Ammonia and Total Kjeldahl Nitrogen

ePAPER READ

DOWNLOAD ePAPER

shl.uiowa.edu

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

START NOW

Automated Phenate• Continuous Flow Injection vs Segmented FlowInjection• Flow Injection is simpler to use• Segmented flow – low dispersion, longer mixingtimes, RSD’s and Sensitivity better.• Discrete Analyzers

Environmental Sampling Kit Reference Guide - State Hygienic ...

State Hygienic Laboratory at the University of Iowa

The Next Era - State Hygienic Laboratory - University of Iowa

Total Nitrogen-Tips for TKN Digestion and Alternate Methods for TN

Meet our interns - State Hygienic Laboratory - The University of Iowa

Interferences• Many interferences: Calcium, Magnesium, H2S,Turbidity – needs preliminary distillation.• Alkaline citrate solution will complex cations andkeep them from ppt as hydroxides• Preliminary distillation will help reduce turbidity• Sulfide can be eliminated by acidification andvigorous aeration to remove as H2S.

Page 1 and 2: Ammonia and Total KjeldahlNitrogenD
Page 3 and 4: Ammonia Methods• Titration• Ion
Page 5 and 6: Ammonia-Selective ElectrodePros•
Page 7 and 8: Distillation• Manual distillation
Page 9: Phenate Methods• Phenols react wi
Page 13: Questions?• Contact information:

Ammonia and Total Kjeldahl Nitrogen

Create successful ePaper yourself

Delete template?

Save as template?