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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
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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.
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PPM (parts per million) and PPB (parts per billion) are both used as units of concentration to measure the amount of a substance in a mixture. The main difference between the two is the scale of measurement – PPM indicates one part of a substance per one million parts of a solution, whereas PPB indicates one part of a substance per one billion parts of a solution. This means that PPB is a thousand times smaller than PPM.

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Q: What are the differences between ppm and ppb?
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How can you prepare 1ppb from1000ppm sodium standard?

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.


What is ppm by volume?

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What is ppm-ppb-ppt used to express?

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What is the difference between mcg and ppm?

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