Spectrographic detection of airborne fluorine

Air Pollution

“…Spectrographic procedures for determining airborne fluoride as SrF2 or SiF4 were studied, but the sensitivities achieved proved insufficient for atmospheric analyses (42,48). A silica gel tube procedure for analysis of hydrogen fluoride in the field has been described (262).…”

Emission Spectrometry.

“…Burrows and Horwood described two methods for the determination of fluorine and fluorinated compounds in air. In one (57) the fluorine is reacted with silicon to form SiF4, and the silicon is determined with a spark discharge. In the other method (58) the air is drawn through a flame containing strontium, and the SrF spectrum is observed.…”