Detecting Research On Gaseous Product Of Dynamite

In the past 100 years , most of the condensed phase high detonantor explosive bulge test field in the world was in the wild or in the open air. although there were shield explosion overpressure and splintery line of explosion tower or explosion vessel in some field of activity zone, the product of explosive were directly letted into the atmosphere without decontamination plant in all, detonate producetion have become one nonnegligible pollutant source, whereas both home and abroad there were no entirety detection research of it, in this study detonate producetion were deteceted by different apparatus, sample treatment mode, sampling-mode comprehensively.Gas chromatogram (GC) was adopted to analysis inorganic gas CO, CO₂, NO, detection sensitivity was high, peak shape was tact, data statistics relative standard deviation RSD was less than 5.0%, the detect method was available with CO , CO₂, NO of detonator in sealed container, the concentration of complete oxidation gaseous product CO, NO was high, the analysis result showed the constitutation of detonator was negative oxygen balance.NOx and SO₂ were chemically detected in the same time, the detection data was proven that NOx exceeded national standard, SO₂ was under national standard.ion chromatography mensuration of detonating gas about F^-, Cl^-, NO₃^-, NO₂^-, SO₃^- was best selectivity, handiness, nicety, celerity, detection limit was 0.009mg/L, 0.030 mg/L, 0.002 mg/L, 0.002mg/L, 0.002 mg/L; Na₂CO₃ and NaHCO₃ mixed liquor, NaOH and H₂O as absorption liquid. The parallelism substance concentration including F^-, Cl^-, NO₃^-, NO₂^-, SO₃^-, CN^- was 3.38mg/m³, 23.89mg/m³, 3.16mg/m³, 0.19mg/m³,0.35mg/m³,0.03mg/m³, with the conversion of gas yield volume, correlation coefficient was above 0.999, while using Versus extremely toxic substance CN^- was absorbed by 0.1mol/LNaOH, detection limit was 0.001mg/L, correlation coefficient was up to 0.9992. Because corresponding concentration producetion in specimen were too low, the analysis showed there was no significant difference between ion chromatography detection and chemical process detection.