The Nitrogen Detector in Gas Chromatography

Alternate indexes of variation for the analysis of experimental data

“…GC/FTIR Results. An infrared spectrophotometer may be considered also as a potential "nitrogen-selective" GC detector (11), just as is the thermionic detector. GC/IR is beginning to be applied more frequently as a qualitative technique to trace environmental problems (12,13).…”

“…The informing power of a two-dimensional measurement lies in the large number of information channels which increase by the product of the number of channels in each dimension, 0003-2700/84/0356-0486$0 1.50/0 provided that the measurement dimensions are uncorrelated. When one measurement dimension, which has few degrees of freedom and can be modeled, is combined with a second measurement dimension of higher informing power (more independent information channels), one can utilize the benefits of each dimension for the resolution of mixtures (11,12). By fitting the data along the lower informing power dimension using a physical model to provide a functional form, one can extract the richer analytical information from the other dimension.…”

“…Because of the independent nature of the two dimensions, considerably more overlap can be tolerated than with one-dimensional curve fitting (13). Example applications of this reiterative least-squares method have included timeresolved fluorescence spectrometry (11) and GC/MS (12).…”

Encapsulation of gases in powder solid matrices and their applications: A review

“…Nitrogen, together with Ar and He, is extensively used for running analytical equipment (e.g. gas chromatography) [8], [11]. Nitrogen and CO 2 are also be used to modify the atmosphere in order to control the rate of respiration of agricultural products such as fruits and vegetables to extend their selflife and retard the growth of undesirable organisms during storage [12].…”