iloveblue iloveblue

24-08-2014
Chemistry

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a piece of unglazed porcelain used to test a minerals streak

a piece of unglazed porcelain used to test a minerals streak class=

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mashenka mashenka

25-08-2014

This piece of porcelain is called a streak plate. This method is a method of rapid qualitative isolation and was developed by Robert Koch. It was developed to obtain pure bacterial cultures.

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