An LC×LC–HRMS method was developed for the characterization of phenolic compounds in cannabis, with flavoalkaloids identified for the first time.

Day 2 of HPLC 2025 on Tuesday, June 17, 2025, ended with an illuminating session on pharmaceutical separations chaired by Debby Mangelings and Todd Maloney.

Abstract: High-performance InGaN light-emitting diodes consisting of 120 side-by-side and individually ... The emission wavelengths demonstrated range from ultraviolet (UV) (370 nm) to blue (470 nm) ...

organic light-emitting diode (OLED) display ... it would be a perfect candidate for an LCD backlight. A color filter array is another effective approach to enhance the color gamut of an OLED.

Semiconductor laser diodes (SLDs) are often packaged with a photodiode. The output current from this photodiode can be monitored to regulate the output power intensity of the laser diode. SLDs, ...

Generally, white LEDs are just UV or 405 nm (‘blue’) LEDs that have a phosphor coating on top that converts the emitted wavelength into broad band visible (white) or another specific ...

Abstract: A numerical model for calculating the emission characteristics of diode laser arrays and broad-area devices operating well above threshold is discussed. This model uses the beam propagation ...

Furthermore, the accuracy and reproducibility of these gas sensors is not sufficient for analytical applications. The use of UV absorption photometry has therefore become established for this ...