A Optical Detection of Blood Gases

Although optical detection of blood gases is not routine at present, one can ej ect point-of-care Uood gas measurements to be used more frequently as the technology is 

Fluorescdn displays a cmn fiex pH-dependent equiliimmn and enusskm from Ae various ionic fonns figure 19.31). The lactone ftmn is usually found in organic solvents and is not formed in aqueous solutions above pH 5. Ouly Ae two high-pH anionic forms are fluorescent C gure 19.31). 

1933 are for fluoiescein linked to dextran, which was used to prevent the fluorescein from leaking out of the cells. 

Aoaom EnissioBspecttaofIffTS when eici(edat4S4 am. Re sedbon 

Anotho disadvantage of HPTS has been the rdatively short excitation wavelength, particularty hM the acid form, as it has been difficult to obtain wavdengtbs bdow450nm 

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