Determination of acid-soluble boron in low alloy steel by inductively coupled plasma atomic emission spectrometry

The instrumental parameters and analytical lines were optimized.The acidity for decomposition,the interference of matrix element and the internal standard element of acid-soluble boron were investigated.Consequently,the determination of acid-soluble boron in low alloy steel by inductively coupled plasma atomic emission spectrometry was treated.The results showed that,trace acid-soluble boron in low alloy steel could be determined under the following conditions:249.677nm was used as the analytical line for boron;the sample was dissolved using sulfuric acid(1+6);the beryllium and scandium mixed standard solution was used as double internal standard;the matrix matching of iron was used.The detection limit of method was 0.030μg/mL.The relative standard deviation(RSD)was less than 10%.The recoveries of standard addition were between 99% and 101%.