Fungi of the type Aspergillus sp. were immobilized on a cellulosic resin and used as a biosorbent for the on-line preconcentration and separation of Pt(IV) ions prior to their chemiluminescent determination via flow injection analysis. Biosorption and elution conditions were optimized, and the results compared to biosorbents based on the use of Chlorella vulgaris algae and Saccharomyces cerevis...

A novel stripping chemiluminescence (CL) method in situ has been developed which is a combination of selective stripping and CL detection in situ. This method consists of a concentration (pre-electrolysis) step, in which the analyte metal ion is reduced at a controlled potential whilst being deposited as the metal on a solid electrode placed in an electrogenerated chemiluminescence flow cell, a...

H(2)O(2) levels in mother's milk were measured at different times of postpartum periods after birth as well as after different times of storage at freezing temperature. The luminol H(2)O(2) dependent chemiluminescence at pH= 9.8 technique was used. Maximum levels of H(2)O(2) were found in the first week of the postpartum period (24.992 +/- 0.168 microM). The levels of H(2)O(2) decreased signifi...

A novel one-pot method for the synthesis of chemiluminescence functionalized AgNPs has been reported and an ECL sensor has been developed for the detection of M. tuberculosis DNA.

In this article, we study the photoinduced electrochemiluminescence (PECL) of a luminol analog (L-012: 8-amino- 5‑chloro-2,3-dihydro-7-phenyl-pyrido[3,4-d]pyridazine-1,4‑dione) on n-type hematite (α-Fe2O3) nanorod arrays deposited by hydrothermal synthesis transparent conducting oxide. We report that material, when used as photoanode, triggers PECL at potential low -0.2 V vs Ag/AgCl and allows ...

The present study was designed to examine the effect of Pseudomonas aeruginosa alkaline protease and elastase on human polymorphonuclear leukocyte chemiluminescence. Both a luminol-enhanced and a nonenhanced chemiluminescence system using opsonized zymosan were utilized. It was found that alkaline protease and elastase at concentrations of 25 micrograms/ml strongly inhibited luminol-enhanced my...

Chemiluminescence of luminol in a cell-free system was used to investigate the mechanism of alloxan-dependent free-radical generation. In the presence of alloxan and reduced glutathione (GSH), luminescence was greatly stimulated by FeSO4. Replacing GSH by oxidized glutathione or NAD(P)(H), or replacing FeSO4 by CUS04, ZnSO4 or FeCl3, did not yield chemiluminescence. The chemiluminescence of a m...