A serious chemistry calculator that is packed with features. The most useful of these for biologists are the EA and molecular mass calculator for amino acids, polypeptides and proteins (just type in the peptide sequence) a terminology search facility that queries the IUPAC Compendium of Chemical Technology.
A nice simple app for calculating the volumes needed to make a master mix for multiple PCR reaction. Just enter the volumes you want to use for the single reaction and the app will scale it up for the total number of reactions you specify.
This is another simple app that you can use to determine how much volume is needed to dilute an oligo stock solution of higher concentration down to a specific lower concentration. Units for concentrations and volumes can be selected as preferred.
If you have any favorite IPhone/IPad apps that you use in the lab, or you use any of the above, please let us know in the comments!
In previous articles, I’ve primed you on hypothesis testing and how we are forced to choose between minimising either Type I or Type II errors. In the world of the null hypothesis fetish, the p-value (p) is the most revered number. It may also be the least understood. The p-value is the probability, assuming the […]
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