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A highly sensitive Laser Induced Break down Sensor has been developed using a fourth harmonic Nd: YAG laser and a spectrograph with an ICCD camera to detect carcinogenic substances in cosmetic products especially hair dyes and Kohl available on the local market with in Saudi Arabia. For the hair dye, chromium (Cr) was detected using a spectral marker line of 427.5 nm and concentrations in the range...
Laser induced breakdown spectroscopy (LIBS), is an atomic emission based analytical technique, where laser induced plasma is analyzed after appropriate time delay allowed for plasma cooling. The selectivity and the sensitivity of the system immensely depend on the plasma parameters and hence understanding the formation and evolution of the laser induced plasma is very vital in the optimization of...
A laser-induced breakdown spectrometer has been developed and optimized for the measurement of trace content of metals in Zamzam and in water processed by a Leveluck water machine. Zamzam water was frozen into ice using liquid nitrogen to overcome the LIBS diffi culties, specifi c to the detection of LIBS signal in liquid samples. The laser-produced plasma from the frozen ice sample was then analyzed...
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