Radioactive Decay Calculator for determining radiochemical concentration, specific activity and molarity on a specific date.

Required input:
• Isotope
• Current Concentration and Specific Activity
• Calibration date
• Use Date

Users can input the current specifications of a radiochemical to calculate what the concentration, specific activity and molarity of that compound will be on any given date based on the half life of the isotope. Values can be determined for future use or to back date their calculations.

Ratings and Reviews

3.2 out of 5
11 Ratings

11 Ratings

dreadpirateC ,

Beautiful App

One of the most beautiful science calculators on the store. Also makes a very nice short report that can be emailed and added to a lab notebook or technicians work list.

tjw2bc ,

Disappointed how do I get my money back. Totally useless

If I am looking at it correctly there seems to be a very l limited list of isotopes to choose from. Surprise. Common isotopes are not available.

 Meg ,

Would be great....

No 99m-tc. One of the MAIN isotopes used in nuclear medicine.

App Privacy

The developer, PerkinElmer Informatics, Inc, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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