Abstract Cow’s milk is important in a healthy food intake because of its high calcium content. However, the contamination can be harmful to health. The acidity cow’s decreases with increase heavy metals concentration that poisonous body. This research aims investigate content (Cd, Pb, Zn, Cu, Cr) and minerals Ca contained fresh samples from two different locations, which are Padang city Panjang...

INTRODUCTION......... . ...... ................. .. ................. . .... . . ................. ......... 933 NOTIONS ABOUT RECOGNITION..... ................ . . .............. . . ..... . ......... . . ..... 934 THE HTH MOTIF... ..... ....... ................. .. . ................ .... . . .... ........... . .. . ..... .. 936 STRUCTURES.... . . . ..... .. ......... . . ................ ......

We performed in-situ XAS study of N2O decomposition over CuO/CeO2 catalysts. The Cu K-edge and Ce L3-edge XANES EXAFS analyses revealed the dynamic crucial role Cu2+/Cu+ Ce4+/Ce3+ ionic pairs during catalytic reaction. observed initial formation reduced Cu+ Ce3+ species activation in helium atmosphere at 400 °C, while concentration these decreased significantly steady-state nitrous oxide degrad...

The Kalmakyr deposit in Uzbekistan is one of the world’s largest gold-rich porphyry Cu deposits, and mineralization was proposed to be closely associated with emplacement latest intrusive phases, that is, granodiorite porphyry. However, it still unclear which features these ore-bearing intrusions are crucial for enormous metal enrichment how they correlate magmatic fertility. In this study, we ...

The thermal process of green amaranth leads to the partial or complete degradation chlorophyll pigments and loss colour due formation derivatives. This study aimed evaluate a stabilisation utilising metal ions obtain stable metal-chlorophyll derivative complexes. In this study, effects CuSO4 (0–240 ppm), ZnCl2 (0–1800 ppm) ions, pH (4–9), temperature (60–100 °C) on purees with constant time 15 ...

UNLABELLED Despite the great strides made in imaging breast cancer (BC) in humans, the current imaging modalities miss up to 30% of BC, do not distinguish malignant lesions from benign ones, and require histologic examinations for which invasive biopsy must be performed. Annually in the United States, approximately 5.6 million biopsies find benign lesions. More than 50% of human BCs overexpress...

In the present study, the authors determined concentrations of several elements (As, Cd, Co, Cu, Cr, Mn, Pb, Sb, Zn) in the brains and livers of 46 bald eagles (Haliaeetus leucocephalus) from two Great Lakes states, Michigan and Minnesota. To explore whether exposures are of neurological concern, the authors assessed their associations with neurochemical receptors (N-methyl-D-aspartate [NMDA] a...

Excess of copper (>2 mg/L) in drinking water is significantly toxic to human being and ecological environments. Various treatment technologies for copper removal from industrial and municipal waste water effluents has been investigated in past. In the present study batch biosorption studies were carried out for the adsorption of Cu by using natural cheap agrowaste such as peel of Citrus sinensi...

Gold and copper ions react with syn-phenyl-2-pyridylketoxime (PPKO) at 40 degrees C to form neutral chelates. Metal-PPKO chelates subsequently become preconcentrated on a minicolumn packed with a divinylbenzene-methacrylate copolymer. By switching the valve, these chelates are separated on the silica-based phenyl column and detected with a photometric detector. These processes occur automatical...