1 part of solution A plus 99 parts solution B
Add 2 mL of culture to 20 mL of buffer. 2/20 = 1/10
what is dilution rate for glycos
1 mm = 1/1000 of a metre The milli- prefix means 1/1000 → 1 mm = 1/1000 m → 1 m = 1000 × 1/1000 m = 1000 mm → 1mm/1m = (1 mm)/(1000 mm) = 1/1000
1% of 1000 is 10
dilute it 1 in 5000. likely best done with a serial or step dilution
In chemistry and biology, the dilution factor is the total number of unit volumes in which the material is dissolved. As I understand it, the dilution refers to the dilution ratio. If you add 1 part of something to 4 parts of something else, the dilution ratio is 1 to 4. The dilution factor counts all the parts and expresses the same thing as 1 out of 5.
5ml of the 1000 ppm solution in 95ml distilled water gives a 500ppm solution
1 part of solution A plus 99 parts solution B
There are 1000ug in a milligram. Therefore 3/1000 is the dilution you need. Decide on the volume, divide by 1000, multiply by 3 and that is the volume of stock that you need.
You add 9.09ml of stock solution to a volumetric and make it up to 1 litre to get a 110 dilution
1:2 dilutions
Concentration factor, CF = 1/Dilution factor, DF if DF = 5 then CF = 1/5 CF = 0.2
1:2 means "1 part to 2 parts", so if the "1 part" is what you are diluting, it is actually a 1/3 dilution (one part into 3 parts total). On the other hand, 1/2 means "1 part into 2 parts total", and in the colon nomenclature that would be a 1:1 dilution.
1-1.5%
32
Add 2 mL of culture to 20 mL of buffer. 2/20 = 1/10