Standardization of Exposure

Quality Control and Standardization of Rabeprazole Tablets

Rabeprazole sodium is a new stable pharmaceutical composition developed by us in tablet form, consisting of rabeprazole sodium as active ingredient, excipients, a separating layer and enteric coating. The manufacturing method involves pressing with preliminary wet granulation. In this work, a method was developed for the quantitative determination of rabeprazole sodium in tablets with simultane...

Standardization of Cesium - 137 Gamma - Ray Sources Terms of Exposure Units ( Roentgens ) . In

'3'CS y~ray sources, whic h have been proposed by the Pub lic Health Service as a subs titute for radium in th e treatme nt of ma lignant diseases, require suitab le calibration if cons is tency is to be achie ved in radiation treatme nt. Several '"'Cs so urces we re ca libra ted using a graphite cavi ty ionizat ion chambe r in an open·ai r geometry. The co ntribution of scatter from the room s...

Treasure of the Past IX: Exposure Standardization of Iodine-125 Seeds Used for Brachytherapy

A method for calibrating iodine-125 seeds in terms of exposure has been established. The standard free-air ionization chamber, used for measuring soft x rays, was chosen for the measurements. Arrays of four to six seeds were used to enhance the ionization-current-to-background-current ratio. Seeds from an array were measured individually in a re-entrant chamber. The quotient of the exposure rat...

Standardization of ELISA for Detection of Avian Influenza Virus Antibodies

Standardization of carotid ultrasound.

Standardization of Carotid Ultrasound To the Editor: The article by Ranke et al1 in the February issue of Stroke represents an excellent advancement in Doppler grading of carotid artery stenosis. Since many surgeons now depend on Doppler ultrasound for decisions for carotid endarterectomy because of the costs and dangers of angiography and the cost and resolution problems of magnetic resonance ...