10040.00 mg/l sodium level to ppt salinity

[coralbeauties]

I just got back my triton icp test results and my sodium is shown to be 1.004 mg/l. Can anyone tell me what that is in ppt?
thanks
Jeff

 

[Randy Holmes-Farley Verified Community Expert]

I wouldn't try to get salinity from sodium alone. Is that what you mean?

 

[coralbeauties]

Yes
From the icp test that was the only thing related to the salinity. I saved a sample of water in a sealed container and was hoping to compare the icp results to my refracto. I’ve had three different calibration fluids test at three different readings. Even different readings from two different bottles from the same company
Jeff

 

[KStatefan]

Not sure how you are going to compare to your refractometer. Sea water is made up on much more then sodium. But the 10040.00 mg/l converts to 10.04 g/l or parts per thousand.

 

[Randy Holmes-Farley Verified Community Expert]

What do you mean its the only thing relayed to salinity? Magnesium, calcium, sulfate all would be good to know, even if you do not have chloride.

That said, 35 ppt seawater has 10,800 ppm sodium, so if you solution matches NSW in composition, that 10,040 ppm (my guess that you left off a zero) is equivalent to 32.5 ppt.