potassium-bromate has been researched along with hydroquinone* in 2 studies
2 other study(ies) available for potassium-bromate and hydroquinone
| Article | Year |
|---|---|
A catalytic resonance fluorometry method for determination of hydroquinone and its applications.
Pyronin Y (PY) has a strong resonance fluorescence in sulfuric acid medium. The characteristics of the resonance fluorescence spectra and the factors affecting the spectra were studied. A catalytic resonance fluorometry method for the determination of hydroquinone was proposed based on the catalytic effect of hydroquinone on the oxidation of PY by potassium bromate. The oxidation of PY resulted in the decrease of the resonance fluorescence intensity. The influences of several variables on the sensitivity were studied. At the optimized conditions, the decrease of the resonance fluorescence intensity was in proportion to the concentration of hydroquinone in the range of 4.42-1.60 x 10(3) microg l(-1), and the detection limit was 1.46 microg l(-1). The proposed method was applied successfully for the determination of trace hydroquinone in environment samples. The relative standard deviation was less than 3.90% and the recoveries were in the range of 95.2-104.0%. Topics: Bromates; Catalysis; Environment; Hydroquinones; Pyronine; Sensitivity and Specificity; Spectrometry, Fluorescence; Sulfuric Acids; Temperature; Time Factors; Water | 2009 |
Organotropic formation and disappearance of 8-hydroxydeoxyguanosine in the kidney of Sprague-Dawley rats exposed to adriamycin and KBrO3.
A form of oxidative DNA damage, 8-hydroxydeoxyguanosine (8-OHdG), was comparatively determined for 48 h in the kidney and liver isolated from Sprague-Dawley rats i.p. treated with Adriamycin; potassium bromate (KBrO3), hydroquinone and vitamin A. HPLC-ECD analysis system showed that Adriamycin and KBrO3, renal carcinogens, induced higher levels of 8-OHdG in the target organ of kidney (12-13.8 residues/10(4) dG(deoxyguanosine)) compared to those in the liver (3.4-3.8 residues/10(4) dG) and showed highly persistent levels (8 residues, 10(4) dG) in the kidney. The data suggest that the organotropic persistence of 8-OHdG may provide a useful marker for identifying target organ systems in oxidative chemical carcinogenesis and screening free radical-generating carcinogens. Topics: 8-Hydroxy-2'-Deoxyguanosine; Animals; Bromates; Carcinogens; Deoxyguanosine; Doxorubicin; Enzyme Induction; Female; Hydroquinones; Kidney; Male; Rats; Rats, Sprague-Dawley; Vitamin A | 1993 |