[Comparison of non-protected fluid room temperature phosphorescence and micellar-stabilized room temperature phosphorescence properties of indole-3-butyric acid].
For indole-3-butyric acid (IBA), the non-protected fluid room temperature phosphorescence (NP-RTP) and the fluid room temperature phosphorescence with polymeric dispersant polyethyleneglycol-200 (PEG-200), PEG-400 or non-ionic surfactant Tween-20, Tween-40, Tween-80, Tween-85, Brij35 and emulsifier OP as a medium have been studied in detail. When the surfactants or polymeric dispersants were added to the NP-RTP system, the profile of RTP spectrum was not changed, but the RTP intensity and the pre-irradiation time required to attain a stable RTP signal were increased. Whether the surfactants or polymeric dispersants were added to the system or not, no RTP signal was observed when TlNO3 was used as a heavy atom perturber (HAP), but intense RTP emissions were observed when KI was present as HAP. Recoveries of 95.2%-104% with relative standard deviations of 2.4%-4.0% were obtained in spiked water and soil samples.
Long
Wen-qing
WQ
Department of Chemistry, Jinggangshan College, Ji'an 343009, China.
D007211:Indoles / Q000737:chemistry*; D008163:Luminescent Measurements / Q000379:methods*; D008823:Micelles; D011092:Polyethylene Glycols / Q000737:chemistry; D011136:Polysorbates / Q000737:chemistry; D015203:Reproducibility of Results; D012987:Soil / Q000032:analysis; D012996:Solutions / Q000737:chemistry; D013696:Temperature
D007211:Indoles; D008823:Micelles; D011136:Polysorbates; D012987:Soil; D012996:Solutions; C014612:indolebutyric acid; D011092:Polyethylene Glycols