Fluorometric determination of citric and aconitic acids with dicyclohexylcarbodiimide

Chen, Sheng Chih.

doi:10.1021/ac00251a040

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…This compound is known to produce fluorescent compounds upon reaction with amines. Earlier, fluorescence had been reported in the reaction mixtures of citric acid or trans-aconitic acid with DCC [15,16]. Hence, aconitic acid served as starting point of the next step in our efforts to identify the species responsible for the anomalous fluorescence.…”

Section: Resultsmentioning

confidence: 97%

A case study on the myth of emission from aliphatic amides

Singh

Das

Datta

2016

Methods Appl. Fluoresc.

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Section: Resultsmentioning

confidence: 97%

A case study on the myth of emission from aliphatic amides

Singh

Das

Datta

2016

Methods Appl. Fluoresc.

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“…Treatment of citric acid and cis-and frons-aconitic acids with dicyclohexylcarbodiimide in the presence of acetic acid produces fluorescent species which can used in the determination of these acids. At the 50-mmol level, the standard deviations ranged between 5.26 and 6.75% (17).…”

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confidence: 97%

Functional group analysis

Smith¹,

Patterson²

1984

Anal. Chem.

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“…Carbodiimides are widely used as excellent coupling or dehydrating agents in synthesis (1)(2)(3) and analysis (3)(4)(5)(6)(7)(8)(9)(10). Recently, Wilchek and co-workers (10,11) have demonstrated their cleaving activity on pyridine (eq 1) and established a colorimetric method for the determination of carbodiimides (10).…”

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Dicyclohexylcarbodiimide as a cleaving agent for colorimetric determination of pyridyl and pyrimidinyl compounds

Chen¹

1985

Anal. Chem.

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1461were dispersed within each other with sufficient reproducibility that standard addition could be performed over a wide, controllable range of standard/analyte concentration ratios. I t is interesting to observe that the new variant of the gradient technique is partially based on the underlying concept of FIA titration ( I ) , where elements of fluid with identical D values are exploited, and partially on the concept of zone penetration (5) as designed for selectivity measurements, where elements of fluid with identical delay times t were used.Thus, another variation of the concept dispersed sample zone has been discovered and exploited. Its use is not limited to flame methods, as reaction based assays, like spectrophotometry, would equally benefit from the novel way of performing standard addition. Instruments equipped with photodiode arrays and appropriate fast data collection and storage facilities should increasingly find use in future applications.By use of dlcyclohexylcarbodAmIde (DCC) and dimethylbarblturic acid (DMBA) as reagents, a colorlmetric method for the deterrninatlon of pyrldyl and pyrlmldlnyl compounds has been established. DCC breaks the pyrldlne or pyrlmldine ring to afford giutaconaldehyde or maionaldehyde and then reacts wlth DMBA to produce chromophores. These heterocycles could be determined by measuring the chromophores. The reiatlve standard devlatlons obtained with different amounts of these compounds were In the range of 0.63 to 5.36% ( n

show abstract

Fluorometric determination of citric and aconitic acids with dicyclohexylcarbodiimide

Cited by 5 publications

References 20 publications

A case study on the myth of emission from aliphatic amides

A case study on the myth of emission from aliphatic amides

Functional group analysis

Dicyclohexylcarbodiimide as a cleaving agent for colorimetric determination of pyridyl and pyrimidinyl compounds

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