Measurement method for semi-volatile organic matter based on gas chromatography-mass spectrometry

Abstract

The invention relates to the field of an environment monitoring technology and method, and in particular to measurement method for a semi-volatile organic matter based on a gas chromatography-mass spectrometry. The method comprises the following steps of step (1), preparation of a reagent and a material; step (2), preparation of instrument and equipment; step (3) preparation of a sample: taking asoil / sediment / waste matrix sample as a representative in an experiment, after the sample is collected, sealing and storing the sample in a clean brown ground-glass stoppered flask, keeping the samplein a dark place below 4 degrees centigrade; and step (4) analysis. By use of the method disclosed by the invention, target objects can be classified and measured, the peak interference is few, the peak pattern is better, and the detection time is shortened.

Description

technical field [0001] The invention relates to the field of environmental monitoring technology and methods, in particular to a method for measuring semi-volatile organic compounds based on gas chromatography mass spectrometry. Background technique [0002] GB 5085[1].3-2007 Hazardous waste identification standard Leaching toxicity identification Appendix K Determination of semi-volatile organic compounds Gas chromatography / mass spectrometry uses a heating program in the determination of samples (40°C for 4min, 10°C / The min rate is increased to 270°C until the benzo (ghi) perylene is washed out). In actual detection tasks, a certain type of substance is often selected for analysis and detection, so the detection time will be extended for the detection of substances with long retention time, and Simultaneous detection of multiple substances is likely to cause interference, and substances with similar structural formulas and molecular fragments tend to peak at the same time....

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Problems solved by technology

[0002] GB 5085[1].3-2007 Hazardous waste identification standard Leaching toxicity identification Appendix K Determination of semi-volatile organic compounds Gas chromatography / mass spectrometry uses a heating program in the determination of samples (40°C for 4min, 10°C / The min rate is increased to 270°C until the benzo (ghi) perylene is washed out). In actual detection tasks, a certain type of substance is often selected for analysis and detection, so the detection time will be extended for the detection of substances with long retention time, and Simultaneous detection of multiple substances is likely to cause interference, and substances with similar structural formulas and molecular fragments tend to peak at the same time

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