Gradients isoconductive

Fig. 3-126. Comparison of the conductivity change resulting from a pure concentration gradient (A) with that obtained under isoconductive conditions (B). - Separator column Waters IC-Pak Anion eluent see Fig. 3-23 (taken from [135]).

In comparing the concentration gradient concept with subsequent chemical suppression, the chromatogram of various inorganic anions in Fig. 3-127 that was obtained with isoconductive eluents clearly shows the limitation of this technique. Although the analysis time for the separation shown is shorter than under isocratic conditions, an improvement in the resolution between the signals, especially in the first part of the... 

Table 3.28 Eluent composition for a concentration gradient (A) and an isoconductive eluent (B) according to Figure 3.206.

P.N. Nesterenko and A.V. Ivanov. Detection of transition metals during their separation in an isoconductive pH gradient. Journal of Chromatography A 671 95-99,1994. 

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