Data/hora: 21/06/2024 03:35:39

Biblioteca(s): | Embrapa Pecuária Sudeste.
Data corrente: | 25/11/2015
Data da última atualização: | 15/03/2023
Autoria: | AMARAL, C. D. B.; AMAIS, R. S.; FIALHO, L. L.; SCHIAVO, D.; NOGUEIRA, A. R. de A.; NÓBREGA, J. A.
Afiliação: | CLARICE D. B. AMARAL, UNIVERSIDADE FEDERAL DE SÃO CARLOS/SÃO CARLOS, SP; RENATA S. AMAIS, C CENTER FOR NUCLEAR ENERGY IN AGRICULTURE, UNIVERSITY OF SÃO PAULO, PIRACICABA, SP; LUCIMAR L. FIALHO, GROUP OF APPLIED INSTRUMENTAL ANALYSIS, DEPARTMENT OF CHEMISTRY, FEDERAL UNIVERSITY OF SÃO CARLOS; DANIELA SCHIAVO, Agilent Technologies Brazil; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; JOAQUIM A. NÓBREGA, GROUP OF APPLIED INSTRUMENTAL ANALYSIS, DEPARTMENT OF CHEMISTRY, FEDERAL UNIVERSITY OF SÃO CARLOS.
Título: | Determination of carbon in digested samples and amino acids by inductively coupled plasma tandem mass spectrometry.
Ano de publicação: | 2015
Fonte/Imprenta: | Microchemical Journal, v. 122, n. 1, p. 29-32, 2015.
DOI: | 10.1016/j.microc.2015.04.007
Idioma: | Inglês
Conteúdo: | Inductively coupled plasma mass spectrometer with a triple quadrupole (ICP-MS/MS) was employed to determine carbon from different sources such as plant digests, amino acids and peptides. Adequate precision, accuracy and sensitivity were obtained when using either single quadrupole or mass shift mode. Recoveries for carbon determination in plant digests ranged from 96 to 100%. Limits of detection were 0.42 and 0.17 mg L? 1 for 12C+ and 12C16O+, respectively, with calibration curves generated by using solutions prepared with oxalic acid. The determination of carbon and sulfur in amino acids and peptides showed that accuracy was better when measuring in O2 reaction mode. Additionally, C and S were simultaneously determined in cystine and glutathione by ICP-MS/MS mass-shift mode. The determination of carbon simultaneously with trace elements and target elements by ICP-MS makes this concept quite promising. Results demonstrated the potential of ICP-MS/MS for carbon determination.
Palavras-Chave: | Amino acids Mass; Carbon determination; ICP MS MS; Non metal determination; Shift mode.
Categoria do assunto: | W Química e Física
Registro original: | Embrapa Pecuária Sudeste (CPPSE)
Exemplares: | CPPSE - (23149-1) - UPC - AP - DD - PROCI-2015.00088 - AMA - 2015.00088 - DIS