| Popis: |
Further refinement of the apparatus described by Goyan and Reck has been studied, using thermistors. One variation described involves the use of intermittent power with simultaneous recording. Another variation treats the problem of using relatively high battery voltages in order to increase the sensitivity of the bridge without the use of amplifiers. The paper discusses the determination of molecular weights, as well as osmometry and isotonicity measurements. Results indicate that significant measurements can be made without minimizing the heating produced by the bridge current. |
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