Evidence map›Paper›PMID 30199747›Full record

ArticleJournal of chromatography. B, Analytical technologies in the biomedical and life sciences2018

Stability control for breath analysis using GC-MS.

X Rosalind Wang, Julie Cassells, Amalia Z Berna

Open access · hybridAbstract read
In one paragraph

Article in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.3field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
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  4. Review
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  9. Volatile Cues Influence Host-Choice in Arthropod Pests.Animals : an open access journal from MDPI · 2020
    Review
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 2 countries.

X Rosalind WangCSIRO Data61, PO Box 76, Epping, NSW 1710, Australia. Electronic address: Rosalind.Wang@csiro.au.
Julie CassellsCSIRO Health and Biosecurity, GPO Box 1700, Canberra, ACT 2601, Australia.
Amalia Z BernaCSIRO Health and Biosecurity, GPO Box 1700, Canberra, ACT 2601, Australia; Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63110, USA. Electronic address: a.berna@wustl.edu.
CSIRO Health and Biosecurity · AUData61 · AUWashington University in St. Louis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gas chromatography mass spectrometry (GC-MS) instruments provide researchers and clinicians with a vast amount of information on sample composition, thus these instruments are seen as gold standard in breath analysis research. However, there are many factors that can confound the data measured by GC-MS instruments. These factors will make interpretation of GC-MS data unreliable for breath analysis research. We present in this paper detailed studies of two of these factors: instrument variation over time and chemical degradation of known biomarkers during storage in sorbent tubes. We found that a single quadrupole MS showed larger variability in measurements than a quadrupole time-of-flight MS when the same mixture of chemical standards was analysed for a period of up to 8 weeks. We recommend procedures of normalising the data. Moreover, the stability studies of breath biomarkers like thioethers, previously found indicative of malaria, showed that there is a need to store the samples in sorbent tubes at low temperature, 6 °C, for no more than 20 days to avoid the total decay of the chemicals.

Indexed as

Breath TestsGas Chromatography-Mass SpectrometryReference StandardsReproducibility of ResultsVolatile Organic CompoundsVolatile Organic CompoundsBreathDay of analysisGas chromatographyMass spectrometryStabilityThioethersVariability

Identifiers

PMID30199747
PMCPMC6167955
OpenAlexW2888787028

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.