TY - JOUR JF - opsi JO - ICOP & ICPET _ INPC _ ICOFS VL - 24 IS - 0 PY - 2018 Y1 - 2018/3/01 TI - Identification and discrimination bacterias of Gram positive and negative using Laser-induced break down spectroscopy (LIBS) TT - شناسایی و تفکیک باکترهای گرم مثبت و منفی با استفاده از طیف سنجی فروشکست القایی لیزری N2 - Bacillus subtilis and Escherichia coli bacteria have been analyzed by Laser-induced breakdown spectroscopy. Twenty-two atomic and ionic emission lines in the LIBS spectrum, which was dominated by inorganic elements such as calcium, magnesium and sodium, were used to identify and classify the bacteria of Gram positive and negative. A discriminant function analysis was used to discriminate between Bacillus subtilis and Escherichia coli. Our results show well discrimination .so, it shows the ability of LIBS in classification of bacteria and it feasibility in medical applications. SP - 901 EP - 904 AU - Shakouri Moghaddam, Akram AU - Shorsheyni, seyedeh Zahra AU - Shirvani Mahdavi, Hamid Reza AU - Khodabakhshi, Zahra AD - College of Physical Chemistry, Alzahra University KW - Discriminant function analysis KW - Bacteria identification KW - Laser-induced break down spectroscopy UR - http://opsi.ir/article-1-1427-en.html ER -