Chemiluminescence From the Reaction of Chloroauric Acid With Luminol in Reverse Micelles and Its Application to the Determination of Trace Level of Gold

Indirect Atomic Absorption Determination of Cocaine via Formation and Liquid‐liquid Extraction of the Iron(III)‐cocaine Complex

“…The preliminary data obtained suggests that this method could be extended to the on-line determination of cocaine and possibly other alkaloids too. Besides, the analytical utilities of micellar media [39][40][41][42][43][44] can also be incorporated for the trace level analysis using a chemiluminescence detection system. These will be included in our future work.…”

Chemiluminescence determination of iodide and/or iodine using a luminol–hexadecyltrimethylammonium chloride reversed micelle system following on-line oxidation and extraction

“…1) were chosen so as to optimize the phase separation efficiency, leading to high CL intensity. Although chloroform was used for extraction in our previous studies, [20][21][22] the CL intensity obtained by using cyclohexane as a solvent was about 2-fold greater than that with chloroform. In this work, cyclohexane was thus selected as the extractant.…”

“…15 With the additional advantage of sensitivity, the microreactor has the capability to transfer species of experimental interest quantitatively into the water pool and convert them into CL active species at the surfactant/ water interface, 14,16,17 where the reversed micellar mediated CL (RMM-CL) reactions are believed to occur. 13,18 New CL methods for the trace level quantification of iodine, 14 gold-(III), [19][20][21][22] rhodium(III), 23 iron(III), 16,24 iron(II), 24 vanadium(IV) 17,18 and atropine 25 were developed using flow systems and the aforementioned problems associated with aqueous phase CL detection were either eliminated or greatly reduced by coupling solvent extraction directly to the RMM-CL detection. Previously, we have indicated the possible analytical usefulness of the RMM-CL reaction of luminol with iodine.…”

Reversed Micellar-Mediated Luminol Chemiluminescence Reaction with Bis(acetylacetonato)oxovanadium(IV)

“…The area with the most applications of reversed micellar media in spectrometry may be that of chemiluminescence (CL) analysis [1][2][3][4][5] , where the significance of reverse micelles is attributed to their unique structure (shape/size) and composition; besides other advantages, enhanced sensitivity can be achieved when reverse micelles are incorporated in the CL analysis. Most of our analytical work in this area has concerned the use of reverse micelles to enhance the performance of the CL methods for analysis of metal complexes in organic media, mainly combined with solvent extraction techniques: [6][7][8][9] the extract can be mixed directly with a macroscopically homogeneous solution of reverse micelles containing a luminescent reagent like luminol. The reversed micellar luminescent solution is produced by dispersing an aqueous solution of luminol in the bulk non-polar organic media containing surfactant molecules.…”