[Determination of 2,4-dinitrochlorobenzene in environmental water by primary-secondary wavelengths new spectrophotometry].
In basic solution, dinitrochlorobenzene may react on pyridine to form a purplish red compound. In this paper with the absorption property of a suspended liquid against light a new analytical method as primary-secondary wavelengths spectrophotometry was studied to determine trace dinitrochlorobenzene in environmental water. In 0-50 microg dinitrochlorobenzene/25 mL, the calculation curve is very stable and hardly affected by environment conditions. Experiments for practical waters have shown that the detection limit was 0.7 microg/25 mL dinitrochlorobenzene and RSD < or = 2.7% and the recovery rate was 99.2%-101.0%.
Zhang
P
P
Department of Chemistry, Huaibei Coal Teachers College, 235000 Huaibei.
Gao
H
H
Zhao
J
J
D004137:Dinitrochlorobenzene / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D012722:Sewage / Q000737:chemistry; D013053:Spectrophotometry / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis*
D004137:Dinitrochlorobenzene; D012722:Sewage; D014874:Water Pollutants, Chemical