To minimize the risk of sample contamination, filtered pipet tips were exclusively employed in all steps, and separate work areas were maintained for punching discs from blood spots, extracting gDNA, preparing reaction mixtures, and assembling reaction plates.
Contamination was minimised by preparing reaction mixtures in a dedicated clean room with reagents aliquoted into single use volumes.
Because the N.F.I.B. wanted to distribute its views the moment the Supreme Court spoke, Mr. Summers also prepared reactions to be published in the event of a split verdict or a decision to strike down the whole law.
Three NaOH dosages of 6.0 mM (corresponding to a low pH), 7.8 mM (a medium pH, near the optimal condition), and 9.0 mM (a high pH) were used to prepare reaction-time-dependent samples under different pH conditions.
Thankfully, we already know how to respond to natural disasters - utilities extensively prepare reaction plans and consistently deal with bad weather, earthquakes, etc.
To avoid contamination, filter tips were used to prepare the PCR reactions and separate rooms were used to prepare reaction buffers, to extract DNA, and to examine PCR products.
The 2x RT master mix was prepared using the kit components before preparing the reaction plate.
In order to examine this, we prepared fusion reactions performed at 4°, where docking should be facilitated, and reactions performed at 37°, for analysis by electron microscopy (EM).
The reaction mix was prepared in reaction capillaries and a single cell, picked by micromanipulation, was added to this mix.
DNA/protamine complexes were prepared by reactions between DNA and protamine sulfate solutions with stirring.
