Seventy-six organic acids in urine specimens are determined with quantitative two
dimensional Gas Chromatography-Time of Flight Mass Spectrometry (GCxGC-TOFMS). The …

Comprehensive two-dimensional gas chromatography (GC× GC) time-of-flight mass
spectrometry (ToFMS) was applied to the analysis of urinary organic acids from patients with …

BACKGROUND: Gas chromatograph mass-spectrometric (GC/MS) method of analysis for
urinary organic acids is used for the diagnosis of a variety of metabolic disorders. The …

Urine organic acid analysis is an essential component of the workup of the patient
suspected to have an inborn error of metabolism (IEM). Urine contains several hundred …

抄録 We have developed a personal computer-based system designed for automated
metabolic profiling of urinary organic acids by gas chromatography-mass spectrometry …

A gas chromatography tandem mass spectrometry method using an ion trap GC/MS system
was developed to quickly screen urine samples for 14 organic acids associated with multiple …

A specialized gas chromatography/mass spectrometry/computer (GC/MS/COM) system is
described which combines the efficiency of high resolution gas chromatography (HRGC) …

A multi‐stage screening and identification scheme for the diagnosis of inborn errors in
amino acid, fatty acid, carbohydrate and intermediary metabolism is described. The method …

A sensitive, accurate and precise method was developed for the quantification of a large
number of organic acids in human urine by GC-MS/MS. The analytes were selected based …

Organic acidurias or acidemias are a group of diverse disorders caused by decreased or
diminished activity of specific enzyme or transporter involved in the metabolism of amino …