A novel and highly sensitive method for the determination of some heavy metals in skin whitening cosmetics creams using multiwalled carbon nanotubes MWCNTs as solid phase extraction sorbent for the preconcentration of these heavy metals prior to their determination by inductively coupled plasma atomic emission spectrometry is described. Different practical parameters have been thoroughly invest...

Two simple, sensitive spectroscopic and atomic absorption spectrometric (AAS) methods have been suggested for the determination of doxazosinmesylate in pure form and tablet formulations. The methods are based on the formation of ion-pair associate between the drug and the inorganic complex, bismuth(III) tetraiodide. The reaction occurs in nitric acid medium forming orange-reda ion-pair associat...

Fifty nine patients with Helicobacter pylori positive duodenal ulcers that failed to heal after a six week course of treatment with H2 blockers were randomly assigned to one of the following three regimens: (i) bismuth subsalicylate, 600 mg three times daily (n = 19), (ii) ranitidine, 300 mg at night (n = 20), (iii) bismuth subsalicylate plus ranitidine (n = 20). Cumulative ulcer healing rates ...

Clostridium perfringens-associated necrotic enteritis causes significant economic losses. The objective of this study was to evaluate the effect of bismuth citrate, lactose, and organic acid on the development of necrotic enteritis in broilers. The first study was a dose response that evaluated bismuth citrate at 50, 100, or 200 ppm on bacterial intestinal colonization and lesion development as...

Fifty nine patients with Helicobacter pylon positive duodenal ulcers that failed to heal after a six week course of treatment with H2 blockers were randomly assigned to one of the following three regimens: (i) bismuth subsalicylate, 600 mg three times daily (n=19), (ii) ranitidine, 300 mg at night (n=20), (iii) bismuth subsalicylate plus ranitidine (n=20). Cumulative ulcer healing rates after f...