Unitary ionic probe

1. A unitary ionic probe, comprising:

a substantially elongate body including a central axis, a proximal end, and a distal end;

an active ion sensitive region of pH glass that is located on and bonded into an exterior of the elongate body in a region of the proximal end;

an active electrode in ionic communication with the active ion sensitive region;

a reference ion sensitive region of pH glass that is located on and bonded into the exterior of the elongate body and is spaced-apart from the active ion sensitive region; and

a reference electrode in ionic communication with the reference ion sensitive region.

2. The unitary ionic probe of claim 1 , wherein the active ion sensitive region extends substantially radially from the proximal end and wherein the reference ion sensitive region is located on a circumferential outer surface of the elongate body.

3. The unitary ionic probe of claim 2 , wherein the active ion sensitive region is substantially planar in shape.

4. The unitary ionic probe of claim 2 , wherein the active ion sensitive region is substantially domed in shape.

5. The unitary ionic probe of claim 1 , wherein the active ion sensitive region is located on a circumferential outer surface of the elongate body at the proximal end and wherein the reference ion sensitive region is located on the circumferential outer surface and spaced-apart from the active ion sensitive region.

6. The unitary ionic probe of claim 1 , with the active ion sensitive region comprising a first portion of ion-sensitive material bonded into the elongate body and with the reference ion sensitive region comprising a second portion of ion-sensitive material bonded into the elongate body.

7. The unitary ionic probe of claim 1 , with the ionic probe being substantially cylindrical and further comprising an inner wall forming a reference chamber located at the distal end, with the reference chamber holding the reference electrode and being in communication with the reference ion sensitive region.

8. The unitary ionic probe of claim 1 , with the ionic probe being substantially cylindrical and further comprising a substantially annular inner wall forming a substantially annular reference chamber located at the distal end, with the reference chamber holding the reference electrode and being in communication with the reference ion sensitive region.

9. The unitary ionic probe of claim 1 , with the ionic probe being substantially cylindrical and further comprising a substantially annular inner wall forming a substantially annular reference chamber located at the distal end, with the reference chamber holding the reference electrode and being in communication with the reference ion sensitive region, wherein the inner wall is substantially coaxial with the central axis.

10. The unitary ionic probe of claim 1 , further comprising one or more seals sealing the distal end of the elongate body, with the one or more seal allowing the active electrode and the reference electrode to exit the elongate body.

11. The unitary ionic probe of claim 1 , further comprising a single seal sealing the distal end of the elongate body, with the seal allowing the active electrode and the reference electrode to exit the elongate body.

12. A unitary ionic probe, comprising:

a substantially elongate body including a central axis, a proximal end, and a distal end;

an active ion sensitive region of pH glass that is located on and bonded into an exterior of the elongate body in a region of the proximal end, wherein the active ion sensitive region extends substantially radially from the proximal end;

an active electrode in ionic communication with the active ion sensitive region;

a reference ion sensitive region of pH glass that is located on and bonded into a circumferential outer surface and is spaced-apart from the active ion sensitive region; and

a reference electrode in ionic communication with the reference ion sensitive region.

13. The unitary ionic probe of claim 12 , wherein the active ion sensitive region is substantially planar in shape.

14. The unitary ionic probe of claim 12 , wherein the active ion sensitive region is substantially domed in shape.

15. The unitary ionic probe of claim 12 , with the active ion sensitive region comprising a first portion of ion-sensitive material bonded into the elongate body and with the reference ion sensitive region comprising a second portion of ion-sensitive material bonded into the elongate body.

16. The unitary ionic probe of claim 12 , with the ionic probe being substantially cylindrical and further comprising an inner wall forming a reference chamber located at the distal end, with the reference chamber holding the reference electrode and being in communication with the reference ion sensitive region.

17. The unitary ionic probe of claim 12 , with the ionic probe being substantially cylindrical and further comprising a substantially annular inner wall forming a substantially annular reference chamber located at the distal end, with the reference chamber holding the reference electrode and being in communication with the reference ion sensitive region.

18. The unitary ionic probe of claim 12 , with the ionic probe being substantially cylindrical and further comprising a substantially annular inner wall forming a substantially annular reference chamber located at the distal end, with the reference chamber holding the reference electrode and being in communication with the reference ion sensitive region, wherein the inner wall is substantially coaxial with the central axis.

