Practical mehod for emulsions. can e used as an assesment of practical technique. Measurments of small volumes best done with teat pipettes. Also I found it better to use diluted washing up liquid rather than straight from the bottle. A 25% solution of detergent works well. Results can be difficult to measure because of frothing but that then lends itself to a better evaluation of the method.
Tes classic free licence
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