Packaging and storage—
Preserve in single-dose or multiple-dose containers at a temperature specified in the labeling.
Bacterial endotoxins á85ñ—
The limit of endotoxin content is not more than 175/
VUSP Endotoxin Unit per mLof the Injection,when compared with the USP Endotoxin RS,in which
Vis the maximum recommended total dose,in mL,at the expiration date or time.
Radiochemical purity—
Not more than 10.0%of unbound Tc 99m (free pertechnetate),hydrolyzed Tc 99m,and technetium-tin colloid is present,determined as follows.
System A—
Under an atmosphere of nitrogen,place a measured volume of Injection,such that it provides a count rate of about 20,000counts per minute,about 25mm from one end of a paper chromatographic strip (see
Chromatography á621ñ).Immediately develop the chromatogram over a suitable period by ascending chromatography,using sodium chloride solution (0.9in 100),and dry it under nitrogen.Determine the radioactivity distribution by scanning the chromatogram with a suitable collimated radiation detector.Hydrolyzed Tc 99m and technetium-tin colloid are located at the origin (
RF0to 0.1).
System B—
Proceed as directed for System A,except to develop the chromatogram in dilute methanol (85in 100).Free pertechnetate is located at an RFof 0.6to 0.8.The sum of the percentage of radioactivity at the origin in System Aplus the percentage of radioactivity at an RFof 0.6to 0.8in System Bis not greater than 10.0%.
Other requirements—
It meets the requirements of the tests for
Radionuclide identificationand
Radionuclidic purityunder
Sodium Pertechnetate Tc 99m Injection,and meets the requirements for
Labeling,
Biological distribution,and
Assay for radioactivityunder
Technetium Tc 99m Pyrophosphate Injection.It meets also the requirements under
Injections á1ñ,except that it may be distributed or dispensed prior to completion of the test for
Sterility,the latter test being started on the day of manufacture,and except that it is not subject to the recommendation on
Volume in Container.