Pickering Laboratories, Inc. Diluent Na220

CHROMATOGRAPHIC GRADE™ SAMPLES AND STANDARDS DILUENTS FOR AMINO ACID ANALYSIS Use of these diluents is essential to ensuring reproducibility from injection to injection. They establish a uniform pH and ion concentration at the outset, regardless of the source and pre-treatment of the sample. The sample is maintained buffered and at optimum pH for sample storage and analysis. Use Na220 for hydrolysate samples and to dilute amino acid calibration standards for use with Sodium columns and buffers. Use Li220 for native amino acid samples and calibration standards for use with Lithium columns and buffers.