Jd. Willis et al., DETERMINATION OF LOW-LEVELS OF NITROGEN-OXIDES IN GAS STREAMS BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHIC DETERMINATION OF THE SALTZMAN COMPLEX, Analyst, 119(3), 1994, pp. 389-392
The use of high-performance liquid chromatography is described as an a
lternative analytical finish to the Saltzman method for the determinat
ion of nitrogen oxides (NO(x)) by the formation of a diazonium salt. T
his method can be applied to the determination of NO(x) in the range 1
-50 ppb v/v in hydrocarbon gas stream matrices.