Good afternoon,
12dCh and I discovered, this morning, that PAG5.1 does not work. The mixture does not separate, even following some intervention with other solvents and by trying to "salt it out". This means that we will not be doing PAG 5.1 on Wednesday or Friday and will instead be starting PAG5.2.
If you read this message before the lesson please don't complete your homework and instead we will assess the risk of the chemicals at the start of the lesson, as the DNA.
Yours
Ms Elias
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