Determination of dimethyl ether in workplace air with gas chromatography / 中华劳动卫生职业病杂志

ABSTRACT

<p><b>OBJECTIVE</b>To develop determination of dimethyl ether in workplace air by GC.</p><p><b>METHODS</b>Dimethyl ether were sampled with solvent desorption active carbon tube. The sampled carbon tube were desorbed by carbon tetrachloride, Elite-WAX column was used with temperature programmed from 40 to 90 degrees C, and the carrier gas programmed from 1.4 - 2.5 ml/min.</p><p><b>RESULTS</b>There was a good linearity (r = 0.9999) over the concentration of 0-63.91 microg/L, detection limit can reach 0.75 microg/ml.</p><p><b>CONCLUSION</b>This method proved to be accurate and sensitive, to meet the determination of the dimethyl ether in workplace air.</p>