Question

Can you please tell me the difference between µg P L−1 and µg/L
Thanks

Answer 1

$\mu \mathrm{g} / \mathrm{L}$ is micrograms per liter of any compound, it's a measure of the concentration in general (1 microgram per liter = 1.0 × 10 $^{-6}$ gram per liter, 1 μg/l = 1.0 × 10 $^{-6}$ g/l)

$\mu \mathrm{g} \, \mathrm{P} \, \mathrm{L}^{-1}$ is total phosphorus concentration in $\mu \mathrm{g} / \mathrm{L}$ .

That's all the difference.