Phytoremediation Assessment of in Zinc-Contaminated Oxisols: Tolerance and Accumulation Dynamics.

This study assessed the phytoremediation potential of grown in Oxisol contaminated with varying zinc concentrations. was cultivated in soil with Zn levels from 0 to 1920 mg kg. Growth parameters, Zn concentrations in plant parts, bioaccumulation, and translocation factors were measured.

Tolerance of Mentha crispa L. (garden mint) cultivated in cadmium-contaminated oxisol.

The tolerance of Mentha crispa L. (garden mint) cultivated in cadmium-contaminated oxisol for 120 days was analyzed using plant growth variables such as height, the number of leaves and shoots in different Cd exposure periods, as well as assessing the metal concentration absorbed and accumulated in the plant parts (root, stem, and leaves). The maximum adsorption capacity was estimated at 9220 mg kg and used as a reference to establish the different Cd concentrations to be applied in the soil.

Determination of cadmium in coal using solid sampling graphite furnace high-resolution continuum source atomic absorption spectrometry.

This work describes the development of a method to determine cadmium in coal, in which iridium is used as a permanent chemical modifier and calibration is performed against aqueous standards by high-resolution continuum source atomic absorption spectrometry (HR-CS AAS). This new instrumental concept makes the whole spectral environment in the vicinity of the analytical line accessible, providing a lot more data than just the change in absorbance over time available from conventional instruments. The application of Ir (400 microg) as a permanent chemical modifier, thermally deposited on the pyrolytic graphite platform surface, allowed pyrolysis temperatures of 700 degrees C to be used, which was sufficiently high to significantly reduce the continuous background that occurred before the analyte signal at pyrolysis temperatures <700 degrees C.