Eluents sodium phthalate

Fig. 6-16. Indirect photometric detection of various inorganic anions. - Separator column 250 mm x 4 mm I.D. SAR-40-0.6 eluent 0.001 mol/L sodium phthalate (pH 7 to 8) flow rate 2 mL/min detection UV (285 nm, indirect) injection volume 20 pL solute concentrations 106 ppm chloride, 138 ppm nitrite, 400 ppm bromide, 310 ppm nitrate, and 480 ppm sulfate (taken from [29]).

Table 3.5. Relative retention times (min) of selected anions on columns prepared from trimethylamine (TMA), tributylamine (TBA) and tributylphosphine (TBP). Eluent 2.2 mM sodium phthalate at pH 6.0.

Figure 2. Ion chromatographic separation of a series of anions on polymer-based column with adsorbed decyl-2.2.2 using gradient capacity from sodium hydroxide to lithium hydroxide aqueous eluent. Anions 1) fluoride 2) acetate 3) chloride 4) nitrite 5) bromide 6) nitrate 7) sulfate 8) oxalate 9) chromate 10) iodide 11) phosphate 12) phthalate 13) citrate 14) thiocyanate (from refs. 13,14)...

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