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Pink fecal coliforms?Expand / Collapse
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Posted 10/23/2007 7:39:13 AM
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Pink fecal coliforms? What does this mean? Using Method 9222 D, I sometimes get pink coliforms when I expect only blue. Does this mean that my sample is TNTC or does it just mean there are other than fecal coliforms?

Pearl McLean
Post #7176
Posted 10/24/2007 6:21:29 PM
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Pearl,

It may be the rosolic acid that gives the colonies the red color (although it id suppose to inhibit confluent growth), they should not be counted as fecal coliform colonies.

Bob Whitworth

Post #7206
Posted 10/25/2007 4:27:30 PM
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Pearl  I have posted something similar in the Laboratory Management forum below.  There may be more responses down there- it tends to have more activity than this board.  Go 'Home' and you'll find it under 'Technical Solutions Forums."'
Post #7220
Posted 10/27/2007 9:29:31 AM
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Pearl, I have just posted on technical solution forum, that may apply in your case as well.

sabir
Post #7262
Posted 10/28/2007 7:30:02 PM
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Any good biologest like me and Victor  knows that pink FC's are girls and blue FC's are boys. Are you STUPIT?

Happy Holloween

Post #7270
Posted 10/29/2007 11:09:42 AM
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I thought maybe they were Communist.

David
Post #7276
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