Determination of Fe, Cu and Zn in sugar-cane spirits commercialized in Southeastern Brazil by TXRF

Advances in assessing the elemental composition of distilled spirits using atomic spectrometry

“…Other spectrochemical techniques are used, including total reflection X-ray fluorescence spectrometry (TRXF) for measurements of Cr [19], Cu [13,19,55], Fe [13,19,55], Mn [19], Ni [19] and Zn [13,19,55] and UV-VIS spectrophotometry for measurements of Cu [7,56]. Occasionally, flow-injection hydride-generation atomic absorption spectrometry with atomization in heated quartz tubes (FI-HG-HQT-AAS) is used for determining As [24,25,57], Hg [58] and Pb [48,51].…”

“…In addition, they can initially be ashed and the resulting solutions dried prior to measurements [55].…”

“…External calibration with the use of ISs is also practiced. Different elements play a role of ISs (i.e., Sb for As measurements by GF-AAS [16], Bi for Cu and Pb measurements in GF-AAS [6], Rh for As, Cu and Pb measurements by ICP-MS [1] or In for several different elements also determined by ICP-MS [23], or V [13], Mo [19] or Ga [55] in measurements by TXRF. This type of standardization is also used in fast sequential FAAS measurements applying Ag, Bi, Co and Ni as ISs [36].…”

Overcoming absorption effects in the determination of light elements in beverages by total‐reflection X‐ray spectrometry

“…In the last years, the number of TXRF publications related to the analysis of food is gradually increasing. 5 There are many research articles considering the TXRF analysis of beverages, e.g., wine, [6][7][8][9][10][11][12][13][14][15] beer, 16,17 spirits, [18][19][20][21] soft drinks, [22][23][24][25][26] and juices. 27,28 With regards to the state of the art in the analysis of beverages by TXRF, a couple of issues should be noted.…”

Alinhamento, programação e comissionamento de um sistema de fluorescência de raios X em regime de reflexão total (TXRF) sob vácuo e automático para aplicação em pesquisas agropecuárias e ambientais

“…Mais de 30 artigos científicos foram produzidos a partir desse sistema, que também contribuiu na formação de ao menos 15 mestres e doutores Os limites de detecção para este equipamento estavam entre 35 e 8 μg L -1 para os elementos V, Cr, Mn, Fe, Co, Ni, Cu, Zn e As. (CUNHA E SILVA et al, 2004). A detecção era feita por um detector semicondutor Si(Li) -fabricado pela Canberra -que utilizava nitrogênio líquido com área ativa de 80 mm².…”