Ammonium, NH₄⁺

1. Monovalent and Divalent Cation Standards (1)
2. Monovalent and Divalent Cation Standards (2)
3. Simultaneous Analysis of Monovalent and Divalent Cations
4. Tap Water (1) (YK-421)
5. High Sensitive Detection of Cations
6. Red Wine (1) (YK-421)
7. Alkali Metal Ions
8. Alkylamines (1) (Y-521)
9. Ethanolamines and Alkylamines (Phosphoric Acid + Acetonitorile)
10. Monovalent and Divalent Cation Standards (3) (Dipicolinic Acid + Crown Ether Eluent)
11. Serum
12. Effect of Acetonitorile Concentration on Elution Volume
13. Tap Water and Rain Water
14. Monovalent and Divalent Cation Standards (4) (Phosphoric Acid Eluent)
15. Monovalent and Divalent Cation Standards (5) (Phosphoric Acid + 18-Crown 6-Ether Eluent)
16. Alkylamines (2) (YK-421) (Phosphoric Acid + Acetonitorile)
17. Monovalent and Divalent Cation Standards (6) (Comparison of YS-50 and YK-421)
18. Linearity of Calibration Curves (YS-50)
19. Separation of Na⁺ and NH₄⁺ (1) (Non-suppressor Method)
20. Effect of Methanesulfonic Acid Concentration on Elution Time (YS-50)
21. Effect of Flow Rate on Plate Number (YS-50)
22. Effect of Temperature (YS-50)
23. Monovalent and Divalent Cation Standards (7) (Eluent Conteinig Acetonitrile)
24. Eluent to be Used for YS-50
25. Separation of Na⁺ and NH₄⁺ (2) (Suppressor Method)
26. Cations and Alkylamines (YS-50)
27. Sea Water (2) (YS-50)
28. Red Wine (3) (YS-50)
29. Mineral Water (YS-50)
30. Cation Analysis in the Presence of PEG (YS-50)
31. Cation Analysis in the Presence of Albumin (YS-50)
32. Monovalent and Divalent Cation Standards (8) (Ethylenediamine Containing Sample)
33. Monovalent and Divalent Cations Analysis in River Water (Ethylenediamine Containing Sample)
34. Monovalent and Divalent Cations Analysis in Tap Water (Ethylenediamine Containing Sample)
35. Effect of Crown Ethers (YS-50)