[Highly sensitive spectrofluorimetric determination of trace amounts of chromium (VI) with mono[6-o-(4-aminobenzoic acid)]-beta-cyclodextrin].
A novel fluorescence probe, mono[6-o-(4-aminobenzoic acid)]-beta-cyclodextrin(ACD), was synthesized, and a new sensitive fluorescence identification reaction was studied based on the reaction of Cr2O7(2-) with compound ACD in NaAc-HAc buffer medium at pH 4.90. Under optimal conditions the determination limit was 1.26 microg x L(-1). The linear range was 5.20-1040 microg x L(-1). This method has been applied to the determination of trace amounts of chromium (VI) in electroplating liquor, electroplating waste water with satisfactory results.
Zhang
Li
L
College of Chemistry and Materials Science, Anhui Normal University, Wuhu, China.
She
Shi-ke
SK
Gao
Feng
F
Zhou
Yun-you
YY
Zhu
Chang-qing
CQ
Wang
Lun
L
D002857:Chromium / Q000032:analysis* / Q000737:chemistry; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D015203:Reproducibility of Results; D013050:Spectrometry, Fluorescence / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis; D047392:beta-Cyclodextrins / Q000138:chemical synthesis / Q000737:chemistry*
D005456:Fluorescent Dyes; D014874:Water Pollutants, Chemical; D047392:beta-Cyclodextrins; C549857:mono(6-O-(4-aminobenzoic acid))-beta-cyclodextrin; D002857:Chromium; C031215:betadex