Cui H, Xie CG, Lai CZ. A novel chemiluminescent method for determination of phloroglucinol.
LUMINESCENCE 2003;
18:318-23. [PMID:
14694420 DOI:
10.1002/bio.740]
[Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
It was found that the inhibition and enhancement by phloroglucinol of the chemiluminescence from the luminol-K3Fe(CN)6 system were dependent on the pH of luminol solution and the concentration of phloroglucinol. In Na2CO(3)-NaHCO3 buffer, phloroglucinol exhibited strong chemiluminescent enhancement at pH 9.4. On this basis, a flow injection method was developed for the determination of phloroglucinol. The method was simple, rapid, convenient and sensitive, with a detection limit of 2.0 x 10(-9) mol/L. It is effective for determining phloroglucinol in the range of 1.0 x 10(-5)-5.0 x 10(-9) mol/L. The relative standard deviation is 1.3% within one day and 3.2% between days for the determination of 5.0 x 10(-7) mol/L phloroglucinol. The method has been successfully used to determine phloroglucinol in environmental water, with satisfactory results.
Collapse