Many years ago I made up this handy sample concentration conversion table. Be sure and take into account the density of the compounds first. I find that it is still useful when reporting results to clients.
Parts per million (ppm)
|
Percent (%)
|
| 1 |
0.0001
|
10
|
0.001
|
100
|
0.01
|
1,000
|
0.1
|
10,000
|
1.0
|
100,000
|
10.0
|
1,000,000
|
100.0
|
ppm = ug/ml
1,000 ug/ml
|
=
|
0.1 %
|
=
|
1,000 ppm
|
100 ug/ml
|
=
|
0.01 %
|
=
|
100 ppm
|
10 ug/ml
|
=
|
0.001 %
|
=
|
10 ppm
|
1 ug/ml
|
=
|
0.0001 %
|
=
|
1 ppm
|
100 ng/ml
|
=
|
0.00001 %
|
=
|
100 ppb
|
10 ng/ml
|
=
|
0.000001 %
|
=
|
10 ppb
|
1 ng/ml
|
=
|
0.0000001 %
|
=
|
1 ppb
|
HOW TO CONVERT 5 ug/ml to mg/kg
ReplyDeleteWhen converting from mass/volume to mass/mass you must first know the density [mass per unit volume] of the material at a specified temperature. This is required to determine the mass of a given volume of solution. "Density" is calculated by dividing the mass of the liquid by the volume of liquid.
DeleteOnce you know the density, then you can proceed with the conversion (basic math).