A procedure using slurry sampling for the determination of manganese in corn flour by ET AAS

2011 ◽  
Vol 3 (11) ◽  
pp. 2625 ◽  
Author(s):  
Douglas G. daSilva ◽  
Geraldo D. Matos ◽  
Ana M. P. dos Santos ◽  
Raigenis da Paz Fiuza ◽  
Robson M. de Jesus
Keyword(s):  
Slurry Sampling ◽  
Corn Flour

Development of a Purification Method for Simultaneous Determination of Deoxynivalenol and Its Acetylated and Glycosylated Derivatives in Corn Grits and Corn Flour by Liquid Chromatography–Tandem Mass Spectrometry

2012 ◽  
Vol 75 (7) ◽  
pp. 1355-1358 ◽  
Author(s):  
TOMOYA YOSHINARI ◽  
TAKAHIRO OHNISHI ◽  
TOMOYUKI KADOTA ◽  
YOSHIKO SUGITA-KONISHI
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Tandem Mass Spectrometry ◽  
Simultaneous Determination ◽  
Tandem Mass ◽  
Corn Flour ◽  
Purification Method ◽  
Chromatography Tandem Mass Spectrometry ◽  
Liquid Chromatography Tandem Mass

We developed a purification method based on liquid chromatography–tandem mass spectrometry for the identification of deoxynivalenol (DON), its acetylated derivatives (3-acetyl-deoxynivalenol and 15-acetyl-deoxynivalenol), and a glycosylated derivative (deoxynivalenol-3-glucoside [D3G]) in corn-based products. The analytes were extracted from samples with acetonitrile-water (85:15, vol/vol) and then purified with multifunctional columns. Evaluation of five kinds of multifunctional columns revealed that DON and its acetylated derivatives were recovered well (96 to 120%) by all columns, but D3G was recovered adequately (93.5%) by only one column, InertSep VRA-3. Samples of corn grits and corn flour were analyzed using the purification method with InertSep VRA-3. DON, D3G, and 15-acetyl-deoxynivalenol were the major contaminants in the samples harvested in 2009, but only DON was detected in the samples harvested in 2010. These results suggest that the purification method using InertSep VRA-3 is effective for identification of DON and its derivatives in corn-based products.

Determination of arsenic in mussels by slurry sampling and electrothermal atomic absorption spectrometry (ETAAS)

1994 ◽  
Vol 117 (1-2) ◽  
pp. 49-64 ◽  
Author(s):  
Pilar Bermejo-Barrera ◽  
Maria Jos� Lorenzo-Alonso ◽  
Manuel Aboal-Somoza ◽  
Adela Bermejo-Barrera
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Electrothermal Atomic Absorption Spectrometry ◽  
Absorption Spectrometry ◽  
Slurry Sampling

Determination of copper in powdered chocolate samples by slurry-sampling flame atomic-absorption spectrometry

2005 ◽  
Vol 382 (4) ◽  
pp. 1099-1102 ◽  
Author(s):  
Walter N. L. dos Santos ◽  
Erik G. P. da Silva ◽  
Marcelo S. Fernandes ◽  
Rennan G. O. Araujo ◽  
Antônio C. S. Costa ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flame Atomic Absorption Spectrometry ◽  
Absorption Spectrometry ◽  
Slurry Sampling ◽  
Flame Atomic Absorption ◽  
Determination Of Copper
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