You can't compare the two directly. A "mL" is a milliliter, and is a measure of volume (it is one thousandth of a liter). A "ppm" is a part-per-million, and is a concentration. A ppm is used in exactly the same way as a percent (%) is used. A percent is really part-per-hundred. A ppm is a much lower concentration, but is used in the same way.
Without knowing more information about the problem, there is NO WAY to go from milliliters to ppm. You must have more information to go from volume to concentration.
if it is water 1000 ppm = 1 mg/ml
100 µl Benzone Triazole in 100 ml Methanol equals 1 ppm
The two terms ppm and ml are not similar measures. PPM (parts per million) is a ratio and can apply to mass, volume, etc., while ml (milliliter) is a unit of volume - 1/1000 of a liter.
Make a 1 to 100 dilution of the original 1000 ppm solution. That is take 1 ml and dilute to 100 ml, or take 10 ml and dilute to 1000 ml. This will give you a 10 ppm solution.
1008.9
Assuming "ppm" is "ppmv" (1000 * 29 *.158 / 1000000 [1/ppm]) * 1000 [ml/l] = 4.58 ml ... if it is "ppmw", then it would be about 2.8 ml.
4ml/1000 = approx 4000 ppm, depending on the final volume after adding 4ml to 1000 ml water
Assuming you really mean 1 g/ml (which is very high), then ... convert 1 gm/ml to mg/liter to get ppm1 g = 1000 mg 1 ml = 0.001 L 1000 mg/0.001 L = 1,000,000 mg/L = 1,000,000 ppm
1000 ppm = 1000 mg/ l 1N NaCl = 58.5 gm/l ok 1000 mg/l = 1 gm/l = 0.1gm/100 ml = 0.1 % wt. on the other hand 1 % wt. = 10,000 ppm so , 0.1 %wt. = 1000 ppm so you need to put 0.1 gm in 100 ml = 1 gm in 1000 ml to get 1000 ppm
1 ppm is 1 mg per litre so you need to weigh out the amount of zinc sulfate that contains 10mg i.e 0.01g SO4 which is 287.4/32 =8.98125g ZnSO4-7H2O and add to a 1 lt volumetric flask and dilute with water to 1 litre.
You prepare a primary solution then dilute portion of your solution down to the required concentration. For example, you want a 10 ppm salt solution (10 mg/L), you dilute 1 g of salt in 1 L of water you get 1000 ppm salt solution. You take 10 ml of your salt solution (0.01 g salt in 10 g) and add in additional 980 ml of water then you get a 10 ppm weight solution.
No. 1 ppb = 1 ug/L or 1 microgram per liter. You can find conversion charts on the web (http://waterontheweb.org/resources/conversiontables.html) Yes, ng/mL is equivalent to parts per billion. While it is true that 1 ppb = 1 ug/L, it is equally true that 1 ng/mL = 1 ppb. They are the same sice 1 ng is 1/1000 of a ug and 1 mL is 1/1000 of a L. All that has changed is the units, but they remain equivalent.