Elisabeth Bardez,*,† Valérie Alain,† EÄ milie Destandau,† Aleksandre Fedorov,‡ and José M. G. Martinho‡ Laboratoire de Chimie Générale, ConserVatoire National des Arts et Métiers, 292 rue Saint-Martin, 75003 Paris, and Laboratoire de Photophysique et Photochimie Supramoléculaires et Macromoléculaires (CNRS UMR 8531), Ecole Normale Supérieure de Cachan, 61 AVenue du Président Wilson, 94235 Cacha...

Concomitant contact allergy to formaldehyde and formaldehyde-releasers remains common among patients with allergic contact dermatitis. Concentration of free formaldehyde in cosmetic products within allowed limits have been shown to induce dermatitis from short-term use on normal skin. The aim of this study was to investigate the formaldehyde content of cosmetic products made in Lithuania. 42 sa...

The study was carried out to develop procedure for determining concentration of formaldehyde to be used for crosslinking of gelatin in the presence of drugs having amino groups. Gentamicin sulfate was used as a drug candidate due to its high content of amino acids. Gelatin crosslinking is accelerated by aldehyde-containing compounds and inhibited by amino group-containing compounds. The major m...

Human plasma converting enzyme activity was investigated by comparing biological with immunological activity of added or generated angiotensin after plasma incubation. Sodium citrate (2 X 10" 2 M), 2:2'-dipyridyl (1 X lO 4 and 1 X 10~M), chromotropic acid (3 X 10" and 3 X K H M ) and desferrioxamine (10 and 100 mg/100 ml) did not interfere with converting enzyme. By contrast, EDTA (3 X H H M an...

Recently we described a method for the determination of alanine based upon its conversion into acetaldehyde by the action of ninhydrin (1). A method for the measurement of glycine has been devised which involves its conversion by ninhydrin to formaldehyde; the latter is then measured by its reaction with chromotropic acid. Earlier methods for the measurement of glycine are less sensitive and sp...