This service analyzes various mono-, di-, and triphosphates, including ATP, ADP, and AMP, for energy charge analysis, as well as creatine and phosphocreatine. Nucleotides are measured by LC/QQQ and quantified based on external standard calibration curves. This analysis is crucial for understanding cellular energy dynamics, signaling pathways, and nucleic acid synthesis. The service can add additional nucleotides upon request if authentic standards are available.