mg/kg to ppm

i have to take 5mg for every kg of weight (130 lbs) pills are 100mcg each. what do i take?

[Mrs X]

Originally Posted by Unregistered

what do i take?

PLEASE take a trip to your doctor. The calucation leaves you taking 1000's of pills, so something is wrong with the dosage, or with your understanding of it.

Originally Posted by Unregistered

Convert lead concentrations in ash from mg/kg to ppm

0.1 mg/kg to how many ppm

[JohnS]

Originally Posted by Unregistered

0.1 mg/kg to how many ppm

Provided you want ppm on a weight over weight basis, 0.1 ppm.
This is because 1 kg = 1 million mg.

Convert 5mg/10ml to ppm

convert 0.073 ppm of iron from 0.5g ashed solid sample and diluted in to 50ml solution
in to mg/kg.

Thanks

[Mrs X]

Originally Posted by dawd

convert 0.073 ppm of iron from 0.5g ashed solid sample and diluted in to 50ml solution
in to mg/kg.

Thanks

Hi David, maybe you are looking at the problem backwards.

I gather your results from the solution are 0.073ppm (assume mg/L) Fe.

You only have 50mL, so you have to work out the proportion of Iron in that volume: 50/1000 x 0.073mg = 0.00365mg.

The amount of iron in your sample is 0.00365mg. Now you need to work out how much there is in 1kg: 1000/0.5 x 0.00365 = 7.3mg/kg

Hi
can u convert 30ppm to mg/kg?

If given .1 mg/kg of water content in fuel, and I need to convert that to PPM, how would I go about doing that?

[JohnS]

Originally Posted by Unregistered

If given .1 mg/kg of water content in fuel, and I need to convert that to PPM, how would I go about doing that?

see posts 23 and 24 in this thread