19. The unitary ionic probe of claim 12 , further comprising one or more seals sealing the distal end of the elongate body, with the one or more seal allowing the active electrode and the reference electrode to exit the elongate body.

20. The unitary ionic probe of claim 12 , further comprising a single seal sealing the distal end of the elongate body, with the seal allowing the active electrode and the reference electrode to exit the elongate body.

21. A unitary ionic probe, comprising:

a substantially elongate body including a central axis, a proximal end, and a distal end;

an active ion sensitive region of pH glass that is located on and bonded into a circumferential outer surface of the elongate body at the proximal end;

an active electrode in ionic communication with the active ion sensitive region;

a reference ion sensitive region of pH glass that is located on and bonded into the circumferential outer surface and spaced-apart from the active ion sensitive region; and

a reference electrode in ionic communication with the reference ion sensitive region.

22. The unitary ionic probe of claim 21 , with the active ion sensitive region comprising a first portion of ion-sensitive material bonded into the elongate body and with the reference ion sensitive region comprising a second portion of ion-sensitive material bonded into the elongate body.

23. The unitary ionic probe of claim 21 , with the ionic probe being substantially cylindrical and further comprising an inner wall forming a reference chamber located at the distal end, with the reference chamber holding the reference electrode and being in communication with the reference ion sensitive region.

24. The unitary ionic probe of claim 21 , with the ionic probe being substantially cylindrical and further comprising a substantially annular inner wall forming a substantially annular reference chamber located at the distal end, with the reference chamber holding the reference electrode and being in communication with the reference ion sensitive region.

25. The unitary ionic probe of claim 21 , with the ionic probe being substantially cylindrical and further comprising a substantially annular inner wall forming a substantially annular reference chamber located at the distal end, with the reference chamber holding the reference electrode and being in communication with the reference ion sensitive region, wherein the inner wall is substantially coaxial with the central axis.

26. The unitary ionic probe of claim 21 , further comprising one or more seals sealing the distal end of the elongate body, with the one or more seals allowing the active electrode and the reference electrode to exit the elongate body.

27. The unitary ionic probe of claim 21 , further comprising a single seal sealing the distal end of the elongate body, with the seal allowing the active electrode and the reference electrode to exit the elongate body.

28. A unitary ionic probe, comprising:

a substantially elongate body including a central axis, a proximal end, and a distal end, with the elongate body being substantially cylindrical;

an active ion sensitive region of pH glass bonded into an exterior of the elongate body in a region of the proximal end;

an active electrode in ionic communication with the active ion sensitive region;

a reference ion sensitive region of pH glass bonded into the exterior of the elongate body and spaced-apart from the active ion sensitive region;

a reference electrode in ionic communication with the reference ion sensitive region; and

an inner wall forming a reference chamber located at the distal end, with the reference chamber holding the reference electrode and being in communication with the reference ion sensitive region.

29. The unitary ionic probe of claim 28 , wherein the active ion sensitive region extends substantially radially from the proximal end and wherein the reference ion sensitive region is located on a circumferential outer surface of the elongate body.

30. The unitary ionic probe of claim 29 , wherein the active ion sensitive region is substantially planar in shape.

31. The unitary ionic probe of claim 29 , wherein the active ion sensitive region is substantially domed in shape.

32. The unitary ionic probe of claim 28 , wherein the active ion sensitive region is located on a circumferential outer surface of the elongate body at the proximal end and wherein the reference ion sensitive region is located on the circumferential outer surface and spaced-apart from the active ion sensitive region.

33. The unitary ionic probe of claim 28 , with the active ion sensitive region comprising a first portion of ion-sensitive material bonded into the elongate body and with the reference ion sensitive region comprising a second portion of ion-sensitive material bonded into the elongate body.

34. The unitary ionic probe of claim 28 , with the inner wall and the reference chamber being substantially annular.

35. The unitary ionic probe of claim 28 , wherein the inner wall is substantially coaxial with the central axis.

36. The unitary ionic probe of claim 28 , further comprising one or more seals sealing the distal end of the elongate body, with the one or more seals allowing the active electrode and the reference electrode to exit the elongate body.

37. The unitary ionic probe of claim 28 , further comprising a single seal sealing the distal end of the elongate body, with the seal allowing the active electrode and the reference electrode to exit the elongate body.

38. The unitary ionic probe of claim 1 , wherein the substantially elongate body is formed of a piece of glass that includes a contiguous exterior comprising the active ion sensitive region and the reference ion sensitive region.