For optimization,
the fuel rate (nitrous oxide/acetylene ratio) and burner height in nitrous oxide/acetylene flame were simultaneously optimized.
As shown in Fig. 5,
the maximum molecular absorbance for aluminum mono fluoride was gained at a fuel rate of 210 L h—1 and a height of 8 mm above the burner.
The sensitivity in nitrous oxide/acetylene flame at 227.4613 nm was significantly better than that in air/acetylene flame and after optimization experimental/instrumental parameters,
the former is effectively used.