Chromatographic behaviour of organic acids on dowex i-X10

Davies, C.; Hartley, Roy D.; Lawson, G.J.

doi:10.1016/s0021-9673(01)80318-6

Cited by 34 publications

(5 citation statements)

References 5 publications

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“…The DPA CV, recorded at pH 1.0 (Fig. 3), may be divided into three ranges, each showing several peaks : (a) from [0.400 to [1.500 V ; two reduction peaks (1,2) appeared at E B [1 V, with another peak (3) at E B [1.3 V ; (b) from [1.500 to ]0.200 V ; two oxidation peaks (2@, 4@) appeared at E B [0.2 V and another (1@) at E B 0.1 V ; (c) from ]0.200 to [0.400 V ; one reduction peak (4) appeared at E B [0.2 V.…”

Section: Methodsmentioning

confidence: 99%

Electrochemical characterization of pyridine-2,6-dicarboxylic acid

Ferraro¹,

Passamonti²,

Bartocci³

et al. 1997

Faraday Trans.

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Section: Methodsmentioning

confidence: 99%

Electrochemical characterization of pyridine-2,6-dicarboxylic acid

Ferraro¹,

Passamonti²,

Bartocci³

et al. 1997

Faraday Trans.

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“…They were resolved by chromatography on a column of Dowex 1 anion-exchange resin using aciueous formic acid as eluent (17). The first with its chromatographic behavior, showed that it was penicillamine sulfinic acid, (valine-psulfinic acid), (PenS0,H).…”

Section: Idetztijcation Of Productsmentioning

confidence: 99%

γ-Radiolysis of disulfides in aqueous solution. II. D-Penicillamine disulfide

Purdie¹

1969

Can. J. Chem.

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The γ-radiolysis of D-penicillamine disulfide (PenSSPen) in 3 × 10−4 M aqueous solution has been studied under aerated and deaerated conditions. G values were determined for the following products: penicillamine sulfinic acid (PenSO2H), penicillaminic acid (PenSO3H), β-hydroxyvaline (PenOH), 2-amino-3-methylbut-3-enoic acid (HOOC•CH(NH2)•C(CH3)=CH2), penicillamine (PenSH), penicillamine disulfide-S-monoxide (PenS(O)SPen), valine (PenH), penicillamine trisulfide (PenSSSPen), and ammonia. The low yield of PenSO3H in aerated solution indicated that PenSOH did not react with oxygen or O2−. The trisulfide, which was obtained in high yield, was found to come mainly from the reactions:[Formula: see text]Experiments with •OH radicals produced chemically (TiCl3/H2O2) and irradiations with cysteine or penicillamine present were used to confirm these reactions. These and the other reactions were tested with radical scavengers; formate and monochloroacetate ions and nitrous oxide.

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“…2,6-Dicarboxypyridine is present in nature as an oxidative degradation product of vitamins, coenzymes and alkaloids, and it is also a component of fulvic acids [1,2]. 2,6-Dicarboxypyridine is a necessary raw material for synthesizing 2,6-diacetylpyridine, which has widely been used in organic synthesize as an important intermediate compound [3].…”

Section: Introductionmentioning

confidence: 99%