Ultraviolet micro spectrophotometry

Ultraviolet Micro Spectrophotometry as an Aid to the Identification of Pesticide Residues... 

Liu and coworkers have been also designed and successfully realized a novel micro-electro-mechanical-systems (MEMS) based polymer drug dehvery microsystem. The device consists of an array of metallic contacts, able to create an uniform electric field. In particular, a hydrogel polymer matrix loaded with hematoxylin dye, as model of hydrophilic drug, has been smdied. The dehvery microsystem operated at normal body temperature (37 °C) under an applied voltage of 20 V. The release rate and dose were accurately controlled. The polymer responds to the electrical stimulus by shrinking and releases the hematoxylin dye into solution. The release of hematoxylin in the media was monitored using ultraviolet-visible spectrophotometry. 

Adenine, Enzymic Micro Determination, by Ultraviolet Spectrophotometry... 

Spectrophotometry, Ultraviolet Enzymic Micro Determination of Uric Acid, Hypoxanthine,... 

Ultraviolet Spectrophotometry, Enzyme Micro Determinations of Uric Acid,... 

Organic compounds that possess an ultraviolet- or visible-absorbing chromophore obey the Beer Lambert or Beer-Bouguer law of spectrophotometry. In what is generally termed molecular absorption spectrophotometry, a cuvette (in the case of stand-alone UV-vis spectrophotometers) or a micro-flow cell (in the case of flow through HPLC UV-vis detectors). We now proceed to derive the fundamental equation that relates absorbance as measured on an UV-vis HPLC detector to concentration because this relationship is important to the practice... 

Activation Analysis of Biological Trace Elements (Leddicotte). Adenine, Enzymic Micro Determination, by Ultraviolet Spectrophotometry (Plesner and Kalckar). 

Spectrophotometry, Ultraviolet, Enzymic Micro Determinations of Uric Acid, Hypoxanihine, Xanthine, Adenine, and Xanthopterine by (Plesner and Kalckar). 

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