Determination of boron in titanium alloy by inductively coupled plasma atomic emission spectrometry

A rapid determination method of boron in titanium alloy by inductively coupled plasma atomic emission spectrometry(ICP-AES) was proposed.The instrumental parameters were optimized to obtain the optimal analytical conditions.The samples were dissolved in sulfuric acid and nitric acid.The solution was directly determined by ICP-AES using B 208.957 nm as the analytical line for boron.The spectral interference caused by matrix and coexisting elements were eliminated by matrix matching and two-point correction of background emission site.The detection limit of boron was 0.000 72 μg/mL.One titanium alloy sample was determined for 10 times.The relative standard deviation(RSD) was less than 1 %,and the recoveries of standard addition were 97 %-130 %.The determination results of this method were consistent with those obtained by spectrophotometry.