Flame anneal and then oven anneal. This operation must be done in a fume hood. Once the copper is dissolved, drain and rinse with distilled water. First with the dewar held as shown, silver up to the ring seal. Invert and silver to shoulder of 41mm and 16mm.
Capillary sample is held in cut out section of rod.
Rod is lowered into LN2 to freeze sample. Sample is held concentrically in viewing area and analyzed by laser. Return to Robert J. Ponton's page.