Über die quantitative Analyse von Molybdänverbindungen durch Tetrachlorkohlenstoff

Teflon apparatus for vapor phase destruction of silicate materials

“…In the case of certain samples, gas-phase reactions that either produce decomposition of the matrix or selectively evolve gaseous products of trace elements are highly effective for preventing contamination. These approaches are therefore preferred whenever applicable (1)(2)(3)(4)(5)(6)(7). They are particularly valuable in the case of silicon matrices, which can be volatilized very efficiently to leave residues of nonvolatile impurities.…”

Device to seal ends of gas chromatography columns with a filter disk

“…In the case of certain samples, gas-phase reactions that either produce decomposition of the matrix or selectively evolve gaseous products of trace elements are highly effective for preventing contamination. These approaches are therefore preferred whenever applicable (1)(2)(3)(4)(5)(6)(7). They are particularly valuable in the case of silicon matrices, which can be volatilized very efficiently to leave residues of nonvolatile impurities.…”