Spectrophotometric Measurements and Instruments

Simulation and Parameter Estimation of Spectrophotometric Instruments

Physical Methods, Instruments and Measurements

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Spectrophotometric measurements of serum nickel.

An ultraviolet spectrophotometric procedure has been developed for the measurement of serum nickel. Samples of serum are lyophilized and the dry residues are subjected to acid digestion. Nickel is separated from interfering elements by chloroform extraction of nickel dimethylglyoximate at alkaline pH. Nickel is converted to the diethyldithiocarbamate complex and is extracted with isoamyl alcoho...

Viscometric and spectrophotometric measurements of hemoglobin S polymerization kinetics.

The rates of polymerization and depolymerization of identical concentrated deoxygenated hemoglobin S (HbS) solutions following a rapid temperature change were examined by several methods. Two of these methods measured viscosity changes in either gently agitated (AGT) or nonagitated (NAGT) samples. The third method utilized a change in turbidity at 735 nm (SDT). By all three methods, a delay per...

Sensors and instruments for oceanic dissolved carbon measurements

Highly accurate and precise measurements of marine carbon components are required in the study of the marine carbon cycle, particularly when investigating the causes for its variability from seasonal to interannual timescales. This is especially true in the investigation of the consequences of anthropogenic influences. The analysis of any marine carbon component requires elaborate instrumentati...