We aspirated our sample into the acteylene flame (which was 1/2 foot long and 1 foor high) then measured the absorbtion of a beam of ligt produced by a calcium cathode lamp.
Only it was 5 hours with chem boy getting all bitchy. :(
(He hounds my lack of pipette skills... which I lack)
And SOOO Many solutions! We made about 36 flasks with assorted mixtures of sample, aluminiun, calcium and strontium. The strontium turns bright pink wen ignited :)