Determination of diborane in the air of workplace by ICP-AES / 中华劳动卫生职业病杂志

ABSTRACT

<p><b>OBJECTIVE</b>A sampling method was established to collect diborane in the air of workplace and an ICP-AES method was developed to determine the Boron in desorbed solution.</p><p><b>METHOD</b>Diborane in the air of workplace was collected by solid sorbent tube filled with oxidant impregnated activated carbon. The adsorbed diborane was desorbed into 3% H2O2 aqueous, and then the desorbed Boron was determined by ICP-AES.</p><p><b>RESULTS</b>The sampling efficiency of this method was 99.6% with the desorption efficiency of diborane with 5.660 microg and 56.6 microg spiked were 90.9% and 99.5%, respectively. Both the intra-and inter-precision RSD were less than 8%. The standard curve of this method ranged from 0.1 to 10.0 microg/ml (Boron), and the LOD and LOQ were 0.011 mg/m3 and 0.035 mg/m3 (15L samples) respectively.</p><p><b>CONCLUSION</b>The method established was suitable for diborane sampling and determination in the air of workplace.</p>