Fast and Reliable Method for the Analysis of Methylmalonic Acid from Human Plasma

APPLICATION NOTE No. 21172 Fast and reliable method for the analysis of methylmalonic acid from human plasma Authors: Jon Bardsley, Thermo Fisher Scientific, Runcorn, UK; James Goldberg, Thermo Fisher Scientific, West Palm Beach, Florida, US Keywords: Methylmalonic acid (MMA), succinic…

Jon Bardsley, Thermo Fisher Scientific, Runcorn, UK Key Words Steroid hormones, steroids, SOLA, SOLAµ HRP, reversed phase SPE, LC-MS/MS, Syncronis C18, micro-scale SPE, testosterone, androstenedione, 17-hydroxy progesterone Goal To describe an accurate and precise high-throughput analytical technique for the analysis…

APPLICATION NOTE No. 21173 Fast and reliable method for the analysis of testosterone, androstenedione, and 17-hydroxy progesterone from human plasma Authors: Jon Bardsley, Thermo Fisher Scientific, Runcorn, UK Keywords: Steroid hormones, steroids, SOLA, SOLAµ HRP, reversed phase SPE, LC-MS/MS, Syncronis…

Separation and Quantitation of Total Plasma Homocysteine and Methylmalonic Acid by LC-MS/MS Analysis Samantha Herbick; Restek Corporation Results and Discussion Introduction Homocysteine is an endogenous sulfur containing amino acid that is formed during the metabolism of methionine to cysteine. Homocysteine…