J. Braz. Chem. Soc. vol.14 número3

To validate the best analytical procedure proposed involving digestion using a wet method and the determination of minerals by FAAS in maize flour samples, the following

assayed and most patisfactory results were oþtained for g0 minutes at BTC. For other lectins, although Sivturg similar titers for IgM antibodies, much weaker

Determination of phosphate, phenols, nitrite, sulphide and total iron in waters by the proposed method and reference procedures (flow systems with continuous reagent addition.

In the next section will be commented the assays carried out involving parameters, such as, sample and reagent volumes, reagent concentration, pH of the carrier solution, reaction

The features shown in Table 6 correspond to sample consumption per determination of 0.470 mL of water sample and to overall reagent consumption per determination of: 46 µg CAS;

While the sample solution flowed through the flow cell, the Zn(II) ions reacted with the immobilized chromogenic reagent (TAN) on the solid phase (C 18 ) that was packed into

Transient signals to increasing concentrations of the dyes red, green and blue, obtained by the flow analysis system and detection by webcam and spectrophotometer... The

These variables include the pumping flow rate, time intervals for switching on/off the solenoid valves used to load the sampling loop with sample and reagent solution aliquots,