Abstract

Pulse introduction of a sample into a graphite furnace requires that the sample be heated rapidly enough that the evaporation time is much shorter than the retention time. To achieve that condition, in the graphite cuvette L'vov used an additional power source. In a Mass-mann-type furnace the graphite tube containing the dried sample is heated quickly by a powerful ac current to obtain the desired short evaporation time. The simplest way of sample heating is in a Woodriff constant-temperature furnace. The furnace is kept continuously at high temperature and a graphite crucible containing the dried sample is introduced into the furnace. The crucible is heated by conduction and radiation fast enough that the evaporation time is short compared to the residence time. This technique has been applied to a number of problems.

PDF Article

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription