Sunny asks:
 I'd like to know which type of Ion Chromatography can measure the local
dot ionic cleanliness.  Anyone can tell me which company produce this
equipment?

Doug Pauls responds:

No company that I know of builds ion chromatography equipment to do spot
ionic checks.  IC equipment merely analyzes extract solutions.  If you want
to measure localized ion concentrations, you have to develop a localized
extraction technique.  This might involve immersion of a portion of the
assembly in extract solution, or building some time of non-contaminating
enclosure around the area to be extracted.  Once you can localize the
extraction, collect the solution an analyze it with the IC equipment

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