* Molecular weight

Chemical concentration =		mmol/ml		mM		mg/ml
		µmol/ml		µM		µg/ml
		nmol/ml		nM		ng/ml

Step 2: Calculation of unlabeled material present and ratio of hot to cold

Instructions for use(continued):
7. Enter the theoretical maximum activity, or select appropriate isotope from the drop-down list
8. Click 'Calculate'
9. Click 'Reset' before entering any new values

** = Compulsory field if proceeding through step 2

Actual specific activity

Ci/mmol

** Theoretical maximum specific activity

---- 3H 14C 32P 33P 35S 125I

Ci/mmol

Molarity

mM

Concentration of unlabeled material

mM

Amount of unlabeled material	Amount of labelled material	Ratio Hot	:Cold
mg/ml	mg/ml
µg/ml	µg/ml
ng/ml	ng/ml