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Pilot study on peptide purity—synthetic oxytocin
Metrologia ( IF 2.1 ) Pub Date : 2020-08-02 , DOI: 10.1088/0026-1394/57/1a/08016 R D Josephs 1 , M Li 1, 2 , A Daireaux 1 , T Choteau 1 , G Martos 1 , S Westwood 1 , R I Wielgosz 1 , H Li 2 , S Wang 2 , L Feng 2 , T Huang 2 , M Pan 2 , T Zhang 2 , N Gonzalez-Rojano 3 , M Balderas-Escamilla 3 , A Perez-Castorena 3 , M Perez-Urquiza 3 , I Ün, 4 , M Bilsel 4
Metrologia ( IF 2.1 ) Pub Date : 2020-08-02 , DOI: 10.1088/0026-1394/57/1a/08016 R D Josephs 1 , M Li 1, 2 , A Daireaux 1 , T Choteau 1 , G Martos 1 , S Westwood 1 , R I Wielgosz 1 , H Li 2 , S Wang 2 , L Feng 2 , T Huang 2 , M Pan 2 , T Zhang 2 , N Gonzalez-Rojano 3 , M Balderas-Escamilla 3 , A Perez-Castorena 3 , M Perez-Urquiza 3 , I Ün, 4 , M Bilsel 4
Affiliation
Under the auspices of the Protein Analysis Working Group (PAWG) of the Comité Consultatif pour la Quantité de Matière (CCQM) a pilot study, CCQM-P55.2.b, was coordinated by the Bureau International des Poids et Mesures (BIPM) and the Chinese National Institute of Metrology (NIM). Three Metrology Institutes or Designated Institutes and the BIPM participated. Participants were required to assign the mass fraction of oxytocin (OXT) present as the main component in the comparison sample for CCQM-P55.2.b. The comparison samples were prepared from synthetic OXT purchased from a commercial supplier and used as provided without further treatment or purification. OXT was selected to be representative of the performance of a laboratory's measurement capability for the purity assignment of chemically synthesized peptides of known sequence, with one cross-link and up to 5 kDa. It was anticipated to provide an analytical measurement challenge representative for the value-assignment of...
更新日期：2020-08-03
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