“…However, diode lasers have widespread use in various consumer products, so they are undergoing continual development and this limitation may not persist for long. Resonance line lasers have also been used as a simpler nontunable alternative to dye lasers, and Simeonsson et al (252) reported sensitivities for the determination of Tl and In that were comparable to those obtained with dye lasers. Some comparisons of different laser-pumped dye laser systems were published (253,254).…”