Hi Kathy,
 We do the microwave Rhodanine for copper method that is in Chuck
Churukian's book page 133, 134. If you don't have the book, I can fax you
the method with Chuck's permission. We use this method a lot and love it
because it is so fast. He does state that this method might not give as
good results as the overnight method, but it has always worked for us.

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Jill Songer HT (ASCP)
Virginia-Maryland Regional College of Veterinary Medicine
Veterinary Teaching Hospital
Virginia Tech
Blacksburg, Virginia 24061