Physics A-Level
Chemical form and labelling
What Chemical form and labelling means in Physics A-Level, as defined for AQA.
Definition of Chemical form and labelling
Check what you remember
Read the wording for your board, then hide it and explain Chemical form and labelling in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Technetium-99m is eluted as sodium pertechnetate with saline and can be labelled to many pharmaceuticals.
Topics that use Chemical form and labelling
- Imaging techniques (A-level only) (AQA A-Level)
Related terms
- Balance of half-life against patient dose
- Chemical labelling and organ specificity
- Gamma photon energy and detector efficiency
- Penetrating power and external detection
- Repeated elution and regrowth
- On-site supply of short-lived tracers
Using Chemical form and labelling in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Physics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge