The Picotrace digestion system is for digestion of a wide variety of geological and other materials in acid at high temperature and pressure. It consists of a Teflon-coated hot plate, a hot plate controller, and two digestion blocks which can hold a total of 32 Teflon pressure vessels.

Standard procedure for rock dissolution

What kind of Teflon spray is best?

Can this system dissolve zircons?

What if there is residue after dissolution?

Controller temperature programs

Temperature curves: hot plate vs. the sample block.

Having trouble maintaining the right vessel temperature?

Personal comments on the system

Preparing samples? Here is a schematic of the 32 sample vessels to keep track of your work.