Solution home ENVIRONMENTAL Analysis and Testing

Difference between Nitrates and Nitrites reported as N under “Nutrients” and NO3/NO2 under “Calculated parameters”:

Modified on: Mon, 4 Apr, 2022 at 9:34 AM

The difference comes from the fact that dissolved nitrate is expressed in mg/L (as N), and the calculated value is converting the results to mg/L (NO3).



Take the data below as an example:


When a result of nitrate (as N) of 2.2 mg/L (as N) are converted to NO3, the molecular weight will be used:


Dissolved NO3 (as N) * [molecular weight NO3 / molecular weight N] = Dissolved NO3 (as NO3)


2.2 mg/L * [62.0049/14.0067] = 9.74 mg/L


Did you find it helpful? Yes No

Send feedback
Sorry we couldn't be helpful. Help us improve this article with your feedback.

ENVIRONMENTAL

ENVIRONMENTAL CUSTOMER PORTAL INDUSTRIAL HYGIENE COMPRESSED BREATHING GAS ENVIRONMENTAL DNA (eDNA) FOOD INTERNAL ONLY - ENVIRONMENTAL
ENVIRONMENTAL CUSTOMER PORTAL INDUSTRIAL HYGIENE COMPRESSED BREATHING GAS ENVIRONMENTAL DNA (eDNA) FOOD INTERNAL ONLY - ENVIRONMENTAL
Solution home ENVIRONMENTAL Analysis and Testing

Difference between Nitrates and Nitrites reported as N under “Nutrients” and NO3/NO2 under “Calculated parameters”:

Modified on: Mon, 4 Apr, 2022 at 9:34 AM

The difference comes from the fact that dissolved nitrate is expressed in mg/L (as N), and the calculated value is converting the results to mg/L (NO3).



Take the data below as an example:


When a result of nitrate (as N) of 2.2 mg/L (as N) are converted to NO3, the molecular weight will be used:


Dissolved NO3 (as N) * [molecular weight NO3 / molecular weight N] = Dissolved NO3 (as NO3)


2.2 mg/L * [62.0049/14.0067] = 9.74 mg/L


Did you find it helpful? Yes No

Send feedback
Sorry we couldn't be helpful. Help us improve this article with your feedback.