Can I do nitrate analysis on salt water samples using NECi NTK systems?
2.8 A: Yes, however, the standard curve used for quantifying the results must be made using standards that also contain salt water. This can be accomplished by obtaining nitrate-free salt water like Instant Ocean which is available from us or from many other suppliers. You could also prepare a sodium chloride solution with a concentration about equal to that in salt water (0.2 M NaCl) and use it to prepare the standards.
