Clinical Applications of Mass Spectrometry in Biomolecular Analysis

(GC/MS).- Quantification of 5-Hydroxyindoleacetic Acid in Urine by Ultra Performance Liquid Chromatography Tandem Mass Spectrometry.- Quantitation of IgG Subclasses in Serum Using Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS).- Quantification of Insulin Analogs by Liquid Chromatography-High Resolution Mass Spectrometry.- Differentiation of Common IGF-1 Variants Using HRAM-MS COM Determination with Follow-Up MS/MS Verification.- Monitoring and Identifying Insulin-Like Growth Factor 1 Variants by Liquid Chromatography-High Resolution Mass Spectrometry in a Clinical Laboratory.- Quantitation of Lactate in Cerebrospinal Fluid Using Liquid Chromatography-Electrospray Tandem Mass Spectrometry.- Multiplex Lysosomal Enzyme Activity Assay on Dried Blood Spots Using Tandem Mass Spectrometry.- Plasma Lysosphingolipid Biomarker Measurement by Liquid Chromatography-Tandem Mass Spectrometry.- Detection of 13C-Mannitol and Other Saccharides Using Tandem Mass Spectrometry for Evaluation ofIntestinal Permeability, or Leaky Gut.- LC-MS/MS Method for High Throughput Analysis of Methylmalonic Acid in Serum, Plasma, and Urine: Method for Analyzing Isomers without Chromatographic Separation.- Quantitation of 5-Methyltetrahydrofolate in Cerebrospinal Fluid Using Liquid Chromatography Electrospray Tandem Mass Spectrometry.- Screening of Organic Acidurias by Gas Chromatography Mass Spectrometry (GC-MS).- Identification of Urine Organic Acids for the Detection of Inborn Errors of Metabolism Using Urease and Gas Chromatography-Mass Spectrometry (GC/MS).- Quantitative Organic Acids in Urine by Two-Dimensional Gas Chromatography-Time-of-Flight Mass Spectrometry (GCxGC-TOFMS).- Quantification of Parathyroid Hormone and Its Fragments in Serum by Liquid Chromatography-High Resolution Mass Spectrometry.- High Sensitivity Measurement of Parathyroid Hormone Related Protein (PTHrP) in Plasma by LC-MS/MS.- Quantitation of Phenylalanine in Dried Blood Spot using Liquid Chromatography TandemMass Spectrometry for Monitoring of Patients with Phenylketonuria (PKU).- An Optimized Procedure for Proteomic Analysis of Extracellular Vesicles Using In-Stage Tip Digestion and DIA LC-MS/MS: Application to Liquid Biopsy in Cancer.- High-Throughput Plasma Proteomic Profiling.- Quantitation of Purine in Urine by Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry.- Quantitation of Pyrimidine in Urine by Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry.- Quantitation of Renin Activity in Plasma Using Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS).- Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) Method for the Quantification Steroids Androstenedione, Dehydroepiandrosterone, 11-Deoxycortisol, 17-Hydroxyprogesterone, and Testosterone.- A User-Friendly Sample Preparation Alternative for Manual and Automated LC-MS/MS Quantification of Testosterone.- Quantitation of Thyroglobulin in Serum Using SISCAPA and Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS).- Quantitation of Free Thyroxine by Equilibrium Dialysis and Liquid Chromatography-Tandem Mass Spectrometry.- Quantification of Tryptophan, Indole, and Indoxyl Sulfate in Urine Using Liquid Chromatography-Tandem Mass Spectrometry.- Very Long-Chain Fatty Acids Quantification by Gas-Chromatography Mass Spectrometry.- Quantification of Very Long-Chain and Branched-Chain Fatty Acids in Plasma by Liquid Chromatography-Tandem Mass Spectrometry.- High Throughput Analysis of 25-OH-Vitamin D2 and D3 Using Multi-Channel Liquid Chromatography-Tandem Mass Spectrometry.- Quantification of 25-Hydroxyvitamin D2 and D3 Using Liquid Chromatography-Tandem Mass Spectrometry.