A method is described for the determination of morpholine (110918) in air through adsorption on silica gel, desorption with 0.05M sulfuric-acid and gas chromatography. Data are given on the principle, range and sensitivity, interferences, precision, accuracy, advantages and disadvantages of the method. Also described are the apparatus, reagent and procedure used; analysis of samples; determination of desorption efficiency; calibration and standards, and calculations.
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