Just multiply by 1000.
There are 106 pmol in a umol and 103 ul in a ml pmol/ul = (pmol/umol) * (umol/ml) * (ml/ul) = 106 * (umol/ml) * 10-3 = 103 * (umol/ml) That is, multiply the value by 103 = 1000.
To convert milligrams (mg) to micrograms (ug), you need to multiply by 1000 because there are 1000 micrograms in a milligram. To convert milliliters (mL) to microliters (uL), you also multiply by 1000 because there are 1000 microliters in a milliliter. So, to convert 40 mg/mL to ug/uL, you would multiply by 1000 x 1000 = 1,000,000. This means 40 mg/mL is equal to 40,000 ug/uL.
There are 1000 microlitres in a millilitre. To convert here, you multiply by 1000. 0.0036 ml x 1000 is 3.6 microlitres.
0.93log10 copies per ul (microliter) corresponds to 8.5 copies per ul or 8500 copies per ml. The number is based on powers of 10. This is because 100.93=8.5. So 1 log 10 is 10 copies, 2 log10 is 100 copies, 3log10 is 1000 copies and 6 log10 is 1,000,000 copies. It is reported this way because any treatment needs to show a drop in viral load by a factor of 100s or even 1000s to be effective.
0.001 milliliter per microliter.
Divide by 1000. So 200 microlitres = 0.2 millilitres
You need to add the 50ul stock solution to 1200ul of distilled water to produce 1250ul of solution with a concentration of 2ul per ml.
That'll be 5,250mL (as one milliliter is one-thousandth of a liter).
1milliliter = 0.001 microliter
Milliliters x 1,000 = microliters (µl)250 x 1,000 = 250,000µl
The conversion is 1000 ul/ mL
First, 100ug per ul is 100,000ug per ml. You want 100 micrograms per ml. Therefore you need to dilute 1 in 1000. If 250ul is your total volume, you need to take 0.25 microlitres of the stock.