Orbitrap technology for comprehensive metabolite-based liquid chromatographic–high resolution-tandem mass spectrometric urine drug screening – Exemplified for cardiovascular drugs... by Helfer, Andreas G., Michely, Julian A., Weber, Armin A., Meyer, Markus R., Maurer, Hans H.

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Analysis of α- and β-amanitin in Human Plasma at Subnanogram per Milliliter Levels by Reversed Phase Ultra-High Performance Liquid Chromatography Coupled to Orbitrap Mass Spectrome... by Bambauer, Thomas P, Wagmann, Lea, Weber, Armin A, Meyer, Markus R

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Drugs of abuse screening in urine as part of a metabolite-based LC-MSn screening concept by Wissenbach, Dirk K., Meyer, Markus R., Remane, Daniela, Philipp, Anika A., Weber, Armin A., Maurer, Hans H.

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Use of liquid chromatography coupled to low- and high-resolution linear ion trap mass spectrometry for studying the metabolism of paynantheine, an alkaloid of the herbal drug Krato... by Philipp, Anika A, Wissenbach, Dirk K, Weber, Armin. A, Zapp, Josef, Zoerntlein, Siegfried W, Kanogsunthornrat, Jidapha, Maurer, Hans H

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Liquid chromatography-high resolution-tandem mass spectrometry using Orbitrap technology for comprehensive screening to detect drugs and their metabolites in blood plasma by Helfer, Andreas G., Michely, Julian A., Weber, Armin A., Meyer, Markus R., Maurer, Hans H.

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Development and application of a strategy for analyzing eight biomarkers in human urine to verify toxic mushroom or ricinus communis ingestions by means of hydrophilic interaction... by Bambauer, Thomas P., Wagmann, Lea, Maurer, Hans H., Weber, Armin A., Meyer, Markus R.

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Development of the first metabolite-based LC-MS(n) urine drug screening procedure-exemplified for antidepressants by Wissenbach, Dirk K, Meyer, Markus R, Remane, Daniela, Weber, Armin A, Maurer, Hans H

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Further development of a liquid chromatography–high‐resolution mass spectrometry/mass spectrometry‐based strategy for analyzing eight biomarkers in human urine indicating toxic mus... by Bambauer, Thomas P., Wagmann, Lea, Weber, Armin A., Meyer, Markus R.

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Nano liquid chromatography-high-resolution mass spectrometry for the identification of metabolites of the two new psychoactive substances N-(ortho-methoxybenzyl)-3,4-dimethoxyamphe... by Caspar, Achim T., Meyer, Markus R., Westphal, Folker, Weber, Armin A., Maurer, Hans H.

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Abuse of nutmeg seeds: Detectable by means of liquid chromatography‐mass spectrometry techniques? by Manier, Sascha K., Wagmann, Lea, Weber, Armin A., Meyer, Markus R.

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Evaluation of novel organosilane modifications of paper spray mass spectrometry substrates for analyzing polar compounds by Bambauer, Thomas P., Maurer, Hans H., Weber, Armin A., Hannig, Matthias, Pütz, Norbert, Koch, Marcus, Manier, Sascha K., Schneider, Marc, Meyer, Markus R.

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Screening, library-assisted identification and validated quantification of oral antidiabetics of the sulfonylurea-type in plasma by atmospheric pressure chemical ionization liquid... by Maurer, Hans H, Kratzsch, Carsten, Kraemer, Thomas, Peters, Frank T, Weber, Armin A

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Development of the first metabolite-based LC-MS n urine drug screening procedure-exemplified for antidepressants by Wissenbach, Dirk K, Meyer, Markus R, Remane, Daniela, Weber, Armin A, Maurer, Hans H

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LC-HR-MS/MS standard urine screening approach: Pros and cons of automated on-line extraction by turbulent flow chromatography versus dilute-and-shoot and comparison with establishe... by Helfer, Andreas G., Michely, Julian A., Weber, Armin A., Meyer, Markus R., Maurer, Hans H.

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A validated GC-MS procedure for fast, simple, and cost-effective quantification of glycols and GHB in human plasma and their identification in urine and plasma developed for emerge... by Meyer, Markus R., Weber, Armin A., Maurer, Hans H.

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Validated electrospray liquid chromatographic-mass spectrometric assay for the determination of the mushroom toxins alpha- and beta-amanitin in urine after immunoaffinity extractio... by Maurer, H H, Schmitt, C J, Weber, A A, Kraemer, T

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Phase I and II metabolites of speciogynine, a diastereomer of the main Kratom alkaloid mitragynine, identified in rat and human urine by liquid chromatography coupled to low‐ and h... by Philipp, Anika A, Wissenbach, Dirk K, Weber, Armin A, Zapp, Josef, Maurer, Hans H

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Towards a universal LC-MS screening procedure - can an LIT LC-MS(n) screening approach and reference library be used on a quadrupole-LIT hybrid instrument? by Wissenbach, Dirk K, Meyer, Markus R, Weber, Armin A, Remane, Daniela, Ewald, Andreas H, Peters, Frank T, Maurer, Hans H

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Metabolism studies of the Kratom alkaloids mitraciliatine and isopaynantheine, diastereomers of the main alkaloids mitragynine and paynantheine, in rat and human urine using liquid... by Philipp, Anika A., Wissenbach, Dirk K., Weber, Armin A., Zapp, Josef, Maurer, Hans H.

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Towards a universal LC-MS screening procedure - can an LIT LC-MSn screening approach and reference library be used on a quadrupole-LIT hybrid instrument? by Wissenbach, Dirk K., Meyer, Markus R., Weber, Armin A., Remane, Daniela, Ewald, Andreas H., Peters, Frank T., Maurer, Hans H.

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