Determination of Disobutyl ketone for occupational disease prevention standard

  Objective   To establish solvent desorption gas chromatog raphic method for deter mination of Diisobutyl ketone in workplace.

  Methods   This method was based on "Standar dization of methods for deter mination of toxic substances in workplace air".

  Results   The calibration curve showed good linearity in the range of 0~2500μg/ml.The detection limit were 0.40 μg/ml and the relative standard derivations(RSD)were between 0.81%~1.35% at different levels.The average desorption efficiencies were 94.57%~97.01%.A bsorption efficiencies were 98.93%~100%.The breakthrough volume of 100mg active carbon was 6.3mg.

  Conclusion   This method is meet the requirement of "Standardization of methods for determination of toxic substances in workplace air".It is feasible for determination of Diisobutyl ketone in workplace air.