i have a result of iron 2.3 ppm and i have take the 0.2 g sample
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how to convert ppm to mg/kg if the sample taken is in grams
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Re: how to convert ppm to mg/kg if the sample taken is in grams
Originally posted by arfeen66i have a result of iron 2.3 ppm and i have take the 0.2 g sample
Is this what you wanted to know?
Or do you want to know how much original material you need in order to get 0.2 grams of your compund of interest?

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Re: how to convert ppm to mg/kg if the sample taken is in grams
Wrong. It depends on the density of each substance.
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Re: how to convert ppm to mg/kg if the sample taken is in grams
Originally posted by MikeWrong. It depends on the density of each substance.
Ppm is an ambiguous term because it can be calculated on a mass, volume, or molefraction ratio.
Assuming mass/mass is meant, the above interpretation is correct.
Actually ppm on v/v basis is not too common, It is usually mass/mass for solids and mole/mole for gases. Liquids may be mass over mass, or mass over a volume of one liter assumed to be a kilogram.
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Re: how to convert ppm to mg/kg if the sample taken is in grams
Hallo every one
1 ppm =1 mg/kg and this equation for the solid materials .
for example
100 ppm lactic acid it means 100 mg /kg or 100 gram/1000 kg
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Re: how to convert 1.61 g/kg to porcent (%) if the sample is soil
I sended a soil sample to chemical soil laboratory. The analisys answer for TOTAL NITROGEN IS : 1.61 g/kg. I need to convert this value ( 1.61 ) to porcent (%). How i can do this ? Easier, let me know the answer directly. Please.
THANKS.
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Re: how to convert ppm to mg /g
I have taken 2g of sample for ashing and made it to 50 ml, from that again i have taken 0.250 ml to make 100ml. now i got 0.0283ppm how can i convert to mg / g.
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Re: how to convert ppm to mg /g
Originally posted by sharan.t1985@gmail.com View PostI have taken 2g of sample for ashing and made it to 50 ml, from that again i have taken 0.250 ml to make 100ml. now i got 0.0283ppm how can i convert to mg / g.
Because of the intermediate dilution only part of your initial 2 g sample contributed to the 100 mL of solution, specifically 2 g x 0.25 mL/50 mL, or 10 mg. Therefore the concentration in your sample was 2.83 µg/10 mg, or 0.283 mg/g.
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Re: how to convert ppm to mg/kg if the sample taken is in grams
i take 5 gm of sludge than make it 100 ml as final volume...and from this 0.5 ml of sample..now my answer is 220 mg/l..how can i convert into gm/kg
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Re: how to convert ppm to mg/kg if the sample taken is in grams
Originally posted by Unregistered View Posti take 5 gm of sludge than make it 100 ml as final volume...and from this 0.5 ml of sample..now my answer is 220 mg/l..how can i convert into gm/kg
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Re: how to convert 1.61 g/kg to porcent (%) if the sample is soil
soil sample to chemical soil laboratory. The analisys answer for TOTAL NITROGEN IS : 1.61 g/kg. I need to convert this value ( 1.61 ) to porcent (%). How i can do this ? Easier, let me know the answer directly. Please.
THANKS.
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Re: how to convert 1.61 g/kg to porcent (%) if the sample is soil
Originally posted by Unregistered View Postsoil sample to chemical soil laboratory. The analisys answer for TOTAL NITROGEN IS : 1.61 g/kg. I need to convert this value ( 1.61 ) to porcent (%). How i can do this ? Easier, let me know the answer directly. Please.
THANKS.
1.61 g/kg is literally 1.61 parts per thousand parts. You wants parts per hundred parts (percent). It is 0.161 parts per hundred or 0.161%
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