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An isotope dilution-liquid chromatography-tandem mass spectrometry (ID-LC-MS/MS)-based candidate reference measurement procedure (RMP) for the quantification of gabapentin in human serum and plasma.
Salzmann L, Wild J, Singh N, Schierscher T, Liesch F, Bauland F, Geistanger A, Risch L, Geletneky C, Seger C, Taibon J. Salzmann L, et al. Among authors: singh n. Clin Chem Lab Med. 2023 Jan 23;61(11):1955-1966. doi: 10.1515/cclm-2022-0998. Print 2023 Oct 26. Clin Chem Lab Med. 2023. PMID: 36689915 Free article.
An isotope dilution LC-MS/MS based candidate reference method for the quantification of cyclosporine A, tacrolimus, sirolimus and everolimus in human whole blood.
Taibon J, van Rooij M, Schmid R, Singh N, Albrecht E, Anne Wright J, Geletneky C, Schuster C, Mörlein S, Vogeser M, Seger C, Pongratz S, Kobold U. Taibon J, et al. Among authors: singh n. Clin Biochem. 2020 Aug;82:73-84. doi: 10.1016/j.clinbiochem.2019.11.006. Epub 2019 Nov 23. Clin Biochem. 2020. PMID: 31770523 Free article.
Collaborative Study to Validate Purity Determination by 1H Quantitative NMR Spectroscopy by Using Internal Calibration Methodology.
Miura T, Sugimoto N, Bhavaraju S, Yamazaki T, Nishizaki Y, Liu Y, Bzhelyansky A, Amezcua C, Ray J, Zailer E, Diehl B, Gallo V, Todisco S, Ofuji K, Fujita K, Higano T, Geletneky C, Hausler T, Singh N, Yamamoto K, Kato T, Sawa R, Watanabe R, Iwamoto Y, Goda Y. Miura T, et al. Among authors: singh n. Chem Pharm Bull (Tokyo). 2020 Sep 1;68(9):868-878. doi: 10.1248/cpb.c20-00336. Epub 2020 Jun 19. Chem Pharm Bull (Tokyo). 2020. PMID: 32565492 Free article.
An isotope dilution LC-MS/MS-based candidate reference method for the quantification of androstenedione in human serum and plasma.
Gradl K, Taibon J, Singh N, Albrecht E, Geistanger A, Pongratz S, Hutzler S, Mayer M, Kleinschmidt C, Geletneky C, Hofmann V, Köppl D, Rauh M, Kobold U. Gradl K, et al. Among authors: singh n. Clin Mass Spectrom. 2020 Jan 23;16:1-10. doi: 10.1016/j.clinms.2020.01.003. eCollection 2020 Apr. Clin Mass Spectrom. 2020. PMID: 34820514 Free PMC article.
An isotope dilution-liquid chromatography-tandem mass spectrometry (ID-LC-MS/MS)-based candidate reference measurement procedure (RMP) for the quantification of lamotrigine in human serum and plasma.
Salzmann L, Spescha T, Singh N, Schierscher T, Bachmann M, Bauland F, Geistanger A, Risch L, Geletneky C, Seger C, Taibon J. Salzmann L, et al. Among authors: singh n. Clin Chem Lab Med. 2023 Feb 14;61(11):1930-1941. doi: 10.1515/cclm-2022-0997. Print 2023 Oct 26. Clin Chem Lab Med. 2023. PMID: 36785916 Free article.
An isotope dilution-liquid chromatography-tandem mass spectrometry (ID-LC-MS/MS)-based candidate reference measurement procedure (RMP) for the quantification of methotrexate in human serum and plasma.
Engel A, Ruhe L, Singh N, Wright JA, Liesch F, Bauland F, Ostermann AI, Sumalowitsch T, Schweinsberg VJT, Geistanger A, Hegel JK, Geletneky C, Taibon J. Engel A, et al. Among authors: singh n. Clin Chem Lab Med. 2023 Feb 15;61(11):1917-1929. doi: 10.1515/cclm-2022-1001. Print 2023 Oct 26. Clin Chem Lab Med. 2023. PMID: 36788118 Free article.
An isotope dilution-liquid chromatography-tandem mass spectrometry (ID-LC-MS/MS)-based candidate reference measurement procedure (RMP) for the quantification of aldosterone in human serum and plasma.
Taibon J, Santner T, Singh N, Ibrahim SC, Babitzki G, Köppl D, Gaudl A, Geistanger A, Ceglarek U, Rauh M, Geletneky C. Taibon J, et al. Among authors: singh n. Clin Chem Lab Med. 2023 Mar 24;61(11):1902-1916. doi: 10.1515/cclm-2022-0996. Print 2023 Oct 26. Clin Chem Lab Med. 2023. PMID: 36952682 Free article.
An isotope dilution-liquid chromatography-tandem mass spectrometry (ID-LC-MS/MS)-based candidate reference measurement procedure for the quantification of levetiracetam in human serum and plasma.
Kobel A, Schierscher T, Singh N, Salzmann L, Liesch F, Bauland F, Geistanger A, Risch L, Geletneky C, Seger C, Taibon J. Kobel A, et al. Among authors: singh n. Clin Chem Lab Med. 2023 Apr 4;61(11):1967-1977. doi: 10.1515/cclm-2022-1038. Print 2023 Oct 26. Clin Chem Lab Med. 2023. PMID: 37011038 Free article.
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