标题：COMPARATIVE ANALYSIS STUDY OF PLUMBUM (PB) ELECTROLYSIS SAMPLE BETWEEN LASERINDUCED BREAKDOWN SPECTROSCOPY (LIBS) AND CONVENTIONAL METHOD
其他标题：STUDI PERBANDINGAN ANALISIS UNSUR PLUMBUM (PB) DARI HASIL ELEKTROLISIS ANTARA METODE LASERINDUCED BREAKDOWN SPECTROSCOPY (LIBS) DENGAN METODE KONVENSIONAL
摘要：The aim of this research was to compare between a method of laser-induced breakdown spectroscopy (LIBS) and the conventional one to analyse of Plumbum (Pb) element resulted from electrolysis process. Electrolysis used copper (Cu) and carbon (C) as cathode and anode respectively. Plumbum element which was deposited on cathode was irradiated by Nd-YAG laser (model CFR 200, 1064nm) and its emission intensity of neutral Pb I 405.7 nm in the plasma was captured by HR 2500++ spectrometer and displayed in a form of intensity as a function of wavelength. The experiment result showed that the optimum condition parameters of electrolysis: laser energy, electric current and electrolysis time duration were 100 mJ, 5.28 mA and 15 minutes respectively. An application of these conditions was done to make calibration curve of Pb element in liquid sample from 300 ppm to 0.5 ppm and resulted a limit of detection (LOD) of 0.44 ppm. As a comparison of this method, the weighed the mass of the cathode (Cu) before and after electrolysis had been calculated by conventional method. The data showed that these two methods are proportional.
其他摘要：Penelitian ini bertujuan menganalisis unsur Pb hasil proses elektrolisis dengan metode alternatif laserinduced breakdown spectroscopy (LIBS) dan metode konvensional. Elektrolisis menggunakan tembaga (Cu) sebagai katoda dan karbon sebagai anoda. Unsur Pb y
