I'd like to buy two, but they are different models. One is 16 by 0.2 ml, and the other is 6 by 1.5 ml. I would like to ask. Are they the same price in different specifications?
For the stirring head, we usually use that kind of plastic material, because the steel one may contaminate the sample. Can we also replace it with that kind of plastic material? We generally do not do high temperature, but stir at room temperature.