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Works by Josephs, Ralf D.

Results: 4

1

Structurally related peptide impurity identification and accurate quantification for synthetic oxytocin by liquid chromatography–high-resolution mass spectrometry.

Published in:

Analytical & Bioanalytical Chemistry, 2021, v. 413, n. 7, p. 1861, doi. 10.1007/s00216-021-03154-5

By:

Li, Ming;
Josephs, Ralf D.;
Daireaux, Adeline;
Choteau, Tiphaine;
Westwood, Steven;
Martos, Gustavo;
Wielgosz, Robert I.;
Li, Hongmei

Publication type:

Article

2

Identification and accurate quantification of structurally related peptide impurities in synthetic human C-peptide by liquid chromatography-high resolution mass spectrometry.

Published in:

Analytical & Bioanalytical Chemistry, 2018, v. 410, n. 20, p. 5059, doi. 10.1007/s00216-018-1155-y

By:

Li, Ming;
Josephs, Ralf D.;
Daireaux, Adeline;
Choteau, Tiphaine;
Westwood, Steven;
Wielgosz, Robert I.;
Li, Hongmei

Publication type:

Article

3

Concept paper on SI value assignment of purity - Model for the classification of peptide/protein purity determinations.

Published in:

Journal of Chemical Metrology, 2017, v. 11, n. 1, p. 1, doi. 10.25135/jcm.1.17.02.030

By:

Josephs, Ralf D.;
Stoppacher, Norbert;
Westwood, Steven;
Wielgosz, Robert I.;
Ming Li;
Quaglia, Milena;
Melanson, Jeremy;
Martos, Gustavo;
Prevoo, Desiree;
Liqing Wu;
Scapin, Sandra;
Senal, Merve Öztug;
Lingkai Wong;
Ji-Seon Jeong;
Wai Yi Chan, Kelly;
Arsene, Cristian G.;
Sang-Ryoul Park

Publication type:

Article

4

Determination of molar absorptivity coefficients for major type-B trichothecenes and certification of calibrators for deoxynivalenol and nivalenol.

Published in:

Analytical & Bioanalytical Chemistry, 2007, v. 388, n. 5/6, p. 1215, doi. 10.1007/s00216-007-1369-x

By:

Krska, Rudolf;
Schubert-Ullrich, Patricia;
Josephs, Ralf D.;
Emteborg, Håkan;
Buttinger, Gerhard;
Pettersson, Hans;
Van Egmond, Hans P.;
Schothorst, Ronald C.;
MacDonald, Susan;
Chan, Danny

Publication type:

Article