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Study · Not a test of the peptide alone · 2026

13 results

Development and validation of a multiplexed LC-HRMS method for nine GLP-1 receptor agonists and its pharmaceutical application.

Tong LH, Leung KK, Hung CT

Journal of chromatography. A21 Jul 2026

Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study13

No result from this study comes from a test of the peptide.

Studies that did not test the peptide alone13

In this study, the peptide was a lab tool or a carrier, part of a mix, or the subject of a lab method. These results are not evidence about taking the peptide.

  1. 01LabNot a test of Mazdutide aloneIn vitro (cell-free)Other

    A top-down LC-HRMS/MS method identified nine GLP-1 receptor agonists, including mazdutide, with mass accuracy of 0.0-0.5 ppm and fragment ion coverage of 76-100%.

    In plain wordsIn lab tests, a mass spectrometry method identified mazdutide and eight other drugs with high accuracy. The ranges cover all nine drugs together.

    Peptide
    Mazdutide
    Outcome
    Not applicablePeptide identification by top-down HRMS/MS
    Study

    n: not reported in source

    LC-HRMS assay
    Outcome group
    Analytical methods and detection · Pharmacology

    Measurements

    Mass accuracy
    0 to 0.5 ppm
    nine GLP-1 RAs
    Fragment ion coverage
    76 to 100%
    nine GLP-1 RAs

    Source sentences

    Summary
    Peptide identification adopted a top-down approach, achieving mass accuracy of 0.0-0.5 ppm and fragment ion coverage of 76-100%.
    1 context sentence
    Summary · context
    nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists (GLP-1 RAs): bofanglutide, ecnoglutide, exenatide, liraglutide, mazdutide, retatrutide, semaglutide, survodutide, and tirzepatide.

    In this study, Mazdutide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Mazdutide.

  2. 02LabNot a test of Mazdutide aloneIn vitro (cell-free)Other

    The LC-HRMS method was linear over 4-235 ng/mL for nine GLP-1 receptor agonists including mazdutide, with LODs of 0.44-2.06 ng/mL and LOQs of 8.29-11.74 ng/mL.

    In plain wordsIn lab tests, the method measured mazdutide and eight other drugs over a set concentration range. The ranges cover all nine drugs together.

    Peptide
    Mazdutide
    Outcome
    Not applicableLinearity and detection limits of LC-HRMS quantitation
    Study

    n: not reported in source

    LC-HRMS assay
    Outcome group
    Analytical methods and detection · Pharmacology

    Measurements

    Linearity r²
    ≥ 0.995 r²
    nine GLP-1 RAs
    Linear range
    4 to 235 ng/mL
    nine GLP-1 RAs
    LOD
    0.44 to 2.06 ng/mL
    nine GLP-1 RAs
    LOQ
    8.29 to 11.74 ng/mL
    nine GLP-1 RAs

    Source sentences

    Summary
    The method showed good linearity (r² ≥ 0.995) over 4-235 ng/mL, with LODs of 0.44-2.06 ng/mL and LOQs of 8.29-11.74 ng/mL.
    1 context sentence
    Summary · context
    nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists (GLP-1 RAs): bofanglutide, ecnoglutide, exenatide, liraglutide, mazdutide, retatrutide, semaglutide, survodutide, and tirzepatide.

    In this study, Mazdutide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Mazdutide.

  3. 03LabNot a test of Mazdutide aloneIn vitro (cell-free)Other

    The optimised method gave baseline separation for most of the nine peptides within a 20-minute runtime; the abstract does not say which peptides.

    In plain wordsIn lab tests, the method separated most of the nine drugs within a 20-minute run. The abstract does not say which ones.

