A 20 mg/L cadmium stock solution was prepared from cadmium nitrate
The first modification involved using commercially available cadmium salts, in particular cadmium acetate, cadmium chloride, cadmium nitrate, and cadmium sulfate.
The emission [[lambda].sub.MAX] values range from 599 nm (cadmium acetate) to 617 nm (cadmium nitrate).
Biomass were put in contact with cadmium nitrate
solution in concentrations that varies from 0 to 150 mg [1.sup.-] 1.
Determination of glutathione concentration after its interaction with cadmium nitrate
tetrahydrate by using Ellman's modified method.
In brief, 0.1 M lead nitrate or cadmium nitrate
in methanol was used as cation source and 0.1 M sodium sulfide in methanol as anion source.
Seven weeks before planting, three concentrations [e.g., 0, 250, 500 mg Cd/kg dry soil] of Cd in the form of cadmium nitrate
were mixed and equilibrated with the soil [2:1; v: v mixture of silt loam soil (pH 6.9) and peat].
The brain sections were rinsed with distilled [H.sub.2]O, placed into dishes containing the preimpregnating solution (silver nitrate [AgN[O.sub.3]], distilled [H.sub.2]O, D,L-alanine, copper nitrate [[Cu(N[O.sub.3]).sub.2]], cadmium nitrate
[[Cd(N[O.sub.3]).sub.2]], lanthanum nitrate [[La(N[O.sub.3]).sub.2]], neutral red, pyridine triethanolamine, isopropanol), heated in a microwave oven (45-50[degrees]C) for 50 min, and cooled at room temperature for 3 hr.
After making these, the researchers added cadmium nitrate
to the mix and then pumped in hydrogen sulfide gas.
Seeds were germinated in concentrations of 0, 250, 500, and 1000 ppm of each metal; lead nitrate and cadmium nitrate
. Germination was significantly higher in wheat and mustard grown in Pb as compared to the two cultivars of fescue.