气相色谱J质谱法测定石油中 十二种卤代烃示踪剂.

Halogenated hydrocarbon organic tracer is a kind of chemical tracer, which has the characteristics of less adsorption on the bottom surface and easy to be detected. In this resear ch, gas chromatography-mass spectrometry (GC/MS) was applied to analyse p-fl uoro bro mo benzene, bromobenzene, bromocyclohexane, p-dichlorobenzene, m-dichlorobenzene, o-dichlorobenzene, p -bromochlorobenzene, 1, 3, 5-trichlorobenzene, 1, 2, 4-trichloro benzene, p-di bromobenzene, 1, 2, 3-trichloro benzene and bromododecane as t welve halogenated hydrocarbon organic petroleum tracer. The separation was performed on a Kromasil HP-5 column (phenyl met hyl siloxane, 60 m X 320 µm X O. 25 µm). The carrier gas (N2 ) was at a flow rate of 1. 0 mL/min. Quantitative analysis of halogenated hydrocarbon organic petroleum tracer was carried out by electron ionizatio n (El) source and selective ion monitoring (SIM) mode, the sample inject volume was 2 µL, the ion source temperature was 260 °C and the auxiliary heating temperature was 280 °C. The results showed that twelve halogenated hydrocarbon organic petroleum tracer had good linear relationship in the range of 10-10 000 µg/L, the limit detection was 10-4 µg/L, and the standard addition recovery rate was less than 3% . This method has good precision, sensitive, simple and rapid pretreatment, which is suit able for determine the content of petroleum tracer, also can provide a technical way for petroleum tracer detection in the process of petroleum development. [ABSTRACT FROM AUTHOR]