1
Dissolve ingredients of solution A except carbonates, sparge with 100% N2 gas for 30 - 45 min to make it anoxic, then add bicarbonate and carbonate, adjust pH to 9.0, dispense under same gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. Prior to inoculation complete the medium by adding appropriate amounts of sterile solutions B to H prepared under 100% N2 gas atmosphere. Adjust pH of the complete medium to 8.7 - 9.0, if necessary.
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