Comparison of soluble manganese(IV) and acidic potassium permanganate chemiluminescence detection using flow injection and sequential injection analysis for the determination of ascorbic acid in Vitamin C tablets

Anastos, Nicole

doi:10.1016/j.talanta.2004.01.021

Cited by 54 publications

(13 citation statements)

References 13 publications

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“…A recent study underscored the notion that a single high dose of curcumin (0.5−12 g) is safe in healthy human volunteers . Results of a randomized placebo-controlled double-blind study of curcumin (2 g/day for 6 months) in patients with ulcerative colitis seem to suggest that curcumin combined with sulphasalazine or mesalamine seems to prevent relapse , . Pharmacokinetics studies in humans have shown that curcumin is detectable as glucuronide and sulfate conjugates in plasma, and administration of 10 and 12 g has shown plasma concentrations of 35.33 ± 3.78 and 26.57 ± 2.97 μg/mL, respectively, with a ratio of glucuronide to sulfate of 1.92:1 .…”

Section: Curcuminmentioning

confidence: 99%

Bioactive Compounds: Historical Perspectives, Opportunities, and Challenges

Patil¹,

Jayaprakasha²,

Murthy³

et al. 2009

J. Agric. Food Chem.

250

137

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Mom's conventional wisdom of eating fruits and vegetables to lead a healthy life has evolved with scientific, fact-finding research during the past four decades due to advances in science of "Foods for Health". Epidemiological and prospective studies have demonstrated the vital role of fruits, vegetables, and nuts in reducing the risk of cancer and cardiovascular diseases. In recent years, several meta-analyses strongly suggested that by adding one serving of fruits and vegetables to daily diet, the risk of cardiovascular diseases will be decreased up to 7%. The multidisciplinary and partnership efforts of agriculture and medical scientists across the globe stimulated interest in establishing certain interdisciplinary centers and institutes focusing on "Foods for Health". While the consumption of various healthy foods continues, several questions about toxicity, bioavailability, and food-drug interactions of bioactive compounds are yet to be fully understood on the basis of scientific evidence. Recent research on elucidation of the molecular mechanisms to understand the "proof of the concept" will provide the perfect answer when consumers are ready for a "consumer-to-farm" rather than the current "farm-to-consumer" approach. The multidisciplinary research and educational efforts will address the role of healthy foods to improve eye, brain, and heart health while reducing the risk of cancer. Through this connection, this review is an attempt to provide insight and historical perspectives on some of the bioactive compounds from the day of discovery to their current status. The bioactive compounds discussed in this review are flavonoids, carotenoids, curcumin, ascorbic acid, and citrus limonoids.

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Section: Curcuminmentioning

confidence: 99%

Bioactive Compounds: Historical Perspectives, Opportunities, and Challenges

Patil¹,

Jayaprakasha²,

Murthy³

et al. 2009

J. Agric. Food Chem.

250

137

View full text Add to dashboard Cite

show abstract

“…An intense emission is often obtained for readily oxidisable phenols and related compounds, which has been exploited for many analytical applications (Adcock, Francis, & Barnett, 2007). Limits of detection for specific antioxidants (e.g., ascorbic acid, quercetin, catechin, melatonin and caffeic acid) using flow-analysis methodology are typically between 1 and 10 nM (Anastos, Barnett, Hindson, Lenehan, & Lewis, 2004;Costin, Barnett, Lewis, & McGillivery, 2003;Gómez-Taylor Corominas, Catalá Icardo, Lahuerta Zamora, García Mateo, & Martínez Calatayud, 2004). Furthermore, a comparison of the response from six red and six white wine samples indicated that this reagent may be useful for monitoring the total antioxidant levels in wines (Costin et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

A rapid antioxidant assay based on acidic potassium permanganate chemiluminescence

et al. 2010

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“…Sodium hexametaphosphate (SP) has been used in a number of CL reactions in acidic permanganate media . Considering the toxicity of HTe (in the acid condition) and the weak CL intensity of the system in strong acid media or the strong basic medium shown in the experiment, the CL response of the proposed CL reaction in phosphate buffer solution (PBS) with near‐neutral pH was tested.…”

Section: Resultsmentioning

confidence: 99%

“…Barnett et al described procedures for the determination of morphinein and 5‐hydroxytryptamine (serotonin) and related indoles , based on the CL reaction of morphine with acidic potassium permanganate in the presence of sodium hexametaphosphate. Then Barnett et al made a comparison of soluble manganese(IV) and acidic potassium permanganate within the sodium hexametaphosphate CL detection, using flow‐injection and sequential injection analysis for the determination of ascorbic acid in vitamin C tablets. Cardwell et al developed the analysis of arsenite based on the oxidation of the analyte by acidic potassium permanganate in the presence of sodium hexametaphosphate.…”

Section: Introductionmentioning

confidence: 99%

Chemiluminescence behaviour of CdTe–potassium permanganate enhanced by sodium hexametaphosphate and sensitized sensing of l‐ascorbic acid

et al. 2012

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A highly sensitive flow-injection chemiluminescence (FIA-CL) method based on the CdTe nanocrystals and potassium permanganate chemiluminescence system was developed for the determination of L-ascorbic acid. It was found that sodium hexametaphosphate (SP), as an enhancer, could increase the chemiluminescence (CL) emission from the redox reaction of CdTe quantum dots with potassium permanganate in near-neutral pH conditions. L-ascorbic acid is suggested as a sensitive enhancer for use in the above energy-transfer excitation process. Under optimal conditions, the calibration graph of emission intensity against logarithmic l-ascorbic acid concentration was linear in the range 1.0 × 10(-9)-5.0 × 10(-6) mol/L, with a correlation coefficient of 0.9969 and relative standard deviation (RSD) of 2.3% (n = 7) at 5.0 × 10(-7) mol/L. The method was successfully used to determine L-ascorbic acid in vitamin C tablets. The possible mechanism of the chemiluminescence in the system is also discussed.

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Comparison of soluble manganese(IV) and acidic potassium permanganate chemiluminescence detection using flow injection and sequential injection analysis for the determination of ascorbic acid in Vitamin C tablets

Cited by 54 publications

References 13 publications

Bioactive Compounds: Historical Perspectives, Opportunities, and Challenges

Bioactive Compounds: Historical Perspectives, Opportunities, and Challenges

A rapid antioxidant assay based on acidic potassium permanganate chemiluminescence

Chemiluminescence behaviour of CdTe–potassium permanganate enhanced by sodium hexametaphosphate and sensitized sensing of l‐ascorbic acid

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