Detection and Analytical Capabilities for Trace Level of Carbon in High-Purity Metals by Laser-Induced Breakdown Spectroscopy with a Frequency Quintupled 213 nm Nd:YAG Laser

The laser-induced breakdown spectroscopy (libs) with a frequency quintupled 213 nm nd:yag laser was examined to the analysis of trace level of carbon (c) in high-purity metals and its detection and analytical capabilities were evaluated. though c signal in a wavelength of 247.9 nm,which showed the highest sensitivity of c,could be obtained from cd,ti,and zn ca. 7000 mg kg-1 c in fe could not be detected due to the interferences from a lot of fe spectra. alternative c signal in a wavelength of 193.1 nm could not be also detected from fe due to the insufficient laser output energy of the frequency quintupled 213 nm nd:yag laser. the depth analysis of c by libs was also demonstrated and the c in cd and zn was found to be contaminated in only surface area whereas the c in ti was distributed in bulk. from these results,the frequency quintupled 213 nm nd:yag laser,which was adopted widely as a commercial laser ablation (la) system coupled with inductively coupled plasma mass spectrometry (icpms) for trace element analysis in solid materials,could be used for c analysis to achieve simultaneous measurements for both c and trace elements in metals by libs and la-icpms,respectively. © 2017 masaki ohata and toshiki nakae.