Urine Organic Acid Analysis for Inherited Metabolic Disease Using Gas Chromatography-Mass Spectrometry

2009 ◽  
pp. 423-431 ◽  
Author(s):  
Patricia M. Jones ◽  
Michael J. Bennett
Keyword(s):  
Mass Spectrometry ◽  
Metabolic Disease ◽  
Gas Chromatography ◽  
Organic Acid ◽  
Gas Chromatography Mass Spectrometry ◽  
Inherited Metabolic Disease ◽  
Urine Organic Acid Analysis ◽  
Organic Acid Analysis ◽  
Chromatography Mass Spectrometry ◽  
Urine Organic Acid

Ruminal organic acid analysis by gas chromatography/mass spectrometry

1989 ◽  
Vol 37 (4) ◽  
pp. 970-974 ◽  
Author(s):  
Sergio Daolio ◽  
Mario Bonsembiante ◽  
Giovanni Bittante ◽  
Maurizio Ramanzin ◽  
Piero Rinaldo
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Organic Acid ◽  
Gas Chromatography Mass Spectrometry ◽  
Organic Acid Analysis ◽  
Chromatography Mass Spectrometry

scholarly journals Organic Acid Profiling Analysis in Culture Media of Lactic Acid Bacteria by Gas Chromatography-Mass Spectrometry

2012 ◽  
Vol 3 (3) ◽  
pp. 74-77 ◽  
Author(s):  
Jae-Yeon Lee ◽  
Duc-Toan Nguyen ◽  
Young-Shik Park ◽  
Kyo-Yeol Hwang ◽  
Yong-Seok Cho ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Organic Acid ◽  
Culture Media ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Profiling Analysis

Laboratory practice of organic acid analysis based on gas chromatography–mass spectrometry in China

2021 ◽  
Vol 45 (4-5) ◽  
pp. 229-235
Author(s):  
Lizi Jin ◽  
Tianjiao Zhang ◽  
Jie Zeng ◽  
Chuanbao Zhang
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Organic Acid ◽  
Internal Standard ◽  
Turnaround Time ◽  
Gas Chromatography Mass Spectrometry ◽  
Reference Ranges ◽  
Laboratory Practice ◽  
Chromatography Mass Spectrometry ◽  
Quantitative Results

Abstract Objectives The aim of this study is to investigate the status of laboratory practice of organic acid (OA) analysis using gas chromatography–mass spectrometry in China. Methods A survey, investigating details of laboratory practice of OA analysis, was issued on the website of the National Center for Clinical Laboratories of China. Nationwide external quality assessment participating laboratories of OA assay were informed to participate in this survey. Results A total of 36 laboratories completed this survey. Most laboratories started OA analysis during 2016–2020. Most (100%) labs reported semi-quantitative results, in which 79.4% of labs adopted the form of the ratio of peak area of OA and quantitative internal standard. Rare labs reported quantitative results. Few labs released reports in three days, most in 5–7 days. The source of control materials varied, 64.5% of labs adapted self-made materials. A total of 43.8% of laboratories directly used reference intervals (RIs) from published literature, 43.8% of laboratories established RIs themselves, but 21.2% of laboratories reported they didn’t verify RIs. Conclusions Appropriate supervision for the organic acid assay is needed in the aspect of the turnaround time of reporting results, the establishment validation and verification of reference ranges, and the quantification of results.

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