a chemiluminescence (cl) method has been developed for the determination of hydroxyzine (hyd) and its metabolite cetirizine (cet). the method is based on sensitizing effect of cet and hyd on the weak cl reaction between ru(phen)32+ and acidic ce(iv). a mechanism for the cl reaction has been proposed on the basis of uv-vis, fluorescent and cl spectra. by using the recommended procedure, the cali...

widespread use of pharmaceuticals has resulted in mixture concentrations ranging from mg/l in effluent to µg/l concentrations in surface water. in a 2008 study, 13 pharmaceuticals, ranging in amounts from 0.0028 to 0.1757 µg/l, were identified in the tennessee river, usa and its tributaries. in order to address the need for risk assessment of environmentally relevant pharmaceutical mixtures, da...

What do you do to start reading miles to go before i sleep? Searching the book that you love to read first or find an interesting book that will make you want to read? Everybody has difference with their reason of reading a book. Actuary, reading habit must be from earlier. Many people may be love to read, but not a book. It's not fault. Someone will be bored to open the thick book with small w...

the present study was designed to develop a simple, validated liquid chromatographic method for the analysis of azithromycin in bulk and pharmaceutical dosage forms using ultraviolet detector. the best stationary phase was determined as c18 column, 5 µm, 250 mm × 4.6 mm. mobile phase was optimized to obtain a fast and selective separation of the drug. flow rate was 1.5 ml/min, wavelength was se...

this article discusses the influence of policies on the development of biopharmaceuticals. we choose the experiences of taiwan for our empirical study and focus on the evolution between 2000 and 2008; in the period of time the country provides an interesting example for further exploration of biopharmaceutical policies. among all the policies, the two national programs (national research progra...

Introduction Conclusions References

two sensitive spectrophotometric methods are presented for the assay of pantoprazole sodium sesqui hydrate (pnt) in bulk drug and in formulations using n-bromosuccinimide (nbs) and two dyes, methyl orange and indigo carmine, as reagents. the methods involve the addition of a known excess of nbs to pnt  in acid medium, followed by determination of unreacted oxidant by reacting with a fixed amoun...