Elementos-traço e sódio em suco de uva: aspectos nutricionais e toxicológicos

Eight trace elements were determined in 20 Brazilian brands of grape juice, distributed over the country. Highest measured concentrations (As: 0.016; Cd: 0.010; Cr: 0.060; Cu: 1.28; Ni: 0.032; Pb: 0.016; Sb: 0.0040 and Zn: 1.44 mg L-1) comply with Brazilian maximal tolerance levels for inorganic contaminants (As: 0.5; Cd: 0.5; Cr: 0.1; Cu: 30; Ni: 3; Pb: 0.4; Sb: 1 and Zn: 25 mg L-1). Determination of arsenic species has shown inorganic As(V) as predominant in most samples. Sodium concentrations, nowadays a major public health concern, were also measured, showing an average of 149 mg L-1. Analytical results for this element were much higher than label concentrations, showing the need for better quality control.

Om caffé och de inhemska wäxter, som pläga brukas i des ställe

Invocatio: I.J.N.

De pietate parentum et liberorum reciproca

Invocatio: Jehovah secundet.

De psychologia

Dedicatio: Samuel Wiraenus, Enevaldus Widbecchius, Andreas Hornaeus, Zacharias Hornaeus, Wilhelm Granberg, Jonas Hagelin.

Caracterização de escamas do peixe piau (Leporinus elongatus) e sua aplicação na remoção de Cu(II) de meio aquoso

Characterization of fish scales of Leporinus elongatus and their application in the removal of Cu(II) from aqueous solutions are described. It was observed that the scales are mainly formed by hydroxyapatite and type I collagen. Adsorption of Cu(II) was performed using batch experiments at 25 0C. The ANOVA statistical results have shown that the Langmuir model was successful applied to determine the maximum adsorption capacity of 2.686 x10-4 mol g-1 and the Langmuir equilibrium parameter (b) of 168.8 L mol-1. The Langmuir separation parameter, R L, has shown favorable adsorption of Cu(II) on the scales.

De dolo Gibeonitarum

Invocatio: [hepreaa].

Om aspens egenskaper och nytta, i den allmänna hushållningen

Invocatio: M.D.H.B.

Aphorismi

Invocatio: D.D.

Theoremata nonnulla mathematica

Painovuosi nimekkeestä.

Hypomnemata guaedam in Chronicon episcoporum Aboensium a Paulo Justen consignatum

Invocatio: I.N.J.C.

De summo bono

Dedicatio: Nicolaus Gyldenstålpe, Enevaldus Svenonius, Andreas Petraeus, Samuel Petraeus, Elias Johanson.

De Holmgardia

Invocatio: D.D.

Någre anmärckningar wid frukt-träns planterande i Finnland

Invocatio: Med den högtlogwade Treenighetens hielp.

De coelo ejusqu affectionibus

Arkit: A-B4.

Praecipuae caussae defectuum, quibus laborat historia Fennica

Invocatio: I.N.J.C.