ANALYTICAL METHOD FOR DETERMINING ORGANOMETALLIC COMPOUNDS OF MERCURY, TIN AND LEAD IN SOIL SAMPLES

摘要

The invention relates to an analytical method for determining organometallic compounds of mercury, tin and lead in ultra-traces. According to the invention, the method consists of ultrasonic extraction for 10...30 min, at a temperature of 30...80°C, coupled with headspace extraction techniques, at an incubation temperature of 40...65°C and solid-phase microextraction, followed by gas-chromatographic analysis coupled with mass spectrometry, by which the nine organometallic analytes of mercury, tin and lead are determined.