国产一级a毛一级a看免费视频,久久久久久国产一级AV片,免费一级做a爰片久久毛片潮,国产精品女人精品久久久天天,99久久久无码国产精品免费了

Introduction
Vycor® is often used at the end of a reference electrode or a bridge tube to allow electrical,
ionic conductivity between the bulk of the solution and the internal filling solution, while
preventing large scale convective mixing of the solutions. Vycor, or "thirsty glass" is a porous
glass with a fairly low leak rate.
The Vycor frits, however, are not immortal!
To preserve their useful lifetime, they should be kept wet. If they are allowed to dry out,
solid crystals can clog the narrow pores and increase the electrical resistance. In extreme
cases, the Vycor can crack upon drying out.
When not in use, the reference electrode or bridge tube can be stored with the Vycor frit
immersed in distilled water. Diffusion through the Vycor is fairly slow, and the internal filling
solution will not be diluted, even upon a few weeks of storage.

An alternative is to replace the small plastic cap that was in place when the reference
electrode was shipped.

提供商	美國Gamry電化學	下載次數	88次
資料大小	50.9KB	資料類型	PDF 文件 免費下載該資料
資料圖片	--	瀏覽次數	3048次