Generation of chemiluminescence upon reaction of iodine with luminol in reversed micelles and its analytical applicability

Chemiluminescence from an Oxidation Reaction of Rhodamine B with Cerium(IV) in a Reversed Micellar Medium of Cetyltrimethylammonium Chloride in 1-Hexanol-Cyclohexane/Water

“…1, a multi-component instrument, composed of a Hitachi (Tokyo) Model K-1000 FI analyzer, equipped with a 16-port rotary, programmed automatic injection valve, a Tosoh (Tokyo) Model CCPM-II computer-controlled pump unit, and a Niti-on (Funahashi) Model LF-800 photometer with a spiral flow cell (70 mm 3 ), was used as before. [5][6][7][8]15,17,36 The injection loops of the RB sample and reversed micellar Ce(IV) reagent solutions were 100 mm 3 in volume. PTFE tubing of 0.5 mm i.d.…”

“…3 In order to achieve enhanced sensitivity and improved selectivity in addition to other advantages, the CTAC reversed micellar medium has been successfully used to combine a solvent-extraction technique with the CL detection system based on the luminol oxidation in our previous studies. [15][16][17][18][19][20] After solvent extraction, it is possible to mix the extract directly with a reversed micellar solution of luminol dispersed in oil. Thus, we can avoid a relatively tedious procedure, like back extraction into the aqueous phase or evaporation of the solvent, which is required to use conventional aqueous solutions for CL measurements.…”

Flow Chemiluminescence Determination of Antimony(III,V) Using a Rhodamine B-Cetyltrimethylammonium Chloride Reversed Micelle System Following Liquid-Liquid Extraction

“…When reversed micelles are incorporated into the CL detection system, several advantages, including sensitivity and improved selectivity, are achieved. [18][19][20][21][22][23][24][25][26][27]29 It is believed that the reversed micellar-mediated CL (RMM-CL) reactions occur at water-surfactant interfaces of the reverse micelles. 18,19,23 We have pointed out that the uptake of CL-active species or CL reagents by reversed micelles into their water pools is significant in the RMM-CL process.…”

“…[18][19][20][21][22][23][24][25][26][27]29 It is believed that the reversed micellar-mediated CL (RMM-CL) reactions occur at water-surfactant interfaces of the reverse micelles. 18,19,23 We have pointed out that the uptake of CL-active species or CL reagents by reversed micelles into their water pools is significant in the RMM-CL process. 20,21,24,25,[27][28][29] In our previous work, the RMM-CL behavior of RB was investigated using the acidic water pool containing the Ce(IV) oxidant in the reversed micellar medium of cetyltrimethylammonium chloride (CTAC) in 1-hexanol-cyclohexane.…”

“…We have developed new hybrid analytical methods based on the combination of extraction procedures with the RMM-CL detection system. 19,22,25,26 For the liquid-liquid extraction of Sb(V), an ion-pair formation between the protonated rhodamine B, RBH + , and the negatively charged Sb(V) chloro-complex, [SbCl6]…”