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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...
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