Exact(6)
Main Outcome Measures: Medical Research Council scale of force; sensory functions of anatomic areas of nerves; SNAP and CMAP amplitudes; CT area, mean absorption, standard deviation (SD) from mean absorption, and root mean square SD of absorption.
All other metal stocks were atomic absorption standard solutions.
iAsIII was obtained as an arsenic atomic absorption standard solution from Aldrich (Milwaukee, WI) and used as a stock solution with a concentration of 13.3 mM.
Mg, Ca, V, Zn, Cu, Na, and K were determined by application of a calibration curve using working standard solutions, which were obtained from a stock atomic absorption standard solutions containing 1000 μg Mg, Ca, V, Zn, Cu, Na, and K/mL by dilution with 5% (v/v) HNO3.
Stocks of V, Mg, Zn, and Cu (Inorganic Ventures, Christiansburg, USA) and a stock of Ca (Spectracer, UK) atomic absorption standard solutions as well as a multielement standard solution for Na and K (Sigma-Aldrich) were used in the element analysis by the Atomic Absorption Spectrometry (AAS) method.
To determine the affinity of YjiA for Ni II), 250 nM YjiA in protein buffer was titrated with a nickel atomic absorption standard solution and the absorbance at 340 nm was monitored using a 10 cm path length cuvette and a GBC Cintra 404 spectrophotometer.
Similar(54)
Sample solutions were made from cobalt (995 μg/l, Aldrich) and nickel (1 g/l, Fluka, Gillingham, UK) atomic absorption standards with dimethylglyoxime (99+%, Acros, Loughborough, UK) and sodium nitrite (97+%, Aldrich).
It was clearly seen that the yields of SS-capped AgNPs synthesized from 10 mg/mL SS + 1 mM AgNO3 were the lowest (0.04 mM) while those synthesized from 10 mg/mL SS + 10 mM AgNO3 were the highest (0.93 mM) according to the absorption intensity and AgNP concentration standard curve.
The retention time of the radiochromatography peak of [11C]oseltamivir was identified by the optical absorption of standard oseltamivir at a detection wavelength of 254 nm.
Arsenic (III) and arsenic (V) AAS (Atomic Absorption Spectrometry) standards were obtained from Qualigens (Shanon Co. Clare, Ireland).
The recorded spectra were corrected for the energy-dependent incident photon intensity as well as for the self-absorption effects and normalized to the tabulated standard absorption cross sections in the energy range of 8000 8400 eV for the Ni K-edge.
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