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The storage buffer contains 50% glycerol and 0.05% sodium azide per data sheet. Please confirm whether the buffer is "0.01 M phosphate buffered saline" per our listing. Also, please ask whether vendor has assayed the purity by SDS and whether they have a spec for purity/.
Asked on Feb 20 2007
Thank you for your enquiry. The antibodies are >95% pure by SDS-PAGE. The sodium chloride concentration is 0.25 M. The phosphate concentration has changed slightly over the course of years as the peptide-affinity column elution protocol has been optimized, but it has always fallen within the range of 4 to 10 mM before adding glycerol to 50%, and is therefore 2 to 5 mM after the addition of glycerol. I hope this information helps, please do not hesitate to contact us if you need any more advice or information.
Answered on Feb 27 2007