    Peptide
    Mazdutide
    Outcome
    Not applicableChromatographic resolution and runtime
    Study

    n: not reported in source

    LC-HRMS assay
    Outcome group
    Analytical methods and detection · Pharmacology

    Measurements

    Runtime
    20 min
    nine GLP-1 RAs

    Source sentences

    Summary
    The optimised method provided excellent resolution with baseline separation for most peptides within a 20-minute runtime.
    1 context sentence
    Summary · context
    nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists (GLP-1 RAs): bofanglutide, ecnoglutide, exenatide, liraglutide, mazdutide, retatrutide, semaglutide, survodutide, and tirzepatide.

    In this study, Mazdutide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Mazdutide.

  4. 04LabNot a test of Survodutide aloneIn vitro (cell-free)Other

    A top-down LC-HRMS/MS method identified nine GLP-1 receptor agonists, including survodutide, with mass accuracy of 0.0-0.5 ppm and fragment ion coverage of 76-100%.

    In plain wordsIn lab tests, a mass spectrometry method identified survodutide and eight other drugs with high accuracy. The ranges cover all nine drugs together.

    Outcome
    Not applicablePeptide identification by top-down HRMS/MS
    Study

    n: not reported in source

    LC-HRMS assay
    Outcome group
    Analytical methods and detection · Pharmacology

    Measurements

    Mass accuracy
    0 to 0.5 ppm
    nine GLP-1 RAs
    Fragment ion coverage
    76 to 100%
    nine GLP-1 RAs

    Source sentences

    Summary
    Peptide identification adopted a top-down approach, achieving mass accuracy of 0.0-0.5 ppm and fragment ion coverage of 76-100%.
    1 context sentence
    Summary · context
    nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists (GLP-1 RAs): bofanglutide, ecnoglutide, exenatide, liraglutide, mazdutide, retatrutide, semaglutide, survodutide, and tirzepatide.

    In this study, Survodutide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Survodutide.

  5. 05LabNot a test of Survodutide aloneIn vitro (cell-free)Other

    The LC-HRMS method was linear over 4-235 ng/mL for nine GLP-1 receptor agonists including survodutide, with LODs of 0.44-2.06 ng/mL and LOQs of 8.29-11.74 ng/mL.

    In plain wordsIn lab tests, the method measured survodutide and eight other drugs over a set concentration range. The ranges cover all nine drugs together.

    Outcome
    Not applicableLinearity and detection limits of LC-HRMS quantitation
    Study

    n: not reported in source

    LC-HRMS assay
    Outcome group
    Analytical methods and detection · Pharmacology

    Measurements

    Linearity r²
    ≥ 0.995 r²
    nine GLP-1 RAs
    Linear range
    4 to 235 ng/mL
    nine GLP-1 RAs
    LOD
    0.44 to 2.06 ng/mL
    nine GLP-1 RAs
    LOQ
    8.29 to 11.74 ng/mL
    nine GLP-1 RAs

    Source sentences

    Summary
    The method showed good linearity (r² ≥ 0.995) over 4-235 ng/mL, with LODs of 0.44-2.06 ng/mL and LOQs of 8.29-11.74 ng/mL.
    1 context sentence
    Summary · context
    nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists (GLP-1 RAs): bofanglutide, ecnoglutide, exenatide, liraglutide, mazdutide, retatrutide, semaglutide, survodutide, and tirzepatide.

    In this study, Survodutide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Survodutide.

  6. 06LabNot a test of Survodutide aloneIn vitro (cell-free)Other

    The optimised method gave baseline separation for most of the nine peptides within a 20-minute runtime; the abstract does not say which peptides.

    In plain wordsIn lab tests, the method separated most of the nine drugs within a 20-minute run. The abstract does not say which ones.

    Outcome
    Not applicableChromatographic resolution and runtime
    Study

    n: not reported in source

    LC-HRMS assay
    Outcome group
    Analytical methods and detection · Pharmacology

    Measurements

    Runtime
    20 min
    nine GLP-1 RAs

    Source sentences

    Summary
    The optimised method provided excellent resolution with baseline separation for most peptides within a 20-minute runtime.
    1 context sentence
    Summary · context
    nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists (GLP-1 RAs): bofanglutide, ecnoglutide, exenatide, liraglutide, mazdutide, retatrutide, semaglutide, survodutide, and tirzepatide.

