Raw AD values were recorded using the two
electrode shapes: a thin tapered tip with a 180um column of LIX (shape-A)
and a steep shank with 15-25um column of LIX (shape-B).
Data obtained while moving towards (+ move) and away (- move) from
an artificial Na2CO3 source illustrated that shape-B
adjusts more efficiently to the probe's movement in obtaining stable results.