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Paralytic shellfish toxins (PSTs) are produced by marine and freshwater microalgae and accumulate in shellfish including mussels, oysters, and scallops, causing possible fatalities when inadvertently consumed. Monitoring of PST content of shellfish is therefore important for food safety, with currently approved methods based on HPLC, using pre‐ or postcolumn oxidation for fluorescence detection (HPLC‐FLD)...
A novel instrument was developed using a multi-wavelength pulsed LED array with in-column optic-fiber induced fluorescence detection by capillary electrophoresis. The light from 2 different wavelength LEDs (450nm and 480nm) was pulsed for short intervals at high intensity. The beam from each LED was collimated and reshaped with the gradient index (GRIN) lens group to achieve a highly effective coupling...
A multi‐wavelength LED array was used as an excitation source for in‐column fiber‐optic LED‐induced fluorescence for CE. The light source consisted of a multi‐wavelength LED array consisting of three different LEDs (430, 450 and 480 nm), a focusing lens and a gradient index lens group. The LED beam was collimated and reshaped with the gradient index lens group for coupling the LED light source into...
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