FIELD: chemistry.
SUBSTANCE: after selecting a sample, the admixtures a concentrated, chromatography of the concentrate is carried out on a capillary column, and selective detection is carried out of the content of aromatic compounds (control point) which are characteristic of benzene. Contamination of water with benzene is established in accordance with the ratio of the concentration of control points and concentration of 1,2,4-trimethylbenzole to the values of these ratios earlier found. The control points used are m- + p-ethyltoluene, 1,3,5-trimethylbenzole, o-ethyltoluene.
EFFECT: increased authenticity of detecting benzene in water.
2 ex, 3 tbl
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RU2229122C1 |
| 0 |
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RU2208781C1 |
