A qualitative spot-test and tandem quantitative analysis of dipyrone in the bulk drug and in
pharmaceutical preparations is proposed. The formation of a reddish-violet color indicates a …

Cimetidine has been determined in the presence of its acid-induced degradation products
using a second derivative (D 2-) spectrophotometric method (method I) or a calorimetric …

Fig. 1. BOD-time curves; 1: Sodium oleate 30 ppm; 2: Acetic acid 59ppm; 3." Linear sodium
dodecylbenzenesulphonate 27 ppm; 4: Vat green 1 33 ppm; 5: Sodium …

As already mentioned, an earlier version of this test was first described by Feigl7 for the
detection of pyramidone. It is based on a very selective oxidation of that compound in the …

Memoquin, a recently discovered new drug candidate for the treatment of Alzheimer's
disease (AD), is a compound able to interfere with different key targets of AD …

Two methods are described for quantitative determination of nizatidine. The first is a
cathodic stripping voltammetric method which is based on the accumulation of the …

Two simple, sensitive and specific fluorimetric methods have been developed for the
determination of Penicillamine (PNC), a sulphur containing compound. Method (I) involves …

Cytisine is a plant alkaloid that is a partial agonist for the α4β2-nAChRs and is used as an
aid to smoking cessation. To date, there are no published data on cytisine concentrations in …

The solution and crystal structure of the alkaloid cytisine has been studied using nmr
techniques and X-ray crystallography respectively. 1H and 13C relaxation parameters and …