15
	Homemade	5.53 ± 0.88	1.61 ± 0.11	1.37 ± 0.34	18.0 ± 6.4	2.00 ± 0.03	2.46 ± 0.04