Description
The Tristar II Plus provides high-quality surface area and porosity measurements on powders by using the technique of gas adsorption. The TriStar II is a fully automated, three-station analyzer capable of increasing the speed and efficiency of quality control analyses, with the accuracy, resolution, and data reduction to meet most research needs. Note that this instrument does not quantify % porosity, a gas pycnometer is needed for such data. The instrument is not equipped to characterize micropores (<2 nm).
Requirements:
- surface area: minimum = 1 sq. meter, recommended = > 5 sq. meters*
- pore size: minimum = 1.7 nanometers, recommended = 20-200 nanometers
- pore volume: minimum = 4E-6 cubic centimeters per gram, recommended = 2E-5 cubic centimeters per gram
*Although 5 sq. meters is recommended, usable results have been obtained with as little as 0.2 sq. meters of material by the manufacturer and as little as 0.1 sq. meters by an ASU customer.
METAL is only accepting powder samples for analysis on this instrument unless specific documentation or published papers can be shown to prove analysis success on other sample types.
Techniques
- Surface area and porosity measurements on solids by gas adsorption
Documents and manuals
Rates
| Service or material | ASU rate | Nonprofit or academic rate | Notes |
|---|---|---|---|
| Analysis | $27/sample | $75/sample | |
| Liquid nitrogen fill | $30/fill | $80/fill | 3 samples per fill |
