Evidence map›Paper›PMID 36183043›Full record

ArticleAnalytical and bioanalytical chemistry2022

A sensitive LC-MS/MS method for isomer separation and quantitative determination of 51 pyrrolizidine alkaloids and two tropane alkaloids in cow's milk.

Lisa Monika Klein, Angelika Miriam Gabler, Michael Rychlik, Christoph Gottschalk, Florian Kaltner

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Analytical and bioanalytical chemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.3field-weighted citation impact, top 6% 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

11 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
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  5. Article
  6. Alkaloid profile of Italian alpine milk.Journal of food science · 2025
    Article
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  8. Review
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  11. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 5 institutions in 2 countries.

Lisa Monika KleinChair of Food Safety and Analytics, Faculty of Veterinary Medicine, Ludwig Maximilian University of Munich, Schoenleutnerstr. 8, 85764, Oberschleissheim, Germany. lisa.klein@ls.vetmed.uni-muenchen.de.ORCID http://orcid.org/0000-0002-8492-167X
Angelika Miriam GablerChair of Food Safety and Analytics, Faculty of Veterinary Medicine, Ludwig Maximilian University of Munich, Schoenleutnerstr. 8, 85764, Oberschleissheim, Germany.ORCID http://orcid.org/0000-0003-3189-3932
Michael RychlikChair of Analytical Food Chemistry, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Maximus-von-Imhof-Forum 2, 85354, Freising, Germany.ORCID http://orcid.org/0000-0002-5826-6288
Christoph GottschalkChair of Food Safety and Analytics, Faculty of Veterinary Medicine, Ludwig Maximilian University of Munich, Schoenleutnerstr. 8, 85764, Oberschleissheim, Germany.ORCID http://orcid.org/0000-0003-1292-8933
Florian KaltnerChair of Food Safety and Analytics, Faculty of Veterinary Medicine, Ludwig Maximilian University of Munich, Schoenleutnerstr. 8, 85764, Oberschleissheim, Germany.ORCID http://orcid.org/0000-0003-2697-7461
Federal Institute for Risk Assessment · DEHealth and Safety Authority · IEJustus-Liebig-Universität Gießen · DELudwig-Maximilians-Universität München · DETechnical University of Munich · DE

Funding

Bundesministerium für Ernährung und Landwirtschaft 2818NA004
6 · The paper itself

Abstract

1,2-Unsaturated pyrrolizidine alkaloids (PA), their corresponding N-oxides (PANO), and tropane alkaloids (TA) are toxic secondary plant metabolites. Their possible transfer into the milk of dairy cows has been studied in feeding trials; however, only few data on the occurrence of these toxins in milk are available. In this study, the development of a sensitive analytical approach for the simultaneous detection and quantification of a broad range of 54 PA/PANO as well as of the TA atropine and scopolamine in milk of dairy cows is presented. The method optimisation focused on sensitivity and separation of PA/PANO isomers. Milk samples were extracted using liquid-liquid extraction with aqueous formic acid and n-hexane, followed by a cation-exchange solid-phase extraction for purification. Reversed phase liquid chromatography tandem mass spectrometry (LC-MS/MS) analysis was performed using alkaline solvent conditions. Validation proved low limits of detection and quantification of 0.005 to 0.054 µg/L and of 0.009 to 0.123 µg/L, respectively. For 51 of the 54 tested PA/PANO and both TA, the recovery rates ranged from 64 to 127% with repeatability (RSD

Indexed as

Pyrrolizidine AlkaloidsAnimalsChromatography, High Pressure LiquidChromatography, LiquidMilkTandem Mass SpectrometryTropanesPyrrolizidine AlkaloidsTropanesLiquid chromatography tandem mass spectrometryMethod developmentMilkPyrrolizidine alkaloidsTropane alkaloids

Identifiers

PMID36183043
PMCPMC9613554
OpenAlexW4298191219

What OpenQuestion holds

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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.