ppb: parts-per-billion
ppm: parts-per-million
ppb and ppm are the ways of quantifying small concentrations, usually mass.
In one Liter, there are 1000 milliliters. Ppm stands for parts per million. Ppm tells you the concentration of some liquid or gas in a solution. If there are 100 parts out of a million of CO2 (100 ppm), that is equal to 100/1,000,000, which means that .01% of the molecules in the mixture are CO2. mL and ppm are two different units of measurement. One represents distance and the other represents concentrations of fluids.
No, milliliter per liter (mL/L) is a ratio of volume to volume, typically used for expressing concentrations of liquids. Parts per million (ppm) is a ratio of mass to mass and is used for very dilute concentrations in general. They are different units of measurement.
Parts per thousand (ppt) is a unit of measurement used to express a very small amount of a substance in a larger sample. Parts per million (ppm) is another unit of measurement that is even smaller than ppt, used to express an even smaller quantity of a substance in a larger sample. Essentially, ppm is 1000 times smaller than ppt.
Light Amplified by Simplified Emission of Radiation
Parts per million by weight. It is a unit of measurement used to express the concentration of a substance in a mixture, relative to the weight of the entire mixture.
To convert parts per billion (ppb) to parts per million (ppm), you divide by 1000. So, 28 ppb is equal to 0.028 ppm.
95.32% carbon dioxide2.7% nitrogen1.6% argon0.13% oxygen0.08% carbon monoxide210 ppm water vapor100 ppm nitric oxide2.5 ppm Neon850 ppb HDO300 ppb Krypton130 ppb formaldehyde80 ppb xenon30 ppb ozone10 ppb methaneNote: ppm stands for parts per million while ppb stands for parts per billion. 210 ppm of water vapour means water vapour makes up 210/1,000,000 of the atmosphere.
ppb is not a weight, but a ratio. "parts per billion"
1000 ppm = 1 ppb I think equation to convert ppm to ppb is: 1 ppm = 1000 ppb, or 1 ppb = 1/1000 ppm * * * * * Wrong way around, I am afraid. 1000 parts per billion is 1 ppm. To convert ppb to ppm divide by 1000.
1ppm is greater than 1ppb. Reason: ppm is mg/l and ppb is ug/l. And mg is always greater than ug. 1ng = 1000ug 1ug = 1000mg 1mg= 1000kg.... Hope this information helps. Regards, Nazia Farooqui Heriot Watt University, Scotland.
PPM-Parts Per Million: Number of grams of solute per 1 million grams of solution. ppm=[mass of solute/mass of solution]*10 to the 6th power&PPB-Parts Per Billion: Number of grams of solute per 1 billion grams of solution.ppb=[mass of solute/mass of solution]*10 to the 9th power.Hope this helps.
58 ppb = .058 ppm
Crustal rocks: 2-3 ppm Sea water: cca. 3,3 ppb
These are units that indicate a very small amount of the substance being measured. Generally air or water contaminates are measured in ppm or ppb. ppm = parts per million ppb = parts per billion Concentration of carbon monoxide in underground carparks could be measured in ppm. Amount of contaminate in air could be ppm or ppb. Amount of cyanide gas? Amount of nutrient in soil or water? Amount of ozone in water purifying treatment facilities...
Uranium is not so rare: Earth crust: 2,7 ppm Sea water: 3,2 ppb Sun and the solar system: 18 ppb More than 200 minerals with uranium are known.
To prepare a 1 ppb sodium solution from a 1000 ppm sodium standard, you can dilute 1 mL of the 1000 ppm sodium standard with 999 mL (or 999 g) of solvent. This will result in a final solution with a concentration of 1 ppb, as 1 mL is equivalent to 1 mg in this case.
abundance of uranium in the earth crust; 2,5-3 ppm (mg/kg) abundance of uranium in the sea water: ca. 3 ppb (?g/kg)