Phosphate Buffer 0.2 M, pH 9.0

COMPOSITION: Mixture of 200 mM sodium phosphate monobasic and sodium phosphate dibasic

METHOD: Prepared in 18.2 megohms water and filtered through 0.22 micron filter.

PH: 9.0 +/- 0.15 after dilution with DI water.

STORAGE: Store at room temperature. This product is relatively stable under this condition. Best result obtained with use within 6-8 months of purchase.