    In this study, Survodutide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Survodutide.

  7. 07LabNot a test of Semaglutide aloneOther designOther

    An LC-HRMS method quantified semaglutide, with good linearity over 4-235 ng/mL, as one of nine GLP-1 receptor agonists.

    In plain wordsIn lab tests, a mass spectrometry method measured semaglutide and eight other GLP-1 drugs over a set concentration range.

    Outcome
    Not applicableLC-HRMS linearity and detection limits
    Study

    n: not reported in source

    Outcome group
    Analytical methods and detection · Pharmacology

    Source sentences

    Summary
    The method showed good linearity (r² ≥ 0.995) over 4-235 ng/mL, with LODs of 0.44-2.06 ng/mL and LOQs of 8.29-11.74 ng/mL.
    1 context sentence
    Summary · context
    A rapid, sensitive, and selective multiplexed liquid chromatography-high-resolution mass spectrometry (LC-HRMS) method was developed and validated for the identification and quantitation of nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists

    In this study, Semaglutide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Semaglutide.

  8. 08LabNot a test of Liraglutide aloneOther designOther

    An LC-HRMS method quantified liraglutide, with good linearity over 4-235 ng/mL, as one of nine GLP-1 receptor agonists.

    In plain wordsIn lab tests, a mass spectrometry method measured liraglutide and eight other GLP-1 drugs over a set concentration range.

    Outcome
    Not applicableLC-HRMS linearity and detection limits
    Study

    n: not reported in source

    Outcome group
    Analytical methods and detection · Pharmacology

    Source sentences

    Summary
    The method showed good linearity (r² ≥ 0.995) over 4-235 ng/mL, with LODs of 0.44-2.06 ng/mL and LOQs of 8.29-11.74 ng/mL.
    1 context sentence
    Summary · context
    A rapid, sensitive, and selective multiplexed liquid chromatography-high-resolution mass spectrometry (LC-HRMS) method was developed and validated for the identification and quantitation of nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists

    In this study, Liraglutide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Liraglutide.

  9. 09LabNot a test of Retatrutide aloneOther designOther

    An LC-HRMS method quantified retatrutide, with good linearity over 4-235 ng/mL, as one of nine GLP-1 receptor agonists.

    In plain wordsIn lab tests, a mass spectrometry method measured retatrutide and eight other GLP-1 drugs over a set concentration range.

    Outcome
    Not applicableLC-HRMS linearity and detection limits
    Study

    n: not reported in source

    Outcome group
    Analytical methods and detection · Pharmacology

    Source sentences

    Summary
    The method showed good linearity (r² ≥ 0.995) over 4-235 ng/mL, with LODs of 0.44-2.06 ng/mL and LOQs of 8.29-11.74 ng/mL.
    1 context sentence
    Summary · context
    A rapid, sensitive, and selective multiplexed liquid chromatography-high-resolution mass spectrometry (LC-HRMS) method was developed and validated for the identification and quantitation of nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists

    In this study, Retatrutide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Retatrutide.

  10. 10LabNot a test of Tirzepatide aloneOther designOther

    An LC-HRMS method quantified tirzepatide, with good linearity over 4-235 ng/mL, as one of nine GLP-1 receptor agonists.

    In plain wordsIn lab tests, a mass spectrometry method measured tirzepatide and eight other GLP-1 drugs over a set concentration range.

    Outcome
    Not applicableLC-HRMS linearity and detection limits
    Study

    n: not reported in source

    Outcome group
    Analytical methods and detection · Pharmacology

    Source sentences

    Summary
    The method showed good linearity (r² ≥ 0.995) over 4-235 ng/mL, with LODs of 0.44-2.06 ng/mL and LOQs of 8.29-11.74 ng/mL.
    1 context sentence
    Summary · context
    A rapid, sensitive, and selective multiplexed liquid chromatography-high-resolution mass spectrometry (LC-HRMS) method was developed and validated for the identification and quantitation of nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists

    In this study, Tirzepatide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Tirzepatide.

  11. 11LabNot a test of Semaglutide aloneOther designOther

    The LC-HRMS method gave mean recoveries of 113.7-118.4% for marketed formulations of liraglutide, semaglutide and tirzepatide.

    In plain wordsIn lab tests, a mass spectrometry method measured semaglutide in marketed products, with recoveries of 113.7-118.4% across three drugs.

    Outcome
    Not applicableRecovery from marketed formulations
    Study

    n: not reported in source

    Outcome group
    Analytical methods and detection · Pharmacology

    Measurements

    mean recovery
    113.7 to 118.4%
    marketed formulations

    Source sentences

    Summary
    It was successfully applied to marketed formulations of liraglutide, semaglutide, and tirzepatide using a simple dilute-and-shoot procedure, yielding mean recoveries of 113.7-118.4%.
    1 context sentence
    Summary · context
    A rapid, sensitive, and selective multiplexed liquid chromatography-high-resolution mass spectrometry (LC-HRMS) method was developed and validated for the identification and quantitation of nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists

    In this study, Semaglutide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Semaglutide.

  12. 12LabNot a test of Liraglutide aloneOther designOther

    The LC-HRMS method gave mean recoveries of 113.7-118.4% for marketed formulations of liraglutide, semaglutide and tirzepatide.

    In plain wordsIn lab tests, a mass spectrometry method measured liraglutide in marketed products, with recoveries of 113.7-118.4% across three drugs.

    Outcome
    Not applicableRecovery from marketed formulations
    Study

    n: not reported in source

    Outcome group
    Analytical methods and detection · Pharmacology

    Measurements

    mean recovery
    113.7 to 118.4%
    marketed formulations

    Source sentences

    Summary
    It was successfully applied to marketed formulations of liraglutide, semaglutide, and tirzepatide using a simple dilute-and-shoot procedure, yielding mean recoveries of 113.7-118.4%.
    1 context sentence
    Summary · context
    A rapid, sensitive, and selective multiplexed liquid chromatography-high-resolution mass spectrometry (LC-HRMS) method was developed and validated for the identification and quantitation of nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists

    In this study, Liraglutide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Liraglutide.

  13. 13LabNot a test of Tirzepatide aloneOther designOther

    The LC-HRMS method gave mean recoveries of 113.7-118.4% for marketed formulations of liraglutide, semaglutide and tirzepatide.

    In plain wordsIn lab tests, a mass spectrometry method measured tirzepatide in marketed products, with recoveries of 113.7-118.4% across three drugs.

    Outcome
    Not applicableRecovery from marketed formulations
    Study

    n: not reported in source

    Outcome group
    Analytical methods and detection · Pharmacology

    Measurements

    mean recovery
    113.7 to 118.4%
    marketed formulations

    Source sentences

    Summary
    It was successfully applied to marketed formulations of liraglutide, semaglutide, and tirzepatide using a simple dilute-and-shoot procedure, yielding mean recoveries of 113.7-118.4%.
    1 context sentence
    Summary · context
    A rapid, sensitive, and selective multiplexed liquid chromatography-high-resolution mass spectrometry (LC-HRMS) method was developed and validated for the identification and quantitation of nine structurally diverse peptide-based glucagon-like peptide-1 receptor agonists

    In this study, Tirzepatide was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Tirzepatide.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Versions 7 to 42Current

    28 Oct 2026, 02:04 UTC

    The same notice was added 36 times, first on 9 Oct 2026, 18:17 UTC. The status did not change between them.

    Study results updated

  2. Versions 2 to 6

    9 Oct 2026, 03:07 UTC

    The same notice was added 5 times, first on 9 Oct 2026, 03:04 UTC. The status did not change between them.

    Study data updated · source update from Europe PMC

  3. Version 1

    9 Oct 2026, 02:47